bourns-html.html

Specifications are subject to change without notice.

Model

Number

See

Note 2

Adjust

Size

Element

Technology

Number
of Turns

Sealed

Open

See

Note 1

Packaging

Options

Page

No.

NOTE 1:

Standard packaging; some options may require alternate packaging. Consult factory.
T = Tube, B = Bulk, E = Embossed Tape - 7" Reel, G = Embossed Tape - 13" Reel

NOTE 2:

T = Top Adjustment, S = Side Adjustment, B = Bottom Adjustment

*Indicates patented models.

Cermet

W/W

Single

Multi Sealed Open

2mm 3mm 4mm 5mm

1/4"

SMT Trimmers - Product Selection Guide

Specifications are subject to change without notice.

Element

Number

Packaging

Model

Technology

of Turns

Options

Number

Page

No.

Size

Adjust

See

Note 2

NOTE 1:

Standard packaging; some options may require alternate packaging. Consult factory.
T = Tube, B = Bulk, R = Tape and Reel

NOTE 2: T = Top Adjustment, S = Side Adjustment

*Indicates patented models.

**Optional products (not recommended for new designs).

Cermet

Single Multi 1/4" Sq. 5/16" Sq. 3/8" Sq.

1/2"

3/4"

1-1/4"

See Note 1

Commercial/Industrial Through-Hole Sealed

Specifications are subject to change without notice.

Element

Number

Packaging

Model

Technology

of Turns

Options

Number

Cermet

Carbon

Single

Multi

SMT

Leaded

2mm

3mm

4mm

6mm

9mm

3/8"

See Note 1

Size

Adjust

See

Note 2

Element

Number

Mounting

Packaging

Model

Technology

of Turns

Type

Options

Number

Page

No.

NOTE 1:

Standard packaging; some options may require alternate packaging. Consult factory.

NOTE 2: T = Top Adjustment, S = Side Adjustment,

T = Tube, B = Bulk, E = Embossed Tape - 7" Reel, G = Embossed Tape - 13" Reel

B = Bottom Adjustment

T&R = Tape & Reel, A = Ammo Pak

* Indicates patented models.

Size

Adjust

Cermet

Single Multi

1/4"

5/16"

3/8"

1/2"

3/4"

1-1/4"

See Note 1

Element

Technology

Turns

Size

Model

Number

See

Note 1

See

Note 2

Page

No.

Adjust

Packaging

Options

Cermet

W/W

Single

Multi

1/4"

3/8"

1/2"

1-1/4"

Page

No.

See

Note 2

Military Products

Application Specific Products

Open Frame Trimmers

3006 - Trimpot

Trimming Potentiometer

Specifications are subject to change without notice.

Features

■

3/4” Rectangular / Multiturn

Cermet / Industrial / Sealed

■

Low PC board profile - only 1/4” high

■

Panel mount option available,
(see page 72 for details)

■

Transparent housing available, can
be set visually without hook-up and
instrumentation (“P” style only)

Electrical Characteristics

Standard Resistance Range

..................................10 to 5 megohms

(see standard resistance table)

Resistance Tolerance .............±10% std.

(tighter tolerance available)

Absolute Minimum Resistance

............................1.0% or 2 ohms max.

(whichever is greater)

Contact Resistance Variation

..............................1.0% or 1 ohm max.

(whichever is greater)

Adjustability

Voltage......................................±0.01%
Resistance ................................±0.05%

Resolution.....................................Infinite
Insulation Resistance ................500 vdc.

1,000 megohms min.

Dielectric Strength

Sea Level ...............................1,000 vac
80,000 Feet...............................250 vac

Adjustment Angle .............15 turns nom.

Environmental Characteristics

Power Rating (400 volts max.)

70°C .......................................0.75 watt
125°C ..........................................0 watt

Temperature Range ......-55°C to +125°C
Temperature Coefficient .....±100ppm/°C
Seal Test ........................85°C Fluorinert*
Humidity........MIL-STD-202 Method 103

96 hours

(3%

∆

TR, 20 Megohms IR)

Vibration............20G (2%

∆

TR; 2%

∆

VR)

Shock................50G (2%

∆

TR; 2%

∆

VR)

Load Life ....1,000 hours 0.75 watt 70°C

(4%

∆

TR)

Rotational Life ........................200 cycles

(3%

∆

TR; 1% or 1 ohm,

whichever is greater, CRV)

Physical Characteristics

Torque .............................5.0 oz-in. max.
Mechanical Stops..................Wiper idles
Terminals ........................Solderable pins
Weight ........................................0.04 oz.
Marking ...........................Manufacturer’s

trademark, resistance code,

terminal numbers, date code,

manufacturer’s model number

and style

Wiper Positioning ..............50% nominal
Flammability ..........................U.L. 94V-0
Standard Packaging .....25 pcs. per tube
Adjustment Tool ..............................H-90

CLOCKWISE

CCW

WIPER

1.40

(.055)

6.35

(.250)

19.05

(.750)

1.52

(.060)

.38

(.015)

5.33

.89

(.210

.035)

.76

(.030)

.51

.03

(.020

.001)

4.83

(.190)

4.70

.38

(.185

.015)

3.30

(.130)

5.08

(.200)

12.70

(.500)

2.54

(.100)

Common Dimensions

3006P

1.40

(.055)

.64

(.025)

7.62

(.300)

17.78

(.700)

3006Y

3.30

(.130)

5.08

(.200)

12.70

(.500)

3006W

5.08

(.200)

2.54

(.100)

DIA. PINS TYP.

MIN.

ADJ. SLOT
2.36
(.093)
.79
(.031)
.64
(.025)

WIDE

DEEP

DIA.

Standard Resistance Table

Popular values listed in boldface. Special
resistances available.

How To Order

3006 P - 1 - 103 Z

Model

Style

Standard or Modified

Product Indicator

-1 = Standard Product
-7 = Transparent Housing

Resistance Code

Optional Suffix Letter

Z = Panel Mount

(Factory Installed)

Consult factory for other available options.

Resistance

(Ohms)

Code

100

200

500

100

101

200

201

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

25,000

253

50,000

503

100,000

104

200,000

204

250,000

254

500,000

504

1,000,000

105

2,000,000

205

SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

AVAILABLE

THROUGH

DISTRIBUTION

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

*”FLUORINERT” IS A REGISTERED TRADEMARK OF 3M CO.

Nominal

Resistance

Resolution

(Ohms)

Code

(Percent)

100

2.40

200

1.90

500

1.40

100

101

1.00

200

201

0.86

500

501

0.89

1,000

102

0.72

2,000

202

0.58

5,000

502

0.43

10,000

103

0.34

20,000

203

0.31

50,000

503

0.24

Specifications are subject to change without notice.

Features

■

1-1/4” Rectangular / Multiturn

Wirewound / Industrial / Sealed

■

Panel mount option available
(see page 72 for details)

Electrical Characteristics

Standard Resistance Range

.....................................10 to 50K ohms

(see standard resistance table)

Resistance Tolerance ...............±5% std.

(tighter tolerance available)

Absolute Minimum Resistance

..............................0.1% or 1 ohm max.

(whichever is greater)

Noise ......................100 ohms ENR max.
Resolution .............See Resistance Table
Insulation Resistance ................500 vdc.

1,000 megohms min.

Dielectric Strength

Sea Level ...............................1,500 vac
70,000 Feet...............................400 vac

Adjustment Travel .............22 turns nom.

Environmental Characteristics

Power Rating @ 70°C....................1 watt
Power Rating @ 150°C..................0 watt
Temperature Range ......-55°C to +150°C
Temperature Coefficient .......±50ppm/°C
Seal Test ........................85°C Fluorinert*

(pin styles only)

Humidity........MIL-STD-202 Method 106

96 hours

∆

TR, 100 Megohms IR)

Vibration .................30G (1%

∆

TR; 0.5%

+ resolution

∆

VR)

Shock ...................100G (1%

∆

TR; 0.5%

+ resolution

∆

VR)

Load Life .....1,000 hours 1 watt @ 70°C

(2%

∆

TR)

Rotational Life........200 cycles (2%

∆

TR)

Physical Characteristics

Torque .............................5.0 oz-in. max.
Mechanical Stops..................Wiper idles
Terminals .........Solderable pins and lugs
Flexible leads ......(7 strands of 30 AWG)
Weight ........................................0.10 oz.
Marking .........Manufacturer’s trademark,

resistance code, terminal numbers,

date code, manufacturer’s model

number and style

Wiper ...............................Set at CW end
Flammability ...........................U.L. 94V-0
Standard Packaging

P&Y Style ....................10 pcs. per tube
L&J Style ......................25 pcs. per bag

Adjustment Tool ..............................H-90

7.62

(.300)

17.78

(.700)

6.35

(.250)

12.70

.79

(.500

.031)

3057Y

2.54

(.100)

2.54

(.100)

.71

.03

(.028

.001)

DIA. TYP.

3.18

(.125 )

31.75

(1.25)

25.4

(1.000)

1.47

.56

(.058

.022)

2.36

(.093)

MTG. HOLES (2)

LEADS MIN. LENGTH

6.10

(.240)

6.10

(.240)

4.83

(.190)

8.00

.38

(.315

.015)

2.67

(.105 )

3.43

.38

(.135

.015)

3057L
Common Dimensions

17.78

(.700)

22.86

(.900)

6.60

(.260)

12.70

.79

(.500

.031)

3057P

3057J

3.80

(.150)

2.54

(.100)

17.78

(.700)

7.62

(.300)

6.35

(.250)

DIA.

TYP.

152.4

(6.000)

ADJ. SLOT
2.92

.38

(.115

.015)

.64
(.025)
.79
(.031)

WIDE

DEEP

DIA.

.71

.03

(.028

.001)

DIA. TYP.

.71

.03

(.028

.001)

DIA. TYP.

Standard Resistance Table

How To Order

3057 L - 1 - 103 M

Model

Style

Standard or Modified

Product Indicator

-1 = Standard Product

Resistance Code

Optional Suffix Letter

M = Panel Mount

(Factory Installed)

GREEN
CW

CLOCKWISE

YELLOW
CCW

WIPER

RED

Popular values listed in boldface. Special
resistances available.

SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

3057 - Trimpot

Trimming Potentiometer

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

*”FLUORINERT” IS A REGISTERED TRADEMARK OF 3M CO.

3059 - Trimpot

Trimming Potentiometer

Specifications are subject to change without notice.

Features

■

1-1/4” Rectangular / Multiturn

Cermet / Industrial / Sealed

■

Panel mount option available
(see page 72 for details)

Electrical Characteristics

Standard Resistance Range

..................................10 to 2 megohms

(see standard resistance table)

Resistance Tolerance .............±10% std.

(tighter tolerance available)

Absolute Minimum Resistance

...............................1% or 2 ohms max.

(whichever is greater)

Contact Resistance Variation

..............................1.0% or 1 ohm max.

(whichever is greater)

Adjustability

Voltage......................................±0.01%
Resistance ................................±0.05%

Resolution.....................................Infinite
Insulation Resistance ................500 vdc.

1,000 megohms min.

Dielectric Strength

Sea Level ..................................900 vac
70,000 Feet...............................350 vac

Effective Travel..................22 turns nom.

Environmental Characteristics

Power Rating @ 70°C (400 volts max.)

..................................................1.0 watt

Power Rating @ 150°C.................0 watt
Temperature Range ......-55°C to +150°C
Temperature Coefficient .....±100ppm/°C
Seal Test ........................85°C Fluorinert*

(pin styles only)

Humidity........MIL-STD-202 Method 106

(2%

∆

TR, 10 Megohms IR)

Vibration............20G (1%

∆

TR; 1%

∆

VR)

Shock................50G (1%

∆

TR; 1%

∆

VR)

Load Life ..1,000 hours 1.0 watt @ 70°C

(3%

∆

TR; 1% or 1 ohms,

whichever is greater, CRV)

Rotational Life ........................200 cycles

(2%

∆

TR; 1% or 1 ohm,

whichever is greater, CRV)

Physical Characteristics

Torque .............................5.0 oz-in. max.
Mechanical Stops..................Wiper idles
Terminals .Solderable printed circuit pins
Flexible leads ......(7 strands of 30 AWG)
Weight ..........................................0.1 oz.
Marking .........Manufacturer’s trademark,

......................resistance code, terminal

....numbers, date code, manufacturer’s

....................... model number and style

Wiper ...............................Set at CW end
Flammability ...........................U.L. 94V-0
Standard Packaging

P&Y Styles ..................10 pcs. per tube
L&J Styles ....................25 pcs. per bag

Adjustment Tool ..............................H-90

GREEN
CW

CLOCKWISE

YELLOW
CCW

WIPER

RED

3.18

(.125)

31.75

(1.25)

25.4

(1.000)

1.47

.56

(.058

.022)

2.36

(.093)

MTG. HOLES (2)

LEADS MIN. LENGTH

6.10

(.240)

6.10

.240

4.83

(.190)

8.00

.38

(.315

.015)

2.67

.25

(.105

.010)

3.43

.38

(.135

.015)

3059L
Common Dimensions

17.78

(.700)

22.86

(.900)

6.60

(.260)

12.70

.79

(.500

.031)

.71

.03

(.028

.001)

3059P

3059J

3.80

(.150)

2.54

(.100)

17.78

(.700)

7.62

(.300)

6.60

(.260)

DIA.

TYP.

DIA. TYP.

TYP.

152.4

(6.000)

ADJ. SLOT
2.92

.38

(.115

.015)

.64
(.025)
.79
(.031)

WIDE

DEEP

DIA.

.71

.03

(.028

.001)

DIA. TYP.

.71

.03

(.028

.001)

DIA. TYP.

7.62

(.300)

17.78

(.700)

6.60

(.260)

12.70

.79

(.500

.031)

3059Y

2.54

(.100)

2.54

(.100)

Standard Resistance Table

Popular values listed in boldface. Special
resistances available.

How To Order

3059 L - 1 - 103 M

Model

Style

Standard or Modified

Product Indicator

-1 = Standard Product

Resistance Code

Optional Suffix Letter

M = Panel Mount

(Factory Installed)

Resistance

(Ohms)

Code

100

200

500

100

101

200

201

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

25,000

253

50,000

503

100,000

104

200,000

204

250,000

254

500,000

504

1,000,000

105

2,000,000

205

AVAILABLE

THROUGH

DISTRIBUTION

SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

*”FLUORINERT” IS A REGISTERED TRADEMARK OF 3M CO.

Specifications are subject to change without notice.

Electrical Characteristics

Standard Resistance Range

....................................10 to 2 megohm

(see standard resistance table)

Resistance Tolerance .............±10% std.
Absolute Minimum Resistance

.....................................1% or 2.0 ohms

(whichever is greater)

Contact Resistance Variation

...............................3% or 3 ohms max.

Resolution...................Essentially Infinite
Insulation Resistance ................500 vdc.

100 megohms min.

Dielectric Strength

Sea Level ..................600 vac (1minute)

Adjustment Angle ...............5 turns nom.

Environmental Characteristics

Power Rating (300 volts max.)

85°C .......................................0.25 watt
150°C ..........................................0 watt

Temperature Range ......-65°C to +150°C
Temperature Coefficient .....±100ppm/°C
Humidity ........MIL-STD 202 Method 106

TRS ±2%; IR 10 megohms

Vibration ..........20G TRS±1%; VRS ±1%
Shock ............100G TRS ±1%; VRS±1%
Load Life

..........@ 85°C rated power 1,000 hours

TRS 3 ohms or 3%

(whichever is greater)

Rotational Cycling..................200 cycles

TRS 3 ohms or 3%

(whichever is greater)

Thermal Shock ...........................5 cycles

TRS±2%; VRS±1%

Physical Characteristics

Mechanical Stop ...................Wiper idles
Torque ..............................180g-cm max.
Weight ................Approximately 0.01 oz.
Marking .................Manufacturer’s code,

resistance code and date code

Solderability ..............Per MIL-STD-202,

Method 208

Wiper ......................Set at 50% nominal
Flammability ..............................UL94V0
Pushover Strength ..2 Kilograms (4.4lbs)
Adjustment Tool ..............................H-91

3214G Side Adjust

5.2

(.205)

1.27

(.050)

2.3

(.091)

2.0

(.079)

1.27

(.050)

2.24

(.088)

4.8

(.189)

1.3

(.051)

0.80

(.031)

ADJUSTMENT SLOT

0.56

(.022)

1.52

(.060)

2.79

(.110)

1.17

(.046)

2.41

(.095)

4.57

(.180)

5.82

(.229)

0.2

.008

3.91

(.154)

0.61

(.024)

WIDE

TYP.

SQ. 2 PLCS.

2 PLCS.

DEEP

.51

(.020)

DIA.

Features

■

Surface Mount 4mm Square / Multiturn

Cermet / Industrial / Sealed

■

Sealed to withstand board wash
processing

■

Pick and place centering design, with
flush adjustment

■

4mm design meets EIA/EIAJ/IPC/VRCI
SMD standard trimmer footprint

■

Top and side adjust styles

■

J-hook, and gull-wing

■

Patent #5047746 advanced drive/wiper
mechanism

3214W Top Adjust

5.1

(.201)

1.3

(.051)

2.54

(.100)

2.0

(.079)

2.9

(.114)

3.5

(.138)

3.9

(.154)

2.54

(.100)

2.6

(.102)

1.2

(.047)

1.52 DIA.

(.060)

4.8

(.189)

0.2

.008

1.0

(.039)

3 PLCS.

1.2

(.047)

5.3

(.209)

0.9

(.035)

1.3

(.051)

2 PLCS.

0.8

(.031)

2 PLCS.

1.6

(.063)

3 PLCS.

ADJUSTMENT SLOT

0.56

(.022)

WIDE

DEEP

.51

(.020)

CLOCKWISE

CCW

WIPER

How To Order

3214 J - 1 - 502 E

Model

Style

Standard or Modified
Product Indicator

-1 = Standard Product - IR Reflow

* -2 = Wave Solderable

Resistance Code

Embossed Tape Designator
Style J, G: 500 pcs./7” reel (standard)
Style W:

250 pcs./7” reel (standard)

Consult factory for other available options.
* -2 has a treated stainless steel shaft

3214 - 5-Turn Trimming Potentiometer

AVAILABLE

THROUGH

DISTRIBUTION

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

3214J Side Adjust

1.3

(.051)

4.0

(.157)

2.79

(.102)

4.57

(.180)

5.0

(.197)

3.7

(.146)

0.8

(.0031)

1.17

(.046)

2.4

(.095)

2.24

(.088)

4.8

(.189)

0.2

(.008)

0.80

(.031)

2 PLCS.

2.3

(.091)

1.27

(.050)

2 PLCS.

2.0

(.079)

(.078)

TYP.

1.2

(.047)

3 PLCS.

ADJUSTMENT SLOT

0.56

(.022)

WIDE

DEEP

.51

(.020)

1.52

(.060)

DIA.

Specifications are subject to change without notice.

Resistance

(Ohms)

Code

100

200

500

100

101

200

201

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

50,000

503

100,000

104

200,000

204

500,000

504

1,000,000

105

2,000,000

205

TAPE

7.50

.05

(.295

.002)

12.00

.20

(.472

.008)

4.50

.10

(.177

.039)

5.32

.10

(.209

.004)

.04

(.002)

MAX.

5.75

(.226)

MAX.

16.00

.30

(.630

.012)

1.5 + .10/ –.00

(.059 + .004/ –.000)

4.00

.10

(.157

.004)

2.00

.05

(.079

.002)

1.75

.10

(.069

.004)

DIA.

177.8

2.03

(7.000

.080)

2.67

.25

(.105

.010)

16.4 + 1.81/ -.000

(.646

.071/ -.000)

REEL

Cover tape peel strength:
Meets EIA specification 481.

13.0

.508

(.512

.020)

1.78

.25

(.070

.010)

EQUAL SPACED

3 PLCS.

DIA.

59.18

2.03

(2.330

.080)

21.01

.79

(.827

.031)

DIA.

TAPE

178

2.0

(7.008

.079)

13.0

.51

(.512

.020)

1.78

.25

(.070

.010)

21.01

.79

(.827

.031)

2.67

.25

(.105

.010)

59.18

2.03

(2.330

.080)

12.4 + 2.01/ -.000

(.488 + .079/ -.000)

REEL

4.5

(.177)

5.52

.05

(.217

.002)

1.5 + .10/ –.00

(.059 + .004/ –.000)

4.00

.10

(.157

.004)

2.00

.05

(.079

.002)

8.00

.20

(.315

.008)

1.75

.10

(.069

.004)

12.00

.30

(.472

.012)

5.10

.10

(.201

.039)

5.56

.10

(.219

.004)

6.25

.10

(.246

.004)

Cover tape peel strength:
Meets EIA specification 481.

MAX.

.04

(.002)

MAX.

(J)

(G)

DIA.

EQUAL SPACED

3 PLCS.

DIA.

Packaging Specifications

(J & G Styles)

Packaging Specifications

(W Style)

Standard Resistance Table

Popular values listed in boldface. Special
resistances available.

Units packaged 500 pieces per reel.

Units packaged 250 pieces per reel.

3214 - Packaging Specifications

SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

3224 - 4mm SMD Trimming Potentiometer

Specifications are subject to change without notice.

Electrical Characteristics

Standard Resistance Range

....................................10 to 2 megohm

(see standard resistance table)

Resistance Tolerance .............±10% std.
Absolute Minimum Resistance

.....................................1% or 2.0 ohms

(whichever is greater)

Contact Resistance Variation

...............................1% or 3 ohms max.

Resolution...................Essentially Infinite
Insulation Resistance ................500 vdc.

100 megohms min.

Dielectric Strength

Sea Level ..................600 vac (1minute)

Adjustment Angle .............11 turns nom.

Environmental Characteristics

Power Rating (300 volts max.)

85°C .......................................0.25 watt
150°C ..........................................0 watt

Temperature Range ......-65°C to +150°C
Temperature Coefficient .....±100ppm/°C
Humidity ........MIL-STD 202 Method 106

TRS ±2%; IR 10 megohms

Vibration ..........20G TRS±1%; VRS ±1%
Shock ............100G TRS ±1%; VRS±1%
Load Life

..........@ 85°C rated power 1,000 hours

TRS 3 ohms or 3% (whichever is greater)
Rotational Cycling..................200 cycles
TRS 3 ohms or 3% (whichever is greater)
Thermal Shock ...........................5 cycles

TRS±2%; VRS±1%

Physical Characteristics

Mechanical Stop ...................Wiper idles
Torque ..............................180g-cm max.
Weight ................Approximately 0.01 oz.
Marking .................Manufacturer’s code,

resistance code and date code

Solderability ..............Per MIL-STD-202,

Method 208

Wiper ......................Set at 50% nominal
Flammability ..............................UL94V0
Adjustment Tool ..............................H-91

Features

■

Surface Mount 4mm Square / Multiturn

Cermet / Industrial / Sealed

■

Sealed to withstand board wash
processing

■

Pick and place centering design, with
flush adjustment

■

4mm design meets EIA/EIAJ/IPC/VRCI
SMD standard trimmer footprint

■

Low CRV - 1%

■

DESC selected material drawing #92021

3224W Top Adjust

5.3

(.209)

0.2

(.008)

0.9

(.035)

1.0

(.039)

1.2

(.047)

5.1

(.201)

4.8

(.189)

1.3

(.051)

2.54

(.100)

2.9

(.114)

3.5

(.138)

1.52

(.060)

3.9

(.155)

2.54

(.100)

2.6

(.102)

1.2

(.047)

DIA.

3 PLCS.

2.0

(.079)

0.80

(.031)

2 PLCS.

1.3

(.051)

2 PLCS.

1.6

(.063)

ADJUSTMENT SLOT

0.56

(.022)

WIDE

DEEP

.51

(.020)

3224X Top Adjust

5.3

(.209)

0.2

(.008)

1.0

(.039)

5.1

(.201)

4.8

(.189)

2.54

(.100)

2.54

(.100)

5.1

(.200)

3.5

(.138)

.80

(.031)

1.3

(.051)

5.7

(.225)

3.9

(.155)

1.2

(.047)

2 PLCS

3 PLCS.

2.0

(.079)

0.80

(.031)

2 PLCS.

TYP.

1.32

(.052)

2 PLCS.

1.9

(.074)

ADJUSTMENT SLOT

0.56

(.022)

WIDE

DEEP

.51

(.020)

3224J Side Adjust

2.0

(.079)

4.0

(.157)

5.0

(.197)

3.7

(.146)

0.8

(.031)

2.3

(.090)

4.8

(.189)

1.52

(.060)

2.6

(.102)

1.2

(.047)

2.4

(.094)

DIA.

4.6

(.181)

0.2

(.008)

2.3

(.090)

2.0

(.079)

1.3

(.051)

2 PLCS.

TYP.

0.9

(.034)

1.3

(.050)

2 PLCS.

1.3

(.050)

2 PLCS.

ADJUSTMENT SLOT

0.56

(.022)

WIDE

DEEP

.51

(.020)

3224G Side Adjust

5.2

(.205)

1.27

(.050)

2.3

(.090)

2.0

(.079)

1.27

(.050)

2.3

(.090)

4.8

(.189)

0.9

(.034)

1.52

(.060)

2.74

(.108)

1.2

(.047)

2.4

(.094)

4.57

(.180)

6.0

(.236)

0.2

(.008)

3.91

(.154)

0.61

(.024)

DIA.

1.3

(.050)

TYP.

2 PLCS.

ADJUSTMENT SLOT

0.56

(.022)

WIDE

DEEP

.51

(.020)

How To Order

3224 J - 1 - 502 E

Model

Style

Standard or Modified
Product Indicator

-1 = Standard Product - IR Reflow

* -2 = Wave Solderable

-FW5 = .070” ± .010” Shaft Extension

Resistance Code

Embossed Tape Designator
Style J, G: 500 pcs./7” reel (standard)
Style W:

250 pcs./7” reel (standard)

Consult factory for other available options.
* -2 has a treated stainless steel shaft

AVAILABLE

THROUGH

DISTRIBUTION

Resistance

(Ohms)

Code

100

200

500

100

101

200

201

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

50,000

503

100,000

104

200,000

204

500,000

504

1,000,000

105

2,000,000

205

Specifications are subject to change without notice.

TAPE

7.50

.05

(.295

.002)

12.00

.20

(.472

.008)

4.50

.10

(.177

.039)

5.32

.10

(.209

.004)

.04

(.002)

MAX.

5.75

(.226)

MAX.

16.00

.30

(.630

.012)

1.5 + .10/ –.00

(.059 + .004/ –.000)

4.00

.10

(.157

.004)

2.00

.05

(.079

.002)

1.75

.10

(.069

.004)

DIA.

177.8

2.03

(7.000

.080)

2.67

.25

(.105

.010)

16.4 + 1.81/ -.000

(.646

.071/ -.000)

REEL

Cover tape peel strength:
Meets EIA specification 481.

13.0

.508

(.512

.020)

1.78

.25

(.070

.010)

EQUAL SPACED

3 PLCS.

DIA.

59.18

2.03

(2.330

.080)

21.01

.79

(.827

.031)

DIA.

TAPE

7.50

.10

(.295

.004)

12.00

.30

(.472

.012)

6.70

.10

(.264

.004)

(.002)

6.10

.10

(.240

.004)

16.0

0.30

(.630

.012)

8.60

(.339)

5.70

.10

(.224

.004)

1.5 + .10/ –.00

(.059 + .004/ –.000)

4.00

.10

(.157

.004)

2.00

.005

(.079

.002)

1.75

.10

(.069

.004)

DIA.

MAX

TAPE

178

2.0

(7.008

.079)

13.0

.51

(.512

.020)

1.78

.25

(.070

.010)

21.01

.79

(.827

.031)

2.67

.25

(.105

.010)

59.18

2.03

(2.330

.080)

12.4 + 2.01/ -.000

(.488 + .079/ -.000)

REEL

4.5

(.177)

5.52

.05

(.217

.002)

1.5 + .10/ –.00

(.059 + .004/ –.000)

4.00

.10

(.157

.004)

2.00

.05

(.079

.002)

8.00

.20

(.315

.008)

1.75

.10

(.069

.004)

12.00

.30

(.472

.012)

5.10

.10

(.201

.039)

5.56

.10

(.219

.004)

6.25

.10

(.246

.004)

Cover tape peel strength:
Meets EIA specification 481.

MAX.

.04

(.002)

MAX.

(J)

(G)

DIA.

EQUAL SPACED

3 PLCS.

DIA.

Additional Features

■

Top and side adjust styles

■

J-hook, and gull-wing

■

Patent #5047746 advanced drive/wiper
mechanism

J & G Styles

W Style

X Style

Standard Resistance Table

Popular values listed in boldface. Special
resistances available.

Units packaged 500 pieces per reel.

Units packaged 250 pieces per reel. (w)
Units packaged 200 pieces per reel. (x)

CLOCKWISE

CCW

WIPER

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

3224 - Packaging Specifications

SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

W & X Style Reel

3250/RT22/RTR22 - 1/2” Square Trimming Potentiometer

Specifications are subject to change without notice.

Features

■

Multiturn / Wirewound / Sealed

■

Listed on the QPL for style RT22 per
MIL-R-27208 and RTR22 per

High-Rel MIL-R-39015

■

Panel Mount option available
(see page 73 for details)

Electrical Characteristics

Standard Resistance Range

3250 .....................................10 to 50K ohms
RT22 .....................................50 to 20K ohms
RTR22 ................................500 to 20K ohms

(see standard resistance table)

Resistance Tolerance ........................±5% std.

(tighter tolerance available)

Absolute Minimum Resistance

.......0.1% or 1 ohm max. (whichever is greater)

Noise...............................100 ohms ENR max.
Resolution .....................See Resistance Table
Insulation Resistance .........................500 vdc.

1,000 megohms min.

Dielectric Strength

Sea Level........................................1,000 vac
80,000 Feet .......................................400 vac

Adjustment Travel ......................25 turns nom.

Environmental Characteristics

Power Rating @ 85°C

3250 ..................................................1.0 watt
RT22/RTR22 ...................................0.75 watt

Power Rating @ 150°C ..........................0 watt
Temperature Range...............-65°C to +150°C
Temperature Coefficient

3250 ............................................±50ppm/°C
RT22/RTR22................................±50ppm/°C

Seal Test .......85°C Fluorinert* (pin styles only)
Humidity ................MIL-STD-202 Method 106

3250 ..................(2%

∆

TR; 100 Megohms IR)

RT22....................(1%

∆

TR; 10 Megohms IR)

RTR22 ...............(1%

∆

TR; 100 Megohms IR)

Vibration ....................................................30G

(1%

∆

TR; 0.5% + resolution

∆

VR)

Shock ......................................................100G

(1%

∆

TR; 0.5% + resolution

∆

VR)

Load Life

3250 ................1,000 hours 1.0 watt @ 85°C

(2%

∆

TR; 500 ohms ENR)

RT22 .............1,000 hours 0.75 watt @ 85°C

(2%

∆

TR; 2% + resolution

∆

VR)

RTR22 .........10,000 hours 0.75 watt @ 85°C

(3%

∆

TR; 2% + resolution

∆

TR)

Rotational Life.................................200 cycles

3250 .....................(2%

∆

TR; 500 ohms ENR)

RT22/RTR22 ...................................(2%

∆

TR)

Physical Characteristics

Torque ......................................5.0 oz-in. max.
Mechanical Stops ..........................Wiper idles
Terminals

3250..............Solderable printed circuit pins

Flexible leads (7 strands of 30 AWG)

RT22/RTR22 .......MIL-STD-202; Method 208

Weight .................................................0.06 oz.
Machine Screw Mounting

Torque .....................................12 oz-in. max.

Marking

3250.....................Manufacturer’s trademark,

resistance code, terminal numbers,

date code, manufacturer’s model

number and style

RT22/RTR22 ..............Mil-spec part number

Wiper ........................................Set at CW end
Flammability....................................U.L. 94V-0
Standard Packaging

P&W Styles..........................25 pcs. per tube
L Style...................................25 pcs. per bag

Adjustment Tool .......................................H-90

GREEN
CW

CLOCKWISE

YELLOW
CCW

WIPER

RED

1.98
(.078)

3250P/RT22/RTR22 Common Dimensions
(Pin Styles)

12.7

(.500)

TYP.

DIA. THRU
(2 PLACES)

.89

(.035)

TYP.

1.78

(.070)

5.59

(.220)

TYP.

13.33

.64

(.525

.025)

.71

.08

(.028

.003)

2.54

(.100)

2.54

(.100)

6.35

(.250)

"L" Flex Lead Type
RT22 has mounting slots
RTR22 has mounting holes

2.36
(.093)

13.21

(.520)

12.70

(.500)

1.40

(.055)

4.75

(.187)

.89

(.035)

1.52

(.060)

152.4

(6.00)

2.79

(.110)

3250W/RT22/RTR22

3250W-66/RT22X/RTR22X

2.79

(.110)

12.7

(.500)

12.7

(.500)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

6.35

(.250)

6.35

(.250)

6.35

(.250)

DIA. TYP.

TYP.

LENGTH

MIN.

DIA. THRU
(2 PLACES)

13.21
(.520)

2.03

.38

(.080

.015)

WIDE

DEEP

DIA.

ADJ. SLOT

3.1

(.122)

.64

(.024)

Standard Resistance Table

Popular values listed in boldface. Special
resistances available.

How To Order

3250 L - 1 - 103 M

Model

Style

Standard or Modified

Product Indicator

-1 = Standard Product

Resistance Code

Optional Suffix Letter

M = Panel Mount

(Factory Installed)

See page 80 for RT22/RTR22 ordering
information.

Consult factory for other available options.

Nominal

Resistance

Resolution

(Ohms)

Code

(Percent)

100

1.30

200

1.00

500

0.80

100

101

0.90

200

201

0.70

500

501

0.60

1,000

102

0.40

2,000

202

0.30

5,000

502

0.25

10,000

103

0.19

20,000

203

0.16

25,000

253

0.14

50,000

503

0.13

SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

AVAILABLE

THROUGH

DISTRIBUTION

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

*”FLUORINERT” IS A REGISTERED TRADEMARK OF 3M CO.

3252/RJ22 - 1/2” Square Trimming Potentiometer

1.52

(.060)

3252P/RJ22
Common Dimensions
(Pin Styles)

2.54

(.100)

3252W/RJ22

5.59

(.220)

12.7

(.500)

TYP.

12.7

(.500)

TYP.

1.98
(.078)

DIA. THRU

(2 PLACES)

TYP.

13.21
(.520)

2.54

(.100)

2.54

(.100)

6.35

(.250)

6.35

(.250)

13.34

.64

(.525

.025)

.71

.08

(.028

.003) DIA. TYP.

1.78

(.070)

TYP.

5.59

(.220)

2.54

(.100)

2.54

(.100)

2.79

(.110)

6.35

(.250)

ADJ. SLOT
2.03

.38

(.080

.015)

.64
(.025)
.50
(.020)

WIDE

DEEP

DIA.

3252L/RJ22

1.52

(.060)

4.75

(.187)

3252X/RJ22

6.35

(.250)

13.21

(.520)

2.36
(.093)

1.52

(.060)

.89

(.035)

TYP.

12.70

(.500)

12.70

(.500)

152.4

(6.00)

LENGTH

MIN.

2.54

(.100)

2.54

(.100)

1.78

(.070)

5.59

(.220)

Specifications are subject to change without notice.

Resistance

(Ohms)

Code

100

200

500

100

101

200

201

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

25,000

253

50,000

503

100,000

104

200,000

204

500,000

504

1,000,000

105

2,000,000

205

Features

■

Multiturn / Cermet / Sealed

■

Listed on the QPL for style RJ22 per
MIL-R-22097

■

Panel mount option available
(see page 73 for details)

Electrical Characteristics

Standard Resistance Range

3252 ..............................10 to 2 megohms
RJ22................................10 to 1 megohm

(see standard resistance table)

Resistance Tolerance .................±10% std.

.......................(tighter tolerance available)

Absolute Minimum Resistance

3252...........................1% or 2 ohms max.

(whichever is greater)

RJ22 .......................................1 ohm max.

Contact Resistance Variation

3252...........................1% or 2 ohms max.

(whichever is greater)

RJ22 ..........................2% or 2 ohms max.

(whichever is greater)

Adjustability

Voltage..........................................±0.01%
Resistance ....................................±0.05%

Resolution.........................................Infinite
Insulation Resistance ....................500 vdc.

1,000 megohms min.

Dielectric Strength

Sea Level ...................................1,000 vac
80,000 Feet...................................400 vac

Effective Travel......................25 turns nom.

Environmental Characteristics

Power Rating @ 85°C (400 volts max.)

3252 ...........................................0.75 watt
RJ22 ...........................................0.50 watt

Power Rating @ 150°C ......................0 watt
Temperature Range ..........-65°C to +150°C
Temperature Coefficient .........±100ppm/°C
Seal Test ............................85°C Fluorinert*

(pin styles only)

Humidity

3252 ..............MIL-STD-202 Method 103;

96 hours (1%

∆

TR; 100 Megohms IR)

RJ22 ................MIL-STD-202 Method 106

(1%

∆

TR; 10 Megohms IR)

Vibration

3252 ....................30G (1%

∆

TR; 1%

∆

VR)

RJ22....................20G (1%

∆

TR; 1%

∆

VR)

Shock..................100G (1%

∆

TR; 1%

∆

VR)

Load Life

3252 .........1,000 hours 0.75 watt @ 85°C

(3%

∆

TR; 3% or 3 ohms,

whichever is greater, CRV)

RJ22 ...........1,000 hours 0.5 watt @ 85°C

(2%

∆

TR; 1%

∆

VR)

Rotational Life ............................200 cycles

3252 ..................(2%

∆

TR; 3% or 3 ohms,

whichever is greater, CRV)

RJ22.............................................2%

∆

Physical Characteristics

Torque..................................5.0 oz-in. max.
Mechanical Stops......................Wiper idles
Terminals

3252 ..........Solderable printed circuit pins
RJ22 ...............MIL-STD-202; Method 208

Flexible leads ..........(7 strands of 30 AWG)
Weight ..........................................0.065 oz.
Wiper ...................................Set at CW end
Flammability ...............................U.L. 94V-0

GREEN
CW

CLOCKWISE

YELLOW
CCW

WIPER

RED

Standard Resistance Table

Popular values listed in boldface. Special
resistances available.

How To Order

3252 L - 1 - 103 M

Model

Style

Standard or Modified

Product Indicator

-1 = Standard Product

Resistance Code

Optional Suffix Letter

M = Panel Mount (Factory Installed)

See page 81 for RJ22 ordering information.
Consult factory for other available options.

SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

Machine Screw Mounting

Torque...................................12 oz-in. max.
Marking

3252 ................Manufacturer’s trademark,

resistance code, wiring diagram,

date code, manufacturer’s model

number and style

RJ22 .......................Mil-spec part number

Standard Packaging

X, P&W Styles .................25 pcs. per tube
L Style ..............................25 pcs. per bag

Adjustment Tool ..................................H-90

*”FLUORINERT” IS A REGISTERED TRADEMARK OF 3M CO.

3260/RT26 - 1/4” Square Trimming Potentiometer

Specifications are subject to change without notice.

Nominal

Resistance

Resolution

(Ohms)

Code

(Percent)

100

1.90

200

1.50

500

1.23

100

101

1.00

200

201

0.94

500

501

0.58

1,000

102

0.50

2,000

202

0.45

5,000

502

0.34

10,000

103

0.29

20,000

203

0.28

25,000

253

0.23

.89

(.035)

1.27

(.050)

6.35

.51

(.250

.020)

4.78

.38

(.188

.015)

.76

(.030)

1.02

.38

(.040

.015)

4.32

.38

(.170

.015)

.41

.03

(.016

.001)

3260H/RT26 "X" Style
Common Dimensions

1 2 3

6.35

.51

(.250

.020)

1.27

(.050)

2.54

(.100)

2.54

(.100)

2.54

(.100)

DIA.

ADJ. SLOT
1.78
(.070)
.51
(.020)
.51
(.020)

WIDE

DEEP

DIA.

3260W/RT26

1 2 3

.89

(.035)

6.35

.51

(.250

.020)

4.32

.38

(.170

.015)

1.27

(.050)

1.27

(.050)

Features

■

Multiturn / Wirewound / Industrial /
Sealed

■

Listed on the QPL for style RT26 per
MIL-R-27208

Electrical Characteristics

Standard Resistance Range

3260 .................................10 to 25K ohms
RT26 ..................................10 to 5K ohms

(see standard resistance table)

Resistance Tolerance ...................±5% std.

(tighter tolerance available)

Absolute Minimum Resistance

3260..........................0.1% or 1 ohm max.

(whichever is greater)

RT26 .......................0.25% or 1 ohm max.

(whichever is greater)

Noise ..........................100 ohms ENR max.
Resolution...................See resistance table
Insulation Resistance ....................500 vdc.

.................................1,000 megohms min.

Dielectric Strength

Sea Level ......................................600 vac
80,000 Feet...................................250 vac

Adjustment Angle..................11 turns nom.

Environmental Characteristics

Power Rating

85°C ...........................................0.25 watt
150°C ..............................................0 watt

Temperature Range

3260................................-65°C to +150°C
RT26 ...............................-55°C to +150°C

Temperature Coefficient

3260........................................±70ppm/°C
RT26 .......................................±50ppm/°C

Seal Test ............................85°C Fluorinert*
Humidity............MIL-STD-202 Method 106

3260..............(2%

∆

TR, 100 Megohms IR)

RT26 ...............(1%

∆

TR, 10 Megohms IR)

Vibration

3260.............................30G (1%

∆

TR; 1%

+ resolution

∆

VR)

RT26 ............................20G (1%

∆

TR; 1%

+ resolution

∆

VR)

Shock .................................................100G

(1%

∆

TR; 1% + resolution

∆

VR)

Load Life ....1,000 hours 0.25 watt @ 85°C

3260 .................(2%

∆

TR; 500 ohms ENR)

RT26 ......(2%

∆

TR; 2% + resolution

∆

VR)

Rotational Life ............................200 cycles

3260 .................(2%

∆

TR; 500 ohms ENR)

RT26...........................................(2%

∆

TR)

CLOCKWISE

CCW

WIPER

Standard Resistance Table

Popular values listed in boldface. Special
resistances available.

How To Order

3260 H - 1 - 502

Model

Style

Standard or Modified

Product Indicator

-1 = Standard Product

Resistance Code

See page 81 for RT26 ordering information.
Consult factory for other available options.

AVAILABLE

THROUGH

DISTRIBUTION

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

Physical Characteristics

Torque..................................3.0 oz-in. max.
Mechanical Stops......................Wiper idles
Terminals

3260 ..........Solderable printed circuit pins
RT26...............MIL-STD-202; Method 208

Weight ..........................................0.015 oz.
Marking

3260 ................Manufacturer’s trademark,

resistance code, wiring diagram,

date code, manufacturer’s model

number and style

RT26 .......................Mil-spec part number

Wiper ...................................Set at CW end
Flammability .................................UL 94V-0
Standard Packaging .........50 pcs. per tube
Adjustment Tool ..................................H-90

*”FLUORINERT” IS A REGISTERED TRADEMARK OF 3M CO.

SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

3262/RJ26/RJR26 - 1/4” Trimming Potentiometer

Specifications are subject to change without notice.

Features

■

Multiturn / Cermet / Industrial / Sealed

■

Listed on the QPL for style RJ26 per
MIL-R-22097 and RJR26 per

High-Rel MIL-R-39035

■

Patent #4427966 drive mechanism

Electrical Characteristics

Standard Resistance Range

........................................10 to 1 megohm

(see standard resistance table)

Resistance Tolerance .................±10% std.

(tighter tolerance available)

Absolute Minimum Resistance..........1% or

2 ohms max. (whichever is greater)

Contact Resistance Variation .........3.0% or

3 ohms max. (whichever is greater)

Adjustability

Voltage..........................................±0.02%
Resistance ....................................±0.05%

Resolution.........................................Infinite
Insulation Resistance ....................500 vdc.

1,000 megohms min.

Dielectric Strength

Sea Level ......................................600 vac
80,000 Feet...................................250 vac

Effective Travel......................12 turns nom.

Environmental Characteristics

Power Rating

(3262 300 volts max.;
RJ26/RJR26 200 volts max.)

85°C ...........................................0.25 watt
150°C ..............................................0 watt

Temperature Range ..........-65°C to +150°C
Temperature Coefficient .........±100ppm/°C
Seal Test ............................85°C Fluorinert*
Humidity

3262 ................MIL-STD-202 Method 103

96 hours (2%

∆

TR, 100 Megohms IR)

RJ26 ................MIL-STD-202 Method 106

96 hours (1%

∆

TR, 10 Megohms IR)

RJR26 .............MIL-STD-202 Method 106

96 hours (1%

∆

TR, 100 Megohms IR)

Vibration

3262 ....................30G (1%

∆

TR; 1%

∆

VR)

RJ26/RJR26........20G (1%

∆

TR; 1%

∆

VR)

Shock..................100G (1%

∆

TR; 1%

∆

VR)

Load Life

3262 .........1,000 hours 0.25 watt @ 85°C

(3%

∆

TR; 3% or 3 ohms,

whichever is greater, CRV)

RJ26 .........1,000 hours 0.25 watt @ 85°C

(2%

∆

TR; 1%

∆

VR)

RJR26.....10,000 hours 0.25 watt @ 85°C

(3%

∆

TR)

Rotational Life ............................200 cycles

3262 ..................(2%

∆

TR; 3% or 3 ohms,

whichever is greater, CRV)

RJ26/RJR26 ...............................(2%

∆

TR)

Physical Characteristics

Torque..................................3.0 oz-in. max.
Mechanical Stops......................Wiper idles
Terminals

3262 .................................Solderable pins
RJ26/RJR26 ...MIL-STD-202; Method 208

CLOCKWISE

CCW

WIPER

4.78

.38

(.188

.015)

.46

.025

(.018

.001)

1 2 3

.76

(.030)

1.02

(.040)

3262W/RJ26/RJR26
Common Dimensions

1.52

.38*

(.060

.015)

1 2 3

.76

(.030)

1.02

(.040)

3262X/RJ26/RJR26

1.02*

(.040)

6.35

.51

(.250

.020)

6.35

.51

(.250

.020)

4.32

.38

(.170

.015)

2.54

(.100)

2.54

(.100)

1.02

(.040)

1.02

(.040)

2.54

(.100)

2.54

(.100)

2.54

(.100)

DIA.

ADJ. SLOT
1.78
(.070)
.51
(.020)
.64
(.025)

WIDE

DEEP

DIA.

4.70

(.185)

3262P/RJ26/RJR26

1 2 3

1.02

(.040)

.64

(.025)

.64

(.025)

2.54

(.100)

2.54

(.100)

2.54

(.100)

How To Order

3262 P - 1 - 103

Model

Style

Standard or Modified

Product Indicator

-1 = Standard Product

Resistance Code

See page 82 for RJ26/RJR26 ordering
information.

Consult factory for other available options.

Resistance

(Ohms)

Code

100

200

500

100

101

200

201

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

25,000

253

50,000

503

100,000

104

200,000

204

250,000

254

500,000

504

1,000,000

105

Standard Resistance Table

Popular values listed in boldface. Special
resistances available.

SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

AVAILABLE

THROUGH

DISTRIBUTION

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

Physical Characteristics (cont.)

Weight ..........................................0.015 oz.
Marking

3262 ................Manufacturer’s trademark,

resistance code, wiring diagram,

date code, manufacturer’s model

number and style

RJ26/RJR26 ...........Mil-spec part number

Wiper................Positioned at 50% nominal
Flammability ...............................U.L. 94V-0
Standard Packaging .........50 pcs. per tube
Adjustment Tool ..................................H-90

*”FLUORINERT” IS A REGISTERED TRADEMARK OF 3M CO.

*Common dimensions

.46

.03

(.018

.001)

1 2 3

.76

(.030)

3266W
Common Dimensions

4.32

(.170)

.38

(.015)

1.52

(.060)

.38

(015)

1 2 3

3266P

3266X

1 2 3

3.18

(.125)

2.16

(.085)

3266Y

4.32

(.170)

1 2 3

4.32

(.170)

1.02
(.040)

0.38

(.015)

3266Z

TYP.*

6.35

(.250)

6.35

(.250)

1.02

(.040)

1.02

0.25

(.040

.010)

1.02

(.040 )

4.32

(.170)

4.32

.38*

(.170

.015)

4.78

.38*

(.188

.015)

4.32

.38

(.170

.015)

6.85

.51

(.270

.020)

6.85

.51

(.270

.020)

TYP.*

1.02

(.040)

.76*

(.030)

1.02

(.040)

1.02

(.040)

1.02

(.040)

1.02

(.040)

1.02

(.040)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

1.02

(.040)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

.76

(.030)

.76

(.030)

MIN.*

1.52

.38*

(.060

.015)

1.52

.38*

(.060

.015)

6.85

.51

(.270

.020)

1.52

.38*

(.060

.015)

6.85

.51

(.270

.020)

3.18

(.125)

2.16

(.085)

MIN.

0.38

(.015)

MIN.

DIA.*

ADJ. SLOT
1.78
(.070)
.56
(.022)
.64
(.025)

WIDE

DEEP

DIA.

3266 - 1/4” Square Trimming Potentiometer

Specifications are subject to change without notice.

Features

■

Multiturn / Cermet / Industrial / Sealed

■

Standoffs allow thorough PC board
washing

■

Tape and reel packaging available
(see page 70 for details)

■

Patent #4427966 drive mechanism

Electrical Characteristics

Standard Resistance Range

....................................10 to 1 megohm

(see standard resistance table)

Resistance Tolerance .............±10% std.
Absolute Minimum Resistance

...............................1% or 2 ohms max.

(whichever is greater)

Contact Resistance Variation

............................3.0% or 3 ohms max.

(whichever is greater)

Adjustability

Voltage......................................±0.02%
Resistance ................................±0.05%

Resolution.....................................Infinite
Insulation Resistance ................500 vdc.

1,000 megohms min.

Dielectric Strength

Sea Level ..................................600 vac
80,000 Feet...............................250 vac

Effective Travel..................12 turns nom.

Environmental Characteristics

Power Rating (300 volts max.)

70°C .......................................0.25 watt
150°C ..........................................0 watt

Temperature Range ......-55°C to +150°C
Temperature Coefficient .....±100ppm/°C
Seal Test ........................85°C Fluorinert*
Humidity........MIL-STD-202 Method 103

96 hours (2%

∆

TR, 10 Megohms IR)

Vibration............30G (1%

∆

TR; 1%

∆

VR)

Shock..............100G (1%

∆

TR; 1%

∆

VR)

Load Life ....1,000 hours 0.25 watt 70°C

(3%

∆

TR; 3% CRV)

Rotational Life ........................200 cycles

(4%

∆

TR; 3% or 3 ohms,

whichever is greater, CRV)

Physical Characteristics

Torque .............................3.0 oz-in. max.
Mechanical Stops..................Wiper idles
Terminals ........................Solderable pins
Weight ......................................0.015 oz.
Marking ...........................Manufacturer’s

trademark, resistance code,

wiring diagram, date code,

manufacturer’s model

number and style

Wiper ...........Positioned at 50% nominal
Flammability ...........................U.L. 94V-0
Standard Packaging .....50 pcs. per tube
Adjustment Tool ..............................H-90

CLOCKWISE

CCW

WIPER

How to Order

3266 W - 1 - 103

Model

Style

Standard or Modified

Product Indicator

-1 = Standard Product

Resistance Code

Consult factory for other available options.

Resistance

(Ohms)

Code

100

200

500

100

101

200

201

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

25,000

253

50,000

503

100,000

104

200,000

204

250,000

254

500,000

504

1,000,000

105

Standard Resistance Table

Popular values listed in boldface. Special
resistances available.

AVAILABLE

THROUGH

DISTRIBUTION

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

*”FLUORINERT” IS A REGISTERED TRADEMARK OF 3M CO.

SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

*Common dimensions

Specifications are subject to change without notice.

.46

.03

(.018

.001)

1 2 3

.76

(.030)

3266W
Common Dimensions

.38

(.015)

1.52

(.060)

.38

(015)

1 2 3

3266P

3266X

TYP.*

6.35

(.250)

4.32

.38*

(.170

.015)

4.78

.38*

(.188

.015)

4.32

.38

(.170

.015)

6.85

.51

(.270

.020)

TYP.*

1.02

(.040)

.76*

(.030)

1.02

(.040)

1.02

(.040)

1.02

(.040)

1.02

(.040)

1.02

(.040)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

.76

(.030)

.76

(.030)

MIN.*

1.52

.38*

(.060

.015)

DIA.*

ADJ. SLOT
1.78
(.070)
.56
(.022)
.64
(.025)

WIDE

DEEP

DIA.

3266-LTC - 1/4” Square Trimming Potentiometer

Features

■

Low TCR

■

Multiturn / Cermet / Industrial / Sealed

■

Standoffs allow thorough PC board
washing

■

Patent #4427966 drive mechanism

Applications

■

Rheostat applications with wiper currents
less than 25 microamps

■

Process control instrumentation

■

Power supplies

Electrical Characteristics

Standard Resistance Range

.....................................2K to 25K ohms

(see standard resistance table)

Resistance Tolerance .............±10% std.
Absolute Minimum Resistance

...............................1% or 2 ohms max.

(whichever is greater)

Contact Resistance Variation

............................3.0% or 3 ohms max.

(whichever is greater)

Adjustability

Voltage......................................±0.02%
Resistance ................................±0.05%

Resolution.....................................Infinite
Insulation Resistance ................500 vdc.

1,000 megohms min.

Dielectric Strength

Sea Level ..................................600 vac
80,000 Feet...............................250 vac

Effective Travel..................12 turns nom.

Environmental Characteristics

Power Rating (300 volts max.)

70°C .......................................0.25 watt
150°C ..........................................0 watt

Temperature Range

....................................-55°C to +150°C

Temperature Coefficient

End to End ..........................±20ppm/°C
Through the Wiper ..............±50ppm/°C

Seal Test ........................85°C Fluorinert*
Humidity........MIL-STD-202 Method 103

96 hours (2%

∆

TR, 10 Megohms IR)

Vibration............30G (1%

∆

TR; 1%

∆

VR)

Shock..............100G (1%

∆

TR; 1%

∆

VR)

Load Life ....1,000 hours 0.25 watt 70°C

(3%

∆

TR; 3% CRV)

Rotational Life ........................200 cycles

(4%

∆

TR; 3% or 3 ohms,

whichever is greater, CRV)

Physical Characteristics

trademark, resistance code,

wiring diagram, date code,

manufacturer’s model

number and style

Wiper ...........Positioned at 50% nominal
Flammability ...........................U.L. 94V-0
Standard Packaging .....50 pcs. per tube
Adjustment Tool ..............................H-90

CLOCKWISE

CCW

WIPER

Resistance

(Ohms)

Code

2,000

202

5,000

502

10,000

103

20,000

203

25,000

253

Standard Resistance Table

Popular values listed in boldface. Special
resistances available.

AVAILABLE

THROUGH

DISTRIBUTION

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

*”FLUORINERT” IS A REGISTERED TRADEMARK OF 3M CO.

*Common dimensions

How To Order

3266 W - LTC - 103

Model

Style

Product Indicator

Resistance Code

Consult factory for other available options.

NOTE: TCR through the wiper applies when 40% or more
of the resistance element is in the circuit.

Specifications are subject to change without notice.

3269 - 1/4” Square SMD Trimming Potentiometer

Electrical Characteristics

Standard Resistance Range

....................................10 to 1 megohm

(see standard resistance table)

Resistance Tolerance .............±10% std.

(closer tolerance available)

Absolute Minimum Resistance

...............................1% or 2 ohms max.

(whichever is greater)

Contact Resistance Variation

............................3.0% or 3 ohms max.

(whichever is greater)

Adjustability

Voltage......................................±0.02%
Resistance ................................±0.05%

Resolution.....................................Infinite
Insulation Resistance ................500 vdc.

1,000 megohms min.

Dielectric Strength

Sea Level ..................................600 vac
80,000 Feet...............................250 vac

Effective Travel..................12 turns nom.

Environmental Characteristics

Maximum Exposure (Temp/Time)

.................................... +245°C/10 sec.

Power Rating (300 volts max.)

85°C .......................................0.25 watt
150°C ..........................................0 watt

Temperature Range ......-65°C to +150°C
Temperature Coefficient .....±100ppm/°C
Seal Test ........................85°C Fluorinert*
Humidity........MIL-STD-202 Method 106

(2%

∆

TR; IR 100 Megohms)

Vibration............30G (1%

∆

TR; 1%

∆

VR)

Shock..............100G (1%

∆

TR; 1%

∆

VR)

Load Life...1,000 hours 0.25 watt @ 85°C

(3%

∆

TR; 3% or 3 ohms

whichever is greater, CRV)

Rotational Life ........................200 cycles

(2%

∆

TR; 3% or 3 ohms,

whichever is greater, CRV)

Physical Characteristics

trademark, resistance code,

wiring diagram, date code,

manufacturer’s model

number and style

Standard Packaging .....50 pcs. per tube
Adjustment Tool ..............................H-90

Features

■

Stable, infinite resolution cermet element

■

Vertical and horizontal adjust styles

■

Optional packaging on embossed tape

■

Compatible with surface mount
manufacturing processes

How To Order

3269 X - 1 - 103 G

Model

Style

Standard Product

Resistance Code

Optional Suffix Letter

G= Embossed Tape

“P” Style - 750 pcs./13˝ reel
“W, X” Style - 500 pcs./13˝ reel

Resistance

(Ohms)

Code

100

200

500

100

101

200

201

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

25,000

253

50,000

503

100,000

104

200,000

204

250,000

254

500,000

504

1,000,000

105

Standard Resistance Table

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

*”FLUORINERT” IS A REGISTERED TRADEMARK OF 3M CO.

CLOCKWISE

CCW

WIPER

SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

3269P
Common Dimensions

1.02

(.040)

1.78
(.070)

WIDE

DEEP

DIA.

.51

(.020)

.51

(.020)

ADJ. SLOT

1.52

.38

(.060

.015)

5.21

(.205)

6.35

.51

(.250

.020)

1.02

(.040)

TYP

3 PLCS.

2.54

(.015) TYP. 3 PLCS.

2.54

(.100)

2.54

(.100)

.46

.03

(.018

.001)

DIA. TYP.

3269W

.43

.05

(.017

.002)

DIA. TYP.

1.52

.38

(.060

.015)

1.02

(.040)

6.35

.51

(.250

.020)

SQ.

1.02

(.040)

7.37

(.290)

2.54

(.100)

2.54

(.100)

2.54

(.015)

TYP.

3 PLCS.

4.32

(.170)

1.02

(.040)

TYP

3269X

1.02

(.040)

1.52

.38

(.060

.015)

1.02

(.040)

7.37

(.290)

2.29

(.090)

TYP.

3 PLCS.

2.54

(.100)

2.54

(.100)

RECOMMENDED PCB
LAYOUT - "P"

RECOMMENDED PCB
LAYOUT - "W" & "X"

1.19

(.047)

TYP.

3.30

(.130)

TYP.

9.70

(.382)

2.54

(.100)

2.54

(.100)

1.19

(.047)

TYP.

2.79

(.110)

TYP.

7.62

(.300)

Specifications are subject to change without notice.

TAPE

330.2

5.08

(13.000

.200)

16.51

2.03/ -.000

(.650

.080/ -.000)

REEL

7.50

.10

(.295

.004)

12.00

.10

(.472

.004)

1.5 + .10/ –.00

(.059 + .004/ –.000)

4.00

.01

(.157

.004)

2.00

.05

(.079

.002)

1.75

.10

(.069

.004)

DIA.

13.0

.51

(.512

.020)

17.78

.25

(.700

.010)

EQUAL SPACED 3 PLCS.

DIA.

99.06

1.02

(3.90

.040)

18.69

.79

(.736

.031)

DIA.

16.0

.10

(.630

.004)

EMBOSSED
CARRIER TAPE

COVER TAPE

TAPE

330.2

5.08

(13.000

.200)

16.51

2.03/ -.000

(.650

.080/ -.000)

REEL

7.50

.10

(.295

.004)

12.00

.10

(.472

.004)

1.5 + .10/ –.00

(.059 + .004/ –.000)

4.00

.01

(.157

.004)

2.00

.05

(.079

.002)

1.75

.10

(.069

.004)

DIA.

13.0

.51

(.512

.020)

17.78

.25

(.700

.010)

EQUAL SPACED 3 PLCS.

DIA.

99.06

1.02

(3.90

.040)

18.69

.79

(.736

.031)

DIA.

16.0

.10

(.630

.004)

EMBOSSED
CARRIER TAPE

COVER TAPE

Packaging Specifications

(P Style)

Packaging Specifications

(W & X Styles)

Units packaged 750 pieces per reel.

Units packaged 500 pieces per reel.

3269 - Packaging Specifications

Specifications are subject to change without notice.

3290/RT24/RTR24 - 3/8” Square Trimming Potentiometer

Nominal

Resistance

Resolution

(Ohms)

Code

(Percent)

100

1.11

200

0.93

500

0.62

100

101

0.60

200

201

0.54

500

501

0.42

1,000

102

0.33

2,000

202

0.26

5,000

502

0.20

10,000

103

0.17

20,000

203

0.14

25,000

253

0.13

50,000

503

0.11

3290H/RT24X/RTR24X
Common Dimensions

3290P/RT24/RTR24

4.75

(.187)

2.54

(.100)

4.75

(.187)

2.54

(.100)

2.54

(.100)

3.81

(.150)

1.27*

(.050)

1.52

(.060)

1.91

(.075)

1.02

(.040)

9.53

.38*

(.375

.015)

3 2 1

2.54

(.100)

4.75

(.187)

9.53

.38

(.375

.015)

2.54

(.100)

8.00

.38

(.315

.015)

TYP.*

.51

.03

(.020

.001)

DIA. TYP.*

ADJ. SLOT
1.52
(.060)
.51
(.020)
.64
(.025)

WIDE

DEEP

DIA.

3290W/RT24/RTR24

2.54

(.100)

2.54

(.100)

1.19

(.075)

Features

■

Multiturn/ Wirewound / Industrial / Sealed

■

Listed on the QPL for style RT24 per
MIL-R-27208 and RTR24 per

High-Rel MIL-R-39015

■

Panel mount option available
(see page 73 for details)

Electrical Characteristics

Standard Resistance Range

3290 .................................10 to 50K ohms
RT24 ................................10 to 10K ohms
RTR24 ............................500 to 10K ohms

(see standard resistance table)

Resistance Tolerance ...................±5% std.

(tighter tolerance available)

Absolute Minimum Resistance

..................................0.1% or 1 ohm max.

(whichever is greater)

Noise ..........................100 ohms ENR max.
Resolution

.................(see standard resistance table)

Insulation Resistance ....................500 vdc.

1,000 megohms min.

Dielectric Strength

Sea Level ...................................1,000 vac
80,000 Feet...................................350 vac

Adjustment Travel .................25 turns nom.

Environmental Characteristics

Power Rating @ 85°C

3290 .............................................1.0 watt
RT24/RTR24 ...............................0.75 watt

Power Rating @ 150°C ......................0 watt
Temperature Range ..........-65°C to +150°C
Temperature Coefficient ...........±50ppm/°C
Seal Test ............................85°C Fluorinert*
Humidity

3290 ................MIL-STD-202 Method 106

96 hours (2%

∆

TR; 100 Megohms IR)

RT24 ...............(1%

∆

TR; 10 Megohms IR)

RTR24...........(1%

∆

TR; 100 Megohms IR)

Vibration

3290....................................................30G

(1%

∆

TR; 0.5% + resolution

∆

VR)

RT24/RTR24 .......................................20G

(1%

∆

TR; 0.5% + resolution

∆

VR)

Shock .................................................100G

(1%

∆

TR; 0.5% + resolution

∆

VR)

Load Life

3290 ...........1,000 hours 1.0 watt @ 85°C

(2%

∆

TR; 500 ohms ENR)

RT24 .........1,000 hours 0.75 watt @ 85°C

(2%

∆

TR; 2% + resolution

∆

VR)

RTR24.....10,000 hours 0.75 watt @ 85°C

(3% + resolution

∆

VR)

Rotational Life ............................200 cycles

3290 .................(2%

∆

TR; 500 ohms ENR)

RT24/RTR24...............................(2%

∆

TR)

Physical Characteristics

Torque..................................5.0 oz-in. max.
Mechanical Stops......................Wiper idles
Terminals

3290 ..........Solderable printed circuit pins
RT24/RTR24...MIL-STD-202; Method 208

Weight ..........................................0.025 oz.

CLOCKWISE

CCW

WIPER

Standard Resistance Table

Popular values listed in boldface. Special
resistances available.

How to Order

3290 H - 1 - 103 M

Model

Style

Standard or Modified

Product Indicator

-1 = Standard Product

Resistance Code

Optional Suffix Letter

M = Panel Mount

(Factory Installed)

See page 81 for RT24/RTR24 ordering
information.
Consult factory for other available options.

AVAILABLE

THROUGH

DISTRIBUTION

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

Physical Characteristics (cont.)

Marking

3290 ................Manufacturer’s trademark,

resistance code, wiring diagram,

date code, manufacturer’s model

number and style

RT24/RTR24 ...........Mil-spec part number

*”FLUORINERT” IS A REGISTERED TRADEMARK OF 3M CO.

SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

Common dimensions

Specifications are subject to change without notice.

3292 - 3/8” Square Trimming Potentiometer

Features

■

Multiturn / Cermet / Industrial / Sealed

■

Optional panel mount available
(see page 73 for details)

■

Patent #4427966 drive mechanism

■

Thin body profile

Electrical Characteristics

Standard Resistance Range

....................................10 to 1 megohm

(see standard resistance table)

Resistance Tolerance .............±10% std.

(tighter tolerance available)

Absolute Minimum Resistance

...............................1% or 2 ohms max.

(whichever is greater)

Contact Resistance Variation

3292....................1.0% or 3 ohms max.

(whichever is greater)

Adjustability

Voltage......................................±0.01%
Resistance ................................±0.05%

Resolution.....................................Infinite
Insulation Resistance ................500 vdc.

1,000 megohms min.

Dielectric Strength

Sea Level ...............................1,000 vac
80,000 Feet...............................400 vac

Effective Travel..................25 turns nom.

Environmental Characteristics

Power Rating (400 volts max.)

85°C .........................................0.5 watt
150°C ..........................................0 watt

Temperature Range ......-65°C to +150°C
Temperature Coefficient .....±100ppm/°C
Seal Test ........................85°C Fluorinert*

(pin styles only)

Humidity........MIL-STD-202 Method 103

96 hours (1%

∆

TR, 100 Megohms IR)

Vibration............30G (1%

∆

TR; 1%

∆

VR)

Shock..............100G (1%

∆

TR; 1%

∆

VR)

Load Life ..1,000 hours 0.5 watt @ 85°C

(2%

∆

TR; 3% or 3 ohms,

whichever is greater, CRV)

Rotational Life ........................200 cycles

(2%

∆

TR; 3% or 3 ohms,

whichever is greater, CRV)

Physical Characteristics

Torque .............................5.0 oz-in. max.
Mechanical Stops..................Wiper idles
Terminals

..............Solderable printed circuit pins

Weight ......................................0.025 oz.
Machine Screw Mounting
Torque ..............................12 oz-in. max.
Marking

....................Manufacturer’s trademark,

resistance code, wiring diagram, date

code, manufacturer’s model number

and style

Wiper ...........Positioned at 50% nominal
Flammability ...........................U.L. 94V-0
Standard Packaging

P,W &X Styles ..............50 pcs. per tube
L Style ..........................50 pcs. per bag

Adjustment Tool ..............................H-90

GREEN
CW

CLOCKWISE

YELLOW
CCW

WIPER

RED

2.54

(.010)
MIN.*

8.26

.635

(.325

.025)

3292X

3 2

1.27

(.050)

9.53

.38

(.375

.015)

.51

.03

(.020

.001)

DIA. TYP.

TYP.

9.53

.38

(.375

.015)

TYP.

2.54

(.100)

4.75

.51*

(.187

.020)

2.54

(.100)

1.52

(.060)

1.02

(.040)

1.91

(.075)

How To Order

3292 W - 1 - 103 M

Model

Style

Standard or Modified

Product Indicator

-1 = Standard Product

Resistance Code

Optional Suffix Letter

M = Panel Mount Model 3292L, W & X

(Factory Installed)

Consult factory for other available options.

Resistance

(Ohms)

Code

100

200

500

100

101

200

201

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

25,000

253

50,000

503

100,000

104

200,000

204

250,000

254

500,000

504

1,000,000

105

Standard Resistance Table

Popular values listed in boldface. Special
resistances available.

8.26

.635*

(.325

.025)

3292W

1 2

10.64

(.419)

152.4

(6.00)

MIN. LENGTH

WIRE SIZE: 30AWG

3292L
Common Dimensions

3292P

8.26

.635

(.325

.025)

4.75

.51

(.187

.020)

.254

(.010)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

1.91

(.075)

9.53

.38

(.375

.015)

9.53

.38

(.375

.015)

.381 + .25/-.13*

(.150 +.010/-.005)

4.75

.51*

(.187

.020)

1.02

(.040)

1.57

(.062)

MIN.

ADJ. SLOT
1.52
(.060)
.51
(.020)
.64
(.025)

WIDE

DEEP

DIA.

ADJ. SLOT
2.29
(.090)
.56
(.022)
.76
(.030)

WIDE

DEEP

DIA.

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

*”FLUORINERT” IS A REGISTERED TRADEMARK OF 3M CO.

SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

Common dimensions

Specifications are subject to change without notice.

3296 - 3/8” Square Trimming Potentiometer

Features

■

Multiturn / Cermet / Industrial / Sealed

■

5 terminal styles

■

Tape and reel packaging available

■

Chevron seal design

■

Listed on the QPL for style RJ24 per
MIL-R-22097 and RJR24 per High-Rel
Mil-R-39035

Electrical Characteristics

Standard Resistance Range

..................................10 to 5 megohms

(see standard resistance table)

Resistance Tolerance .............±10% std.

(tighter tolerance available)

Absolute Minimum Resistance

...............................1% or 2 ohms max.

(whichever is greater)

Contact Resistance Variation

............................1.0% or 3 ohms max.

(whichever is greater)

Adjustability

Voltage......................................±0.01%
Resistance ................................±0.05%

Resolution.....................................Infinite
Insulation Resistance ................500 vdc.

1,000 megohms min.

Dielectric Strength

Sea Level ..................................900 vac
70,000 Feet...............................350 vac

Effective Travel..................25 turns nom.

Environmental Characteristics

Power Rating (300 volts max.)

70°C .........................................0.5 watt
125°C ..........................................0 watt

Temperature Range

....................................-55°C to +150°C

Temperature Coefficient

..........................................±100ppm/°C

Seal Test ........................85°C Fluorinert*
Humidity........MIL-STD-202 Method 103

96 hours

(2%

∆

TR, 10 Megohms IR)

Vibration............20G (1%

∆

TR; 1%

∆

VR)

Shock..............100G (1%

∆

TR; 1%

∆

VR)

Load Life

................1,000 hours 0.5 watt @ 70°C

(3%

∆

TR; 3% or 3 ohms,

whichever is greater, CRV)

Rotational Life ........................200 cycles

(4%

∆

TR; 3% or 3 ohms,

whichever is greater, CRV)

Physical Characteristics

Torque .............................3.0 oz-in. max.
Mechanical Stops..................Wiper idles
Terminals ........................Solderable pins
Weight ........................................0.03 oz.
Marking ...........................Manufacturer’s

trademark, resistance code,

wiring diagram, date code,

manufacturer’s model

number and style

Wiper ..........Positioned at 50% nominal
Flammability ..........................U.L. 94V-0
Standard Packaging .....50 pcs. per tube
Adjustment Tool ..............................H-90

CLOCKWISE

CCW

WIPER

10.03
(.395)

1.52

(.060)

.38

(.015)

6.40

1.32

(.252

.052)

.51

.03

(.020

.001)

1.12

(.044)

4.83

.13

(.190

.005)

9.53

(.375)

1.09

(.043)

Common Dimensions

3296P

5.23

(.206)

3296W

2.41

(.095)

3296X

2.54

(.100)

8.26

.64

(.325

.025)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.41

(.095)

MIN.

DIA.

ADJ. SLOT
2.29
(.090)
.56
(.022)
.76
(.030)

WIDE

DEEP

DIA.

3296Y (Commercial Only)

1.14

(.045)

3296Z (Commercial Only)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

1.14

(.045)

How To Order

3296 W - 1 - 103

Model

Style

Standard or Modified

Product Indicator

-1 = Standard Product

Resistance Code

Consult factory for other available options.

Resistance

(Ohms)

Code

100

200

500

100

101

200

201

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

25,000

253

50,000

503

100,000

104

200,000

204

250,000

254

500,000

504

1,000,000

105

2,000,000

205

Standard Resistance Table

AVAILABLE

THROUGH

DISTRIBUTION

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

*”FLUORINERT” IS A REGISTERED TRADEMARK OF 3M CO.

Popular values listed in boldface. Special
resistances available.

Specifications are subject to change without notice.

3296-LTC - 3/8” Square Trimming Potentiometer

Features

■

Low TCR

■

Multiturn / Cermet / Industrial / Sealed

■

3 terminal styles

■

Chevron seal design

Applications

■

Rheostat applications with wiper currents
less than 25 microamps

■

Process control instrumentation

■

Power supplies

Electrical Characteristics

Standard Resistance Range

.....................................2K to 25K ohms

(see standard resistance table)

Resistance Tolerance .............±10% std.

(tighter tolerance available)

Absolute Minimum Resistance

...............................1% or 2 ohms max.

(whichever is greater)

Contact Resistance Variation

............................1.0% or 3 ohms max.

(whichever is greater)

Adjustability

Voltage......................................±0.01%
Resistance ................................±0.05%

Resolution.....................................Infinite
Insulation Resistance ................500 vdc.

1,000 megohms min.

Dielectric Strength

Sea Level ..................................900 vac
70,000 Feet...............................350 vac

Effective Travel..................25 turns nom.

Environmental Characteristics

Power Rating (300 volts max.)

70°C .........................................0.5 watt
125°C ..........................................0 watt

Temperature Range

....................................-55°C to +150°C

Temperature Coefficient

End to End ..........................±20ppm/°C
Through the Wiper ..............±50ppm/°C

Seal Test ........................85°C Fluorinert*
Humidity........MIL-STD-202 Method 103

96 hours

(2%

∆

TR, 10 Megohms IR)

Vibration............20G (1%

∆

TR; 1%

∆

VR)

Shock..............100G (1%

∆

TR; 1%

∆

VR)

Load Life

................1,000 hours 0.5 watt @ 70°C

(3%

∆

TR; 3% or 3 ohms,

whichever is greater, CRV)

Rotational Life ........................200 cycles

(4%

∆

TR; 3% or 3 ohms,

whichever is greater, CRV)

Physical Characteristics

Torque .............................3.0 oz-in. max.
Mechanical Stops..................Wiper idles
Terminals ........................Solderable pins
Weight ........................................0.03 oz.
Marking ...........................Manufacturer’s

trademark, resistance code,

wiring diagram, date code,

manufacturer’s model

number and style

Wiper ..........Positioned at 50% nominal
Flammability ..........................U.L. 94V-0
Standard Packaging .....50 pcs. per tube
Adjustment Tool ..............................H-90

CLOCKWISE

CCW

WIPER

10.03
(.395)

1.52

(.060)

.38

(.015)

6.40

1.32

(.252

.052)

.51

.03

(.020

.001)

1.12

(.044)

4.83

.13

(.190

.005)

9.53

(.375)

1.09

(.043)

Common Dimensions

3296P

5.23

(.206)

3296W

2.41

(.095)

3296X

2.54

(.100)

8.26

.64

(.325

.025)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.41

(.095)

MIN.

DIA.

ADJ. SLOT
2.29
(.090)
.56
(.022)
.76
(.030)

WIDE

DEEP

DIA.

How To Order

3296 W - LTC - 103

Model

Style

Product Indicator

Resistance Code

Consult factory for other available options.

Resistance

(Ohms)

Code

2,000

202

5,000

502

10,000

103

20,000

203

25,000

253

Standard Resistance Table

AVAILABLE

THROUGH

DISTRIBUTION

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

*”FLUORINERT” IS A REGISTERED TRADEMARK OF 3M CO.

Popular values listed in boldface. Special
resistances available.

NOTE: TCR through the wiper applies when 40% or more
of the resistance element is in the circuit.

Specifications are subject to change without notice.

RJ24/RJR24 - 3/8” Square Trimming Potentiometer

Features

■

Multiturn / Cermet / Industrial / Sealed

■

Standoffs

■

Patent #4427966 drive mechanism

■

Listed on the QPL for style RJ24 per
MIL-R-22097 and RJR24 per High-Rel
Mil-R-39035

Electrical Characteristics

Standard Resistance Range

....................................10 to 1 megohm

(see standard resistance table)

Resistance Tolerance .............±10% std.
Absolute Minimum Resistance

...........................................1 ohm max.

Contact Resistance Variation

............................3.0% or 3 ohms max.

(whichever is greater)

Adjustability

Voltage......................................±0.01%
Resistance ................................±0.05%

Resolution.....................................Infinite
Insulation Resistance ................500 vdc.

1,000 megohms min.

Dielectric Strength

Sea Level ...............................1,000 vac
80,000 Feet...............................400 vac

Effective Travel..................25 turns nom.

Environmental Characteristics

Power Rating (300 volts max.)

85°C .........................................0.5 watt
150°C ..........................................0 watt

Temperature Range

....................................-55°C to +150°C

Temperature Coefficient

..........................................±100ppm/°C

Seal Test ........................85°C Fluorinert*
Humidity........MIL-STD-202 Method 106

RJ24 ........................................96 hours

(1%

∆

TR, 10 Megohms IR)

RJR24......................................96 hours

(1%

∆

TR, 100 Megohms IR)

Vibration............20G (1%

∆

TR; 1%

∆

VR)

Shock..............100G (1%

∆

TR; 1%

∆

VR)

Load Life

RJ24 .......1,000 hours 0.5 watt @ 85°C

(2%

∆

TR; 10%

∆

VR)

RJR24...10,000 hours 0.5 watt @ 85°C

(3%

∆

TR)

Rotational Life........200 cycles (2%

∆

TR)

Physical Characteristics

Torque .............................5.0 oz-in. max.
Mechanical Stops..................Wiper idles
Terminals ......MIL-STD 202, Method 208
Weight ......................................0.025 oz.
Marking ................Mil-spec part number,

date code

Wiper ..........Positioned at 50% nominal
Flammability ..........................U.L. 94V-0
Standard Packaging .....50 pcs. per tube
Adjustment Tool ..............................H-90

CLOCKWISE

CCW

WIPER

10.03
(.395)

1.52

(.060)

.38

(.015)

6.40

1.32

(.252

.052)

.51

.03

(.020

.001)

1.12

(.044)

4.83

.13

(.190

.005)

9.53

(.375)

1.09

(.043)

Common Dimensions

RJ24/RJR24FP

5.23

(.206)

RJ24/RJR24FW

2.41

(.095)

RJ24/RJR24FX

2.54

(.100)

8.26

.64

(.325

.025)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.41

(.095)

MIN.

DIA.

ADJ. SLOT
2.29
(.090)
.56
(.022)
.76
(.030)

WIDE

DEEP

DIA.

Resistance

(Ohms)

Code

100

200

500

100

101

200

201

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

25,000

253

50,000

503

100,000

104

200,000

204

250,000

254

500,000

504

1,000,000

105

Standard Resistance Table

AVAILABLE

THROUGH

DISTRIBUTION

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

*”FLUORINERT” IS A REGISTERED TRADEMARK OF 3M CO.

How To Order

Popular values listed in boldface. Special
resistances available.

See page 81 for Model RJ24, and page
82 for Model RJR24.

Specifications are subject to change without notice.

3296-LC2 - 3/8” Square Trimming Potentiometer

Features

■

High Performance Series 3/8” Square /
Multiturn / Cermet / Industrial / Sealed

■

Thin body profile

■

Sealed to withstand board washing

processes

■

Patent #4427966, #4732802, #4824694

■

Low current applications <50uA

Electrical Characteristics

Standard Resistance Range

.......................500 ohms to 100K ohms

(see standard resistance table)

Resistance Tolerance .............±10% std.
Absolute Minimum Resistance

...............................2 ohms or 1% max.

(whichever is greater)

Contact Resistance Variation

.............................................0.5% max.

Contact Resistance (D.C. mode)

.............................................0.3% max.

D.C. Offset .............................0.5% max.
Adjustability

Voltage........................................±0.1%
Resistance ..................................±0.2%

Insulation Resistance ................500 vdc.

1,000 megohms min.

Dielectric Strength

Sea Level ..................................900 vac
70,000 feet................................350 vac

Adjustment Angle, Electrical

............................................25 ±5 turns

Environmental Characteristics

Power Rating (400 volts max.)

85°C .........................................0.5 watt
125°C ..........................................0 watt

Temperature Range

....................................-55°C to +125°C

Temperature Coefficient

..........................................±100ppm/°C

Humidity.............80-90%, RH, 10 cycles

2% max. TRS, IR 10 megohms

0.2% max. contact resistance shift

Seal Test .......................85° C Flourinert*
Vibration .......................20G - 0.5% VRS

0.2% contact resistance shift

Shock .........................100G - 0.5% VRS

0.2% contact resistance shift

Load Life @ 85°C Rated Power

............................1,000 hours 3% TRS,

0.2% contact resistance

shift - 0.5% CRV

Rotational Life.........200 cycles, 4% TRS

0.2% contact resistance shift

Thermal Shock ...........................5 cycles

2% TRS, 0.5% VRS

0.2% contact resistance shift

Physical Characteristics

Torque .............................3.0 oz-in. max.
Mechanical Stops..................Wiper idles
Terminals ..................Solderable PC pins
Weight ........................................0.03 oz.
Marking ...........................Manufacturer’s

trademark, resistance code

and date code

Wiper ..............................Set at CW end
Flammability ..........................U.L. 94V-0
Standard Packaging ....50 pcs. per tube
Adjustment Tool ..............................H-90

Resistance

(Ohms)

Code

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

25,000

253

50,000

503

100,000

104

Standard Resistance Table

How To Order

3296 W - LC2 - 103

Model

Style

Product Indicator

Resistance Code

Consult factory for other available options.

3296P

3296W

3296X

10.03
(.395)

1.52

(.060)

.38

(.015)

5.97

.89

(.235

.035)

.51

(.020)

1.12

(.044)

4.83

(.190)

9.53

(.375)

1.09

(.043)

Common Dimensions

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

MIN.

DIA.

5.23

(.206)

2.41

(.095)

2.41

(.095)

ADJ. SLOT
2.29
(.090)
.56
(.022)
.76
(.030)

WIDE

DEEP

DIA.

CLOCKWISE

CCW

WIPER

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

*”FLUORINERT” IS A REGISTERED TRADEMARK OF 3M CO.

SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

Specifications are subject to change without notice.

3296-OT1 - 3/8” Square Trimming Potentiometer

Resistance

(Ohms)

Code

100

101

200

201

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

50,000

503

100,000

104

200,000

204

500,000

504

1,000,000

105

Features

■

3/8” Square/ Multiturn / Cermet
Industrial / Sealed

■

Designed for operational amplifier offset
voltage adjustment applications

■

Reduces power supply drift errors

■

Unique center tapped trimming
potentiometer

■

Vertical and horizontal adjust types
available

■

Patent #4427966 drive mechanism

Electrical Characteristics

Standard Resistance Range

(Pin 1 to Pin 3)

........................100 ohms to 1 megohm

(see standard resistance table)

Resistance Tolerance .............±20% std.
Absolute Minimum Resistance

..........................................2 ohms max.

Voltage Output Variation.............+0.25%
Adjustability (VR) ......................±0.025%
Insulation Resistance ................500 vdc.

.............................1,000 megohms min.

Dielectric Strength

Sea Level ..................................900 vac
70,000 Feet...............................350 vac

Effective Electrical Travel, Nom.

.................................................25 turns

Center Tap Resistance .......2 ohms max.
Center Tap Electrical Center............±5%
Center Tap Dead Band ...............0.5 turn

Environmental Characteristics

Power Rating

70°C .........................................0.5 watt
125°C ..........................................0 watt

Temperature Range

....................................-55°C to +125°C

Temperature Stability (

∆

VR)

...........................................±0.5% max.

Seal Test ........................85°C Fluorinert*
Humidity........MIL-STD-202 Method 103

96 hours...................10 megohms min.

Vibration, 20G ..........................±1%

∆

Shock, 100G ............................±1%

∆

Load Life, 1,000 Hours ............±3%

∆

Rotational Life, 200 cycles

...............................................±4%

∆

Physical Characteristics

Torque .............................3.0 oz-in. max.
Mechanical Stops..................Wiper idles
Terminals ........................Solderable pins
Weight ........................................0.03 oz.
Marking ...........................Manufacturer’s

trademark, resistance code,

wiring diagram, date code,

manufacturer’s model

number and style

Flammability ..........................U.L. 94V-0
Standard Packaging

.............................50 pcs. per tube/tray

Adjustment Tool ..............................H-90

Also see Model 3386-OT1, page 62.

3296W-OT1

.94

(.037)

3296X-OT1

10.03
(.395)

1.52

(.060)

.38

(.015)

6.40

1.32

(.252

.052)

.51

(.020)

1.12

(.044)

4.83

(.190)

9.53

(.375)

1.09

(.043)

Common Dimensions

2.54

(.100)

TYP.

MIN.

DIA.

TYP.

2.54

(.100)

2.54

(.100)

2.41

(.095)

2.41

(.095)

.94

(.037)

ADJ. SLOT
2.29
(.090)
.56
(.022)
.76
(.030)

WIDE

DEEP

DIA.

CLOCKWISE

CCW

WIPER

CENTER TAP

How To Order

3296 X - OT1 - 103

Model

Style

Catalog Product

Resistance Code

Standard Resistance Table

Popular values listed in boldface. Special
resistances available.

Suggested Offset Voltage Adjustment Circuit

–V

R1 100K

Ω

BOURNS OFFSET TRIMMER

Ω

100

Ω

INPUT

OUTPUT

OFFSET
ADJUSTMENT
RANGE = ±V (R3/R2)

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

*”FLUORINERT” IS A REGISTERED TRADEMARK OF 3M CO.

SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

Specifications are subject to change without notice.

3299 - 3/8” Square Trimming Potentiometer

Features

■

3/8” Square/ Multiturn / Cermet /
Industrial / Sealed

■

Five popular terminal styles

■

Standoffs

■

Patent #4427966 drive mechanism

Electrical Characteristics

Standard Resistance Range

..................................10 to 2 megohms

(see standard resistance table)

Resistance Tolerance .............±10% std.

(tighter tolerance available)

Absolute Minimum Resistance

...............................1% or 2 ohms max.

(whichever is greater)

Contact Resistance Variation

............................1.0% or 3 ohms max.

(whichever is greater)

Adjustability

Voltage......................................±0.01%
Resistance ................................±0.05%

Resolution.....................................Infinite
Insulation Resistance ................500 vdc.

1,000 megohms min.

Dielectric Strength

Sea Level ..................................900 vac
70,000 Feet...............................350 vac

Effective Travel..................25 turns nom.

Environmental Characteristics

Power Rating (300 volts max.)

70°C .........................................0.5 watt
125°C ..........................................0 watt

Temperature Range ......-55°C to +125°C
Temperature Coefficient .....±100ppm/°C
Seal Test ........................85°C Fluorinert*
Humidity........MIL-STD-202 Method 103

96 hours

(2%

∆

TR, 10 Megohms IR)

Vibration............20G (1%

∆

TR; 1%

∆

VR)

Shock..............100G (1%

∆

TR; 1%

∆

VR)

Load Life

................1,000 hours 0.5 watt @ 70°C

(3%

∆

TR; 3% or 3 ohms,

whichever is greater, CRV)

Rotational Life ........................200 cycles

(4%

∆

TR; 3% or 3 ohms,

whichever is greater, CRV)

Physical Characteristics

Torque .............................3.0 oz-in. max.
Mechanical Stops..................Wiper idles
Terminals ........................Solderable pins
Weight ......................................0.035 oz.
Marking ...........................Manufacturer’s

trademark, resistance code,

wiring diagram, date code,

manufacturer’s model

number and style

Wiper ..............................Set at CW end
Flammability ..........................U.L. 94V-0
Standard Packaging .....50 pcs. per tube
Adjustment Tool ..............................H-90

CLOCKWISE

CCW

WIPER

1.52

(.060)

BOTTOM VIEW

3299P
Common Dimensions

1.09

(.043)

6.10 +.30/-.25

(.240 +.012/-.010)

3299W

1.91

(.075)

3299X

3299Y

3299Z

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

1.91

(.075)

1.91

(.075)

1.91

(.075)

2.54

(.100)

MIN.

2.54

(.100)

2.54

(.100)

2.54

(.100)

.51

(.020)

DIA. TYP.

5.23

(.206)

10.03
(.395)

.38

(.015)

9.53

(.375)

1.12

(.044)

6.22

1.14

(.245

.045)

ADJ. SLOT
2.29
(.090)
.56
(.022)
.64
(.025)

WIDE

DEEP

DIA.

How To Order

3299 W - 1 - 103

Model

Style

Standard or Modified

Product Indicator

-1 = Standard Product

Resistance Code

Consult factory for other available options.

Resistance

(Ohms)

Code

100

200

500

100

101

200

201

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

25,000

253

50,000

503

100,000

104

200,000

204

250,000

254

500,000

504

1,000,000

105

2,000,000

205

Standard Resistance Table

AVAILABLE

THROUGH

DISTRIBUTION

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

*”FLUORINERT” IS A REGISTERED TRADEMARK OF 3M CO.

Popular values listed in boldface. Special
resistances available.

Specifications are subject to change without notice.

3302 - 2mm SMD Trimming Potentiometer

Electrical Characteristics

Standard Resistance Range

..................................200 to 1 megohm

(see standard resistance table)

Resistance Tolerance .............±25% std.
Absolute Minimum Resistance

≤

1K .................................20 ohms max.

>1K .........................................5% max.

Contact Resistance Variation

................................................5% max.

Resolution...................................Infinite

Adjustment Angle....................260° ±20°

Environmental Characteristics

Power Rating (50 VDC max.)

70°C .......................................0.15 watt

Temperature Range

......................................-40°C to +85°C

Temperature Coefficient

..........................................±250ppm/°C

Humidity .....................................95%RH

500 hours

TRS max. ........................................±5%
Load Life

.............@ 70°C rated power 500 hours

TRS ±5%

Rotational Cycling......................10 turns

TRS ±15%

Physical Characteristics

Torque.........................10-150g-cm max.
Mechanical Angle .................Continuous
Marking......................Part marking code
Standard Packaging

...................................2000 pcs./7” reel

Adjustment Tool ..............................H-91

3302W, X-1
2mm Open Frame
for Reflow Soldering

SUGGESTED PWB LAYOUT

0.45

0.10

(.018

.004)

1.75

0.20

(.069

.008)

0.35

0.10

(.014

.004)

1.90

(.075)

2.20 + 0.25/– 0.15

(.087 + .010/– .006)

1.70

(.067)

1.45

(.057)

1.30

(.051)

2.75

(.108)

2.20

(.087)

DIA.

0.70

0.10

(.028

.004)

1.10

(.043)

1.60

(.063)

1.20

(.047)

0.50

(.020)

0.75

(.030)

1.40

(.055)

0.90

(.035)

0.65

(.026)

1.90

(.075)

1.75

(.069)

1.20

(.047)

0.75

(.030)

0.65

(.026)

0.90

(.035)

1.70

(.067)

ADJ. SLOT
1.70
(.067)
.46

0.10

(.018

.004)

.35

0.10

(.014

.004)

WIDE

DEEP

DIA.

0.56

(.022)

3302W, X-2
3 Terminals for
Automatic Trimming Adjustment

SUGGESTED PWB LAYOUT

1.80

(.071)

1.90

(.075)

1.60

(.063)

0.45

(.018)

0.35

(.014)

2.20 + 0.25/– 0.15

(.087 + .010/– .006)

1.60

(.063)

1.45

(.057)

1.30

(.051)

2.75

(.108)

2.20

(.087)

DIA.

0.70

0.10

(.028

.004)

1.10

(.043)

1.60

(.063)

1.20

(.047)

0.50

(.020)

0.75

(.030)

1.40

(.055)

0.90

(.035)

0.65

(.026)

1.90

(.075)

1.75

(.069)

1.20

(.047)

0.75

(.030)

0.65

(.026)

0.90

(.035)

1.70

(.067)

ADJ. SLOT
LENGTH

ADJ. SLOT
WIDTH

Features

■

Single-Turn Cermet / Open Frame

■

Recommended for reflow processing

■

Rotor design compatible with automatic
adjustment equipment

■

Supplied in 8mm embossed tape,
compatible with automatic assembly
equipment

■

2mm size meets EIA/EIAJ standard
trimmer footprint

*”FLUORINERT” IS A REGISTERED TRADEMARK OF 3M CO.

SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

How To Order

3302 X - 2 - 103 E

Model

Style
Orientation of Parts
In Tape:
Style W: Terminals Toward

Sprocket Holes

Standard or Modified
Product Indicator

-1 =

Single Slot

-2 =

Cross Slot Rotor (Std. Product)

Resistance Code

Embossed Tape Designator

Consult factory for other available options.

Specifications are subject to change without notice.

9.00

1.50

(.354

.059)

50.03

(1.970)

1.20

0.50

(.047

.020)

12.95

0.51

(.510

.020)

178.0

2.00

(7.008

.079)

2.90

0.20

(.114

.008)

2.44

0.20

(.096

.008)

4.00

0.10

(.157

.004)

3.50

0.10

(.138

.004)

2.00

0.05

(.079

.002)

4.00

0.10

(.157

.004)

1.75

0.10

(.069

.004)

8.00

0.31

(.315

.012)

2.26

0.20

(.089

.008)

0.60

(.024)

TAPE

REEL

Meets EIA 481

MAX.

DIA.

MIN. DIA.

DIA.

CLOCKWISE

CCW

WIPER

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

3302 - Packaging Specifications

Standard Resistance Table

Popular values listed in boldface.

Resistance

Part Marking

Resistance

(Ohms)

Code

200

201

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

50,000

503

100,000

104

200,000

204

500,000

504

1,000,000

105

Specifications are subject to change without notice.

CLOCKWISE

CCW

WIPER

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.30 (.012) EXCEPT WHERE NOTED

3303 - 3mm SMD Trimming Potentiometer

Electrical Characteristics

Standard Resistance Range

..................................100 to 1 megohm

(see standard resistance table)

Resistance Tolerance .............±25% std.
Absolute Minimum Resistance

≤

1K Ohms......................20 ohms max.

>1K Ohms .....................2% max. of TR

Contact Resistance Variation ...5% max.

Resolution...................................Infinite

Adjustment Angle....................260° ±20°

Environmental Characteristics

Resistance to Soldering Heat

.......260°C, 10 seconds, TRS max. 5%

Power Rating (50 VDC max.)

70°C .......................................0.15 watt

Temperature Range

....................................-40°C to +125°C

Temperature Coefficient

..........................................±250ppm/°C

Humidity .....................................95%RH

500 hours

TRS max. ........................................±5%
Load Life

.............@ 70°C rated power 500 hours

TRS ±5%

Rotational Cycling......................20 turns

TRS ±15%

Physical Characteristics

Torque.........................20-200g-cm max.
Mechanical Angle .................Continuous
Marking......................Part marking code
Standard Packaging

...................................2000 pcs./7” reel

Adjustment Tool ..............................H-90

SUGGESTED PWB LAYOUT

3303W, X-1
3mm Open Frame
for Reflow Soldering
3-Terminal

1.60

(.063)

0.99

(.039)

1.20

(.047)

3.20

(.126)

0.90

(.035)

0.80

(.031)

1.50

(.059)

0.30

0.15

(.012

.006)

1.40

(.055)

3.00

(.118)

1.90

(.075)

1.85

(.073)

1.50

(.060)

3.75

(.148)

2.50

0.15

(.098

.006)

.0.55

0.15

(.022

.006)

MAX.

1.10

(.043)

0.80

(.031)

0.90

(.035)

0.90

(.035)

0.90

(.035)

0.98

(.039)

0.95

(.037)

1.20

(.047)

ADJ SLOT

2.50

.15

(.098

.006)

.55

.15

(.022

.006)

.30

.15

(.012

.006)

LONG

WIDE

DEEP

Features

■

Recommended for reflow processing

■

Rotor design compatible with pick and

place and automatic adjustment
equipment

■

Supplied in 8mm embossed tape,

compatible with automatic assembly
equipment

■

Rear adjust version available

■

3mm size meets EIA/EIAJ standard

trimmer footprint

2.80

(.110)

3.00

(.188)

1.35

(.053)

1.55

(.061)

3303W, X-3
3mm Open Frame
for Reflow Soldering
3-Terminal
Low Profile

1.10

(.043)

0.80

(.031)

3.00

(.118)

1.90

(.075)

1.85

(.073)

1.50

(.059)

3.75

(.148)

0.90

(.035)

0.90

(.035)

0.90

(.035)

0.90

(.035)

0.99

(.039)

0.95

(.037)

SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

How To Order

3303 X - 3 - 103 E

Model

Style

Orientation of Parts In Tape:

Styles W, C -Terminals Toward
Sprocket Holes
Styles X, D - Terminals Away
From Sprocket Holes (prefered)

Standard or Modified

Product Indicator

-1 = Single Slot
*-2 = Cross Slot Rotor (Optional)
-3 = Cross Slot Low Profile (Standard)

Resistance Code

Embossed Tape Designator

Consult factory for other available options.

*Not available in C and D styles

Specifications are subject to change without notice.

3303C,D
3-Terminal
Both Sides Adjust

0.31

0.15

(.012

.006)

1.40

(.055)

0.95

(.037)

1.10

(.043)

0.80

(.031)

SUGGESTED PWB LAYOUT

3.20

(.126)

1.70

(.067)

3.00

(.118)

1.90

(.075)

1.85

(.073)

1.59

(.060)

3.75

(.148)

2.50

0.15

(.098

.006)

.0.55

0.15

(.022

.006)

0.31

(.012)

1.31

(.051)

0.56

(.022)

0.41

(.016)

2.30

(.091)

0.70

(.028)

1.80

(.071)

0.51

(.020)

1.19

(.047)

0.90

(.035)

1.40

(.055)

2.30

(.091)

1.10

(.043)

1.10

(.043)

0.56

(.022)

0.56

(.022)

MAX.

DIA.

ADJ SLOT

2.50

.15

(.098

.006)

.55

.15

(.022

.006)

.30

.15

(.012

.006)

LONG

WIDE

DEEP

8.89

1.52

(.350

.060)

3.99

0.20

(.157

.008)

3.30

0.20

(.130

.008)

TAPE

REEL

Meets EIA 481

0.60

(.024)

MAX.

2.00

0.20

(.079

.008)

MAX.

2.00

0.05

(.078

.002)

4.00

0.10

(.157

.004)

4.00

0.010

(.157

.004)

3.50

0.10

(.138

.004)

1.75

0.10

(.069

.004)

8.00

0.31

(.314

.012)

178.0

2.00

(6.980

.078)

DIA.

1.20

0.50

(.047

.020)

50.03

(1.962)

MIN. DIA

12.95

0.51

(.508

.020)

DIA.

Packaging Specifications

SUGGESTED PWB LAYOUT

2.80

(.110)

3.00

(.118)

1.35

(.053)

2.01

(.079)

3303W, X-2
3mm Open Frame
for Reflow Soldering
3-Terminal

1.60

(.063)

0.98

(.039)

1.10

(.043)

0.80

(.031)

3.00

(.118)

1.90

(.075)

1.85

(.073)

1.50

(.059)

3.75

(.148)

1.60

(.047)

3.20

(.126)

0.90

(.035)

0.90

(.035)

0.90

(.035)

0.90

(.035)

0.90

(.035)

0.99

(.039)

0.95

(.037)

0.80

(.031)

1.50

(.059)

ADJ SLOT

2.50

.15

(.098

.006)

.55

.15

(.022

.006)

.30

.15

(.012

.006)

LONG

WIDE

DEEP

3303 - Dimensions and Tolerances

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.30 (.012) EXCEPT WHERE NOTED

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.38 (.015) EXCEPT WHERE NOTED

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

(OPTIONAL)

Standard Resistance Table

Popular values listed in boldface.

Resistance

Part Marking

Resistance

(Ohms)

Code

100

101

200

201

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

50,000

503

100,000

104

200,000

204

500,000

504

1,000,000

105

SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

Specifications are subject to change without notice.

3306 - 6mm Round Trimming Potentiometer

Resistance

(Ohms)

Code

100

101

200

201

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

25,000

253

50,000

503

100,000

104

200,000

204

250,000

254

500,000

504

1,000,000

105

Features

■

6mm Round / Single-Turn / Cermet
Industrial / Open Frame

■

Cross slot adjustment options

■

Horizontal and vertical mounting styles

■

Dust resistant/splash resistant covers

■

PC board stand-offs and retention feature

■

Front and top adjust styles

Electrical Characteristics

Standard Resistance Range

..................................100 to 1 megohm

(see standard resistance table)

Resistance Tolerance .............±25% std.
Absolute Minimum Resistance

.....................2% max. (

≤

2K = 30 ohms)

Contact Resistance Variation ...3% max.
Resolution.....................................Infinite
Adjustment Angle ...................215° nom.

Environmental Characteristics

Power Rating (100 volts max.)

70°C .........................................0.2 watt

Temperature Range ......-25°C to +100°C
Temperature Coefficient .....±250ppm/°C
Load Life ..1,000 hours 0.2 watt @ 70°C

(5%

∆

TR)

Physical Characteristics

Mechanical Angle....................260° ±20°
Torque (Operating)...........4.5 oz-in. max.
Stop Strength ..................6.5 oz -in. min.
Terminals ........................Solderable pins
Marking ...........................Manufacturer’s

trademark, resistance code

Standard Packaging ....300 pcs. per bag
Adjustment Tool ..............................H-90
Aqueous cleaning not recommended

7.62

.76

(.300

.030)

6.81

.51

(.268

.020)

3.4

(.134)

8.10

.51

(.319

.020)

5.0

(.197)

2.5

(.098)

Top Adjust
Common Dimensions

3306P

3.51

(.138)

3.0

(.118)

2.50

.51

(.098

.020)

MOUNTING
SURFACE

3306F

5.0

.51

(.197

.020)

MOUNTING
SURFACE

2.50

.18

(.098

.007)

5.0

.18

(.197

.007)

SUGGESTED PWB LAYOUT - STYLE F

1.0

.10

(.039

.004)

SUGGESTED PWB LAYOUT - STYLES K, P, W

4.5

.51

(.177

.020)

3306K

3306W

Side Adjust
Common Dimensions

MOUNTING
SURFACE

ADJ.
CROSS SLOT
.80

.15

(.031

.006)

3.4

.15

(.134

.006)

2.01

.15

(.079

.006)

5.0

(.197)

2.5

(.098)

3.05

.76

(.120

.030)

3.51

(.138)

2.50

.51

(.098

.020)

2.50

.51

(.098

.020)

5.0

.51

(.197

.020)

5.0

.18

(.197

.007)

5.0

.18

(.197

.007)

2.50

.18

(.098

.007)

2.50

.18

(.098

.007)

7.62

.76

(.300

.030)

WIDE

LONG

DEEP

ADJ.
CROSS SLOT
.80

.15

(.031

.006)

3.4

.15

(.134

.006)

2.01

.15

(.079

.006)

WIDE

LONG

DEEP

6.81

.51

(.268

.020)

8.4

.51

(.331

.020)

DIA. 3 PLCS.

1.0

.10

(.039

.004)

DIA. 3 PLCS.

4.5

.51

(.177

.020)

Standard Resistance Table

SHADED AREA NOT TYPICALLY STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

CLOCKWISE

CCW

WIPER

How To Order

3306 W - 1 - 103

Model

Style

Standard Product

Resistance Code

AVAILABLE

THROUGH

DISTRIBUTION

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

Popular values listed in boldface. Special
resistances available.

Specifications are subject to change without notice.

3309 - 9mm Round Trimming Potentiometer

Features

■

9mm Round / Single-Turn / Cermet

Industrial / Open Frame

■

Both sides adjust

■

Cross slot and hexagon adjustment

designs

■

Horizontal and vertical mounting styles

■

Dust resistant/splash resistant covers

■

PC board stand-offs and retention feature

Electrical Characteristics

Standard Resistance Range

................................100 to 2 megohms

(see standard resistance table)

Resistance Tolerance .............±25% std.
Absolute Minimum Resistance

.....................2% max. (

≤

2K = 30 ohms)

Contact Resistance Variation ...3% max.
Resolution.....................................Infinite
Adjustment Angle ...................235° nom.

Environmental Characteristics

Power Rating (250 volts max.)

70°C .........................................0.5 watt

Temperature Range ......-25°C to +100°C
Temperature Coefficient .....±250ppm/°C
Load Life ................1,000 hours 0.5 watt

@ 70°C (5%

∆

TR)

Physical Characteristics

Mechanical Angle.....................260°±20°
Torque (Operating)..............5 oz-in. max.
Stop Strength ................11.0 oz -in. min.
Terminals ........................Solderable pins
Marking ...........................Manufacturer’s

trademark, resistance code

Standard Packaging ....200 pcs. per bag
Adjustment Tool ..............................H-90
Aqueous cleaning not recommended

MOUNTING
SURFACE

2.0
(.079)

3309P-3 Both Sides Adjust Hex

9.0

.51

(.354

.020)

11.5

.51

(.453

.020)

6.35

.51

(.250

.020)

10.34

.51

(.407

.020)

4.0

(.157)

MOUNTING
SURFACE

Top/Bottom Adjust
Common Dimensions
3309P

3309P-1 Top Adjust

3309P-2 Both Sides Adjust/Cross Slot

SUGGESTED PWB LAYOUT - 3309P

1.2

.18

(.047

.007)

4.0

(.157)

10.0

.18

(.394

.007)

ADJ.
CROSS SLOT
.80

.15

(.031

.006)

3.4

.15

(.134

.006)

2.0

.15

(.079

.006)

9.0

.51

(.354

.020)

11.5

.51

(.453

.020)

5.80

.51

(.228

.020)

WIDE

LONG

DEEP

5.0

(.197)

5.0

(.197)

5.0

(.197)

2.5

(.098)

5.0

(.197)

2.5

(.098)

10.34

.51

(.407

.020)

4.0

(.157)

5.8

.51

(.228

.020)

MOUNTING
SURFACE

10.34

.51

(.407

.020)

4.0

(.157)

2.29

.51

(.090

.020)

1.2

(.047)

HEX THRU HOLE

ACROSS FLATS

2.5

.18

(.098

.007)

5.0

.18

(.197

.007)

DIA. 3 PLCS.

DIA. -2, -3 ONLY

AVAILABLE

THROUGH

DISTRIBUTION

How To Order

3309 W - 2 - 103

Model

Pin Style

Rotor Style

-2 = Cross Slot/Single Slot Rear Adjust
-3 = 2mm Hex Thru Hole

Resistance Code

CLOCKWISE

CCW

WIPER

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

Specifications are subject to change without notice.

11.0

.51

(.433

.020)

Side Adjust Common
Dimensions
3309W

3309W-3 Both Sides Adjust Hex

MOUNTING
SURFACE

8.0

.51

(.315

.020)

3309W-1 Single Side (Front) Adjust

2.5

(.098)

4.72

(.186)

3309W-2 Both Sides Adjust - Cross Slot

MOUNTING
SURFACE

12.5

.51

(.492

.020)

SUGGESTED PWB LAYOUT - 3309W

9.0

.51

(.354

.020)

9.0

.51

(.354

.020)

11.0

.51

(.433

.020)

8.0

.51

(.315

.020)

2.5

(.098)

2.5

(.098)

ADJ.
CROSS SLOT
.80

.15

(.031

.006)

3.4

.15

(.134

.006)

2.0

.15

(.079

.006)

WIDE

LONG

DEEP

12.5

.51

(.492

.020)

4.0

(.157)

5.0

(.197)

5.0

(.197)

2.5

(.098)

2.5

(.098)

4.0

(.157)

4.22

(.166)

4.22

(.166)

2.29

(.090)

.71

(.028)

2.5

.18

(.098

.007)

2.5

.18

(.098

.007)

5.0

.18

(.197

.007)

1.20

.18

(.047

.007)

DIA. 3 PLCS.

2.01
(.079)

HEX THRU HOLE

ACROSS FLATS

3309 - 9mm Round Trimming Potentiometer

Resistance

(Ohms)

Code

100

101

200

201

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

25,000

253

50,000

503

100,000

104

200,000

204

250,000

254

500,000

504

1,000,000

105

2,000,000

205

Standard Resistance Table

Popular values listed in boldface. Special
resistances available.

SHADED AREA NOT TYPICALLY STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

Specifications are subject to change without notice.

3313 - 3mm Trimming Potentiometer

Electrical Characteristics

Standard Resistance Range

........................10 ohms to 2 megohms

(see standard resistance table)

Resistance Tolerance .............±20% std.
End Resistance........1% or 3 ohms max.

(whichever is greater)

Contact Resistance Variation

........................................3% or 3 ohms

Adjustability

Voltage Divider............................±0.1%
Rheostat .....................................±0.2%

Resolution.....................................Infinite
Insulation Resistance ................500 vdc.

100 megohms min.

Dielectric Strength

Sea Level ..................................500 vac
70,000 Feet...............................350 vac

Adjustment Angle ...................220° nom.

Environmental Characteristics

Max. Soldering Exposure

...................................260°C/5 seconds

Power Rating (200 volts max.)

70°C .....................................0.125 watt
125°C ..........................................0 watt

Operating Temp. Range...-55°C to+125°C
Temperature Coefficient

......................

≤

100 ohms ±150ppm/°C;

>100 ohms ±100ppm/°C

Seal Test ........................85°C Fluorinert*
Humidity .......MIL-STD 202, Method 106

(no vibration) TRS ±3%;

IR 10 megohms

Vibration .........20G TRS ±1%; VRS ±1%
Shock ...........100G TRS ±1%; VRS ±1%
Load Life ...............................1000 hours

@ 70°C Rated Power;TRS ± 3%

Rotational Life .......100 cycles TRS ±3%
Thermal Shock ...........................5 cycles

TRS ±2%; VRS ±1%

Physical Characteristics

Mechanical Angle ...................250° nom.
Torque ................................50g-cm max.
Stop Strength....................200g-cm min.
Pushover Strength (“S” only)

...........1.6 Kilograms (3.5 lbs) minimum

Flammability ...........................U.L. 94V-0
Weight...........................Approx. 0.01 oz.
Marking ........................Resistance code

and date code

Wiper .......................Set at 50% nominal
Standard Packaging .....1000 pcs./7”reel
Adjustment Tool ..............................H-91

3313J

RECOMMENDED LAND PATTERN

3.5

.20

(.138

.008)

3.20

.20

(.126

.008)

0.90

.15

(.035

.006)

2.30

.20

(.091

.008)

1.3

.10

(.051

.004)

0.65

(.026)

1.10

( 043)

0.60

(.024)

4.50

(.177)

1.60

(.063)

2.2

.20

(.087

.008)

0.15

(.006)

ADJ. SLOT
.52
(.020)
1.93
(.076)
.51
(.020)

1.60

(.063)

1.10

( 043)

1.60

(.063)

0.90

.15

(.035

.006)

0.65

0.10

(.026

.004)

WIDE

DEEP

LONG

2 PLCS

Features

■

Surface Mount 3mm Square
Single-Turn Cermet / Sealed

■

Compatible with surface mount manufac-
turing processes

■

Rotor stop for “in-circuit” adjustment

■

100 cycle rotational and seal life

■

Patent #5043695 assembly for seal
integrity

■

Plastic housing for RF applications

How To Order

3313 J - 1 - 502 E

Model

Style

Standard or Modified

Product Indicator

-1 = Standard Product

Resistance Code

Embossed Tape

1000 pcs. / 7” Reel (Standard)

CLOCKWISE

CCW

WIPER

AVAILABLE

THROUGH

DISTRIBUTION

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

3313S

RECOMMENDED LAND PATTERN

3.61

.20

(.142

.008)

2.39

(.094)

0.71

0.20

(.028

.008)

2.62

(.103)

1.57

(.062)

2.77

(.109)

0.15

0.03

(.006

.001)

ADJ. SLOT
.52

0.03

(.020

.001)

1.93

0.03

(.076

.001)

.51

0.06

(.020

.002)

3.02

(.119)

1.57

(.062)

1.12

(.044)

1.15

(.045)

WIDE

DEEP

LONG

2.39

(.094)

3 PLCS

2 PLCS

Position Rotor As Shown
Within

Of Centerline

Of Terminal 2

3.71

(.146)

1.30

(.051)

5.35

(.211)

TYP

*”FLUORINERT” IS A REGISTERED TRADEMARK OF 3M CO.

Specifications are subject to change without notice.

3.8

0.2

(.150

.008)

5.52

0.18

(.217

.007)

2.0

0.10

(.079

.004)

1.75

0.10

(.069

.004)

12.0

0.20

(.472

.008)

1.5

0.10

(.059

.004)

Meets EIA 481

21.01

0.79

(.827

.031)

13.0

0.51

(.512

.020)

178.0

2.03

(7.008

.080)

EQUAL

SPACED

3 PLCS

MIN.

60.0

2.0

(2.362

.079)

12.40 + 2.00/ -.000

(.488 + .079/ -.000)

2.67

(.105)

REEL

TAPE

2.50

.10

(.098

.004)

.30

0.10

(.012

.004)

4.0

0.10

(.157

.004)

1.5

0.20

(.059

.008)

4.0

0.10

(.157

.004)

DIA.

1.78

(.070)

21.01

0.79

(.827

.031)

13.00

0.51

(.512

.020)

177.8

2.03

(7.000

.080)

EQUAL

SPACED

3 PLCS

MIN.

60.0

2.0

(2.330

.080)

16.40 + 2.00/ -.000

(.646 + .079/ -.000)

2.67

(.105)

REEL

DIA.

1.78

(.070)

TAPE

7.50

0.10

(.295

.004)

4.10

0.20

(.161

.008)

4.00

.10

(.157

.004)

2.00

.010

(.079

.004)

4.20

.020

(.165

.008)

1.5

.10

(.059

.004)

DIA.

1.5

0.20

(.059

.008)

DIA.

5.80

0.10

(.228

.004)

.40

(.016)

MAX.

16.00

.30

(.630

.012)

12.00

0.10

(.472

.004)

3313 Packaging Specifications

3313S Packaging Specifications

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

Standard Resistance Table

Popular values listed in boldface. Special
resistances available.

Resistance

Part Marking

Resistance

(Ohms)

Code

100

200

500

100

101

200

201

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

50,000

503

100,000

104

200,000

204

500,000

504

1,000,000

105

2,000,000

205

SHADED AREA NOT TYPICALLY STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

3313 - 3mm Trimming Potentiometer

Specifications are subject to change without notice.

3314 - 4mm Square Trimming Potentiometer

Electrical Characteristics

Standard Resistance Range

.......................10 ohms to 2 megohms

(see standard resistance table)

Resistance Tolerance .............±20% std.

(tighter tolerance available)

End Resistance........1% or 2 ohms max.

(whichever is greater)

Contact Resistance Variation

.......................................1% or 3 ohms

Resolution.....................................Infinite
Insulation Resistance ................500 vdc.

100 megohms min.

Dielectric Strength

Sea Level.................500 vac (1 minute)

Adjustment Angle ...................210° nom.

Environmental Characteristics

Soldering Heat

.............260°C, 10 seconds, TRS ±1%

Power Rating (300 volts max.)

70°C.......................................0.25 watt
125°C..........................................0 watt

Temperature Range ......-55°C to +125°C
Temperature Coefficient .....±100ppm/°C
Humidity ..............................90-98% RH,

10 cycles, 240 hours

TRS ±2%; IR 10 megohms

Vibration .........20G TRS ±1%; VRS ±1%
Shock ...........100G TRS ±1%; VRS ±1%
Load Life

......(@ 70°C Rated Power 1000 Hours)

TRS ±3%

Rotational Life ........................100 cycles

TRS ±3%

Thermal Shock ..........................5 cycles

TRS ±2%; VRS ±1%

Physical Characteristics

Mechanical Angle ...................240° nom.
Torque ...........................180g-cm typical
Stop Strength ................300g-cm typical
Pushover Strength (Z Style)

.............2 kilograms (4.4 lbs.) minimum

Weight ................Approximately 0.01 oz.
Marking .................Manufacturer’s code,

resistance code and date code

Wiper ...........Positioned at 50% nominal
Flammability ...........................U.L. 94V-0
Standard Packaging

J & G ...........................500 pcs./7” reel
Z ..................................200 pcs./7” reel
H .......................................50 pcs./tube

Adjustment Tool ..............................H-90

6.20

(.244)

5.00

(.197)

1.30

0.10

(.051

.004)

0.80

0.10

(.031

.004)

2 PLCS.

2.35

(.092)

3314R-1

5.00

(.197)

4.50

(.177)

ADJUSTMENT SLOT
2.45 LONG

(.096)

X 0.51 WIDE

(.020)

X 0.51 DEEP

(.020)

6.20

(.244)

2.55

0.20

(.008)

TYP.

0.51

0.13

(.020

.005)

TYP.

R 0.13 MAX. TYP.

(.005)

2.3

(.090)

1.3

(.051)

2 PLCS.

5.5

(.216)

2.0

(.079)

1.3

(.051)

2 PLCS.

3.2 DIA.

(.126)
THRU.

0.51

0.13

(.020

.005)

TYP.

1.0

(.040)

3 PLCS.

0.8

0.1

(.031

.004)

2 PLCS.

2.35

(.093)

2.3

(.091)

1.3

(.051)

2 PLCS.

2.0

(.079)

2.0

(.079)

3 PLCS.

3314J-1

0.20

(.008)

4.50

(.177)

4.50

(.177)

2.55

(.100)

TYP.

ADJ. SLOT
2.45
(.096)
.51
(.020)
.51
(.020)

WIDE

DEEP

LONG

4.00

(.157)

5.00

(.197)

5.00

(.197)

1.30

0.1

(.051

.004)

4.50

(.177)

2.55

(.100)

6.20

(.244)

5.00

(.197)

1.30

0.1

(.051

.004)

0.8

0.1

(.031

.004)

2.35

(.093)

2.3

(.091)

1.3

(.051)

5.5

(.217)

2.0

(.079)

3314G-1

0.20

(.008)

0.6

(.024)

MAX.

TYP.

4.50

(.177)

ADJ. SLOT
2.45
(.096)
.51
(.020)
.51
(.020)

WIDE

DEEP

LONG

TYP.

2 PLCS.

1.3

(.051)

3 PLCS.

Features

■

Surface Mount / Single Turn / Cermet

Industrial / Sealed

■

Compatible with surface mount
manufacturing processes

■

Compatible with popular vacuum
pick-and-place equipment

■

J-hook, gull-wing and pinned
configurations

■

Side adjust available

■

Cross-slot rotor (Z Style)

■

Meets EIA/EIAJ/IPC/VRCI SMD standard
trimmer designs

AVAILABLE

THROUGH

DISTRIBUTION

DIMENSIONS ARE:

METRIC

(INCHES)

0.20

(.008)

3314H-1

0.80

(.031)

6.30

(.248)

5.00

0.10

(.197

.004)

4.00

(.157)

4.50

(.177)

4.50

(.177)

2.55

(.100)

2.55

(.100)

2.55

(.100)

TYP.

0.6

0.1

(.024

.004)

3 PLCS.

5.00

(.197)

5.00

(.197)

DIA. TYP.

ADJ. SLOT
2.45
(.096)
.51
(.020)
.55
(.022)

WIDE

DEEP

LONG

OUTSIDE WHEN
PINS ARE PARALLEL

ROTOR POSITIONED AS SHOWN
WITHIN

OF CENTERLINE

OF TERMINAL 2

ADJUSTMENT SLOT

LONG

X WIDE

X DEEP

2.41

(.095)

0.51

(0.02)

0.51

(0.02)

2.54

(0.10)

1.27

(0.50)

1.19

(0.047)

1.29

(0.051)

0.61

(.024)

3.18

(.125)

5.01

(.197)

3.32

(0.131)

0.96

(.038)

5.56

(0.219)

2.54

(0.10)

1.3

(0.051)

3.48

(.137)

2.01

(.079)

2.01

(.079)

2.01

(.079)

RECOMMENDED PCB LAYOUT

0.26

(.010)

0.21

(.008)

5.76

(0.227)

3.08

(0.121)

3314Z

(J, G Styles)

TAPE

177.8

2.03

(7.000

.080)

13.0

.51

(.512

.020)

DIA.

1.78

.25

(.070)

.010)

21.01

.79

(.827

.031)

2.67

.25

(.105

.010)

59.18

2.03

(2.330

.080)

12.4 + 2.01/ -.000

(.488 + .079/ - .000)

REEL

2.74

.10

(.108

.004)

.36

(.014)

5.52

0.5

(.217

.020)

1.5 + .10/ –.00

(.060 + .004/ - .000)

4.00

.10

(.157

.004)

2.00

.05

(.079

.020)

8.00

.20

(.315

.008)

1.75

.10

(.069

.004)

12.00

.30

(.472

.012)

5.26

.10

(.207

.004)

5.26

.10

(.207

.004)

6.45

.10

(.254

.004)

Meets EIA specification 481.

MAX.

DIA.

(G)

(J)

EQUAL SPACED 3 PLCS.

Specifications are subject to change without notice.

Additional Features

■

Model 3314 has been approved for use
by DESC on drawings 88039 (3314J) and
90027 (3314G)

Packaging Specifications

3314 - 4mm Square Trimming Potentiometer

How To Order

3314 J - 1 - 502 E

Model

Style

Standard or Modified

Product Indicator

-1 = Single Slot
-2 = Cross Slot Rotor

(Style Z is standard,
Styles J, G & H are available)

Resistance Code

Embossed Tape Designator

(Applicable to Styles J, G and S only)

Styles J & G: 500 pcs. /7” reel (standard)
Style Z: 200 pcs. /7” reel (standard)

Consult factory for other available options.

CLOCKWISE

CCW

WIPER

SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

Specifications are subject to change without notice.

Packaging Specifications

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.30 (.012) EXCEPT WHERE NOTED

3314 - 4mm Square Trimming Potentiometer

Standard Resistance Table

Popular values listed in boldface. Special
resistances available.

Resistance

(Ohms)

Code

100

200

500

100

101

200

201

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

50,000

503

100,000

104

200,000

204

250,000

254

500,000

504

1,000,000

105

2,000,000

205

SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

TAPE

177.8

2.03

(7.00

.080)

DIA. REF.

13.0

.508

(.512

.020)

DIA.

1.78

.254

(.070

.010)

EQUAL SPACED

3 PLCS.

21.01

.789

(.000

.000)

DIA.

2.67

.254

(.105

.010)

59.18

2.03

(2.330

.080)

12.4 + 2.01/ -.000

(.488 + .079/-.000)

REEL

3.29

.10

(.130

.004)

.30 MAX.

(0.12)

5.52

0.05

(.217

.002)

1.5 + .10/ –.00

(.059 + .004-.00)

DIA.

4.00

.10

(.157

.004)

2.00

.05

(.079

.002)

1.75

.10

(.068

.004)

12.00

.30

(4.72

.012

5.26

.10

(.207

.004)

6.45

0.10

(.254

.004)

Meets EIA specification 481.

1.50 + 0.30

DIA.

(.059

.012)

(R Style)

REEL

59.18

2.03

(2.330

.080)

2.67

.25

(.105

.010)

21.01

.79

(.827

.031)

DIA.

1.78

.25

(.070)

.010)

13.0

.51

(.512

.020)

DIA.

177.8

2.03

(7.000

.080)

16.4 + 2.0/ -.00

(.646 + .079/ - .00)

DIA.

16.00

0.3

(.630

0.012)

1.5 + 0.1/-0.0

(0.59 +.004 /-0.0)

R TYP.

0.5

(.020)

DIA. MIN.

DIA.

1.5

(.059)

12.0

(.472)

7.5

(.295)

TAPE

1.75

(.069)

6.0

(.236)

4.0

(.157)

2.0

(.079)

5.5

(.217)

9.1

(.358)

5º MAX.

MAX.

0.40

(.016)

(Z Style)

Specifications are subject to change without notice.

3318 - 6mm Square Trimming Potentiometer

Features

■

Single-Turn / Carbon / Commercial
Open Frame

■

Cross slot rotor design suitable for
automatic adjustment equipment

■

Board retention feature

■

Enclosed cover

■

PC board stand-offs

■

Adjustable front/back, top/bottom

3318K

2.50

(.098)

4.65

(.183)

3.20

(.126)

0.75

(.030)

1.85

(.073)

0.40

(.016)

3.80

(.150)

4.50

(.177)

8.00

(.315)

MOUNTING
SURFACE

FRONT VIEW

REAR VIEW

FRONT VIEW

REAR VIEW

2.00

0.10

(.079

.004)

ADJUSTING

DIRECTION

SUGGESTED PWB LAYOUT

2.50

(.098)

1.00 + 0.10

(.039 + .004)

6.40

(.252)

2.50

(.098)

0.80

0.10

(.031

.004)

0.80

0.10

(.031

.004)

1.20

(.047)

1.70

(.067)

0.75

(.030)

0.60

(.024)

5.00

(.197)

DIA.

3 PLACES

DIA.

6.40

(.252)

3.50

(.138)

1.20

(.047)

3.20

(.126)

3.50

0.50

(.138

.020)

MOUNTING
SURFACE

6.35

(.250)

1.70

(.067)

0.75

(.030)

0.30

(.012)

3318F

0.80

0.10

(.031

.004)

0.60

(.024)

4.65

(.183)

2.00

0.10

(.079

.004)

SUGGESTED PWB LAYOUT

1.00 + 0.10

(.039

.004)

5.00

(.197)

5.00

(.197)

3.20

(.126)

0.75

(.030)

DIA.

0.80

0.10

(.031

.004)

Resistance

(Ohms)

Code

100

101

200

201

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

50,000

503

100,000

104

200,000

204

500,000

504

1,000,000

105

Standard Resistance Table

Popular values listed in boldface.

CLOCKWISE

CCW

WIPER

How To Order

3318 K - 1 - 103

Model

Style

Standard Product

Resistance Code

AVAILABLE

THROUGH

DISTRIBUTION

Electrical Characteristics

Standard Resistance Range

.................................100 to 1 megohm

(see standard resistance table)

Resistance Tolerance ....................±30%
Contact Resistance Variation

.............................................10% max.

Resolution.....................................Infinite
Adjustment Angle....................210° ±20°

Environmental Characteristics

Power Rating

100-500K ohms..............................50V
>500K ohms ...................................25V
50°C.........................................0.1 watt

Temperature Range ......-25°C to +100°C
Temperature Coefficient ...±1000ppm/°C
Load Life ...1,000 hours 0.1 watt @ 70°C

(20%

∆

TR)

Physical Characteristics

Torque (Operating)..............20-250 g-cm
Stop Strength

Knob Side .............................750 g-cm
Reverse Side .........................350g-cm

Terminals ........................Solderable pins
Marking ......Resistance code, date code
Standard Packaging ....200 pcs. per bag
Adjustment Tool ..............................H-90
Aqueous cleaning not recommended

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

Specifications are subject to change without notice.

MOUNTING
SURFACE

HEX THRU HOLE
2.0
(.079 )

3319P-3 Both Sides Adjust/Hex

9.0

.51

(.354

.020)

11.5

.51

(.453

.020)

6.35

.51

(.250

.020)

10.34

.51

(.407

.020)

4.0

(.157)

MOUNTING
SURFACE

3319P Common Dimensions

3319P-1 Top Adjust

3319P-2 Both Sides Adjust/Cross Slot

2.29

.51

(.090

.020)

1.2

(.047)

SUGGESTED PWB LAYOUT - 3319P

1.2

.18

(.047

.007)

10.0

.18

(.394

.007)

ADJ.
CROSS SLOT
.80

.15

(.031

.006)

2.0

.15

(.079

.006)

3.4

.15

(.134

.006)

11.5

.51

(.453

.020)

WIDE

DEEP

LONG

5.0

(.197)

5.0

(.197)

5.0

(.197)

9.0

.51

(.354

.020)

2.5

(.098)

5.0

(.197)

2.5

(.098)

4.0

(.157)

4.0

(.157)

5.8

.51

(.228

.020)

5.8

.51

(.228

.020)

10.34

.51

(.407

.020)

4.0

(.157)

MOUNTING
SURFACE

10.34

.51

(.407

.020)

2.5

.18

(.098

.007)

5.0

.18

(.197

.007)

DIA. 3 PLCS.

DIA. -2, -3 ONLY

ACROSS FLATS

How To Order

3319 W - 2 - 103

Model

Pin Style

Rotor Style

-2 = Cross Slot/Single Slot Rear Adjust
-3 = 2mm Hex Thru Hole

Resistance Code

3319 - 9mm Round Trimming Potentiometer

Features

■

9mm Round / Single Turn / Carbon
Commercial / Open Frame

■

Both sides adjust

■

Cross slot and hexagon adjustment
designs

■

Horizontal and vertical mounting styles

■

Dust resistant/splash resistant covers

■

PC board stand-offs and retention feature

Electrical Characteristics

Standard Resistance Range

.................................100 to 1 megohm

(see standard resistance table)

Resistance Tolerance .............±25% std.
End Resistance

....................2% max. (

≤

2K = 30 ohms)

Contact Resistance Variation

...............................................3% max.

Resolution.....................................Infinite
Adjustment Angle ...................235° nom.

Environmental Characteristics

Power Rating (200 volts max.)

70°C.........................................0.2 watt

Temperature Range

...................................-25°C to +100°C

Temperature Coefficient

.......................................±1000ppm/°C

Load Life

...............1,000 hours 0.2 watt @ 70°C

(<100K = +3/-7%

∆

TR)

(

≥

100K = +3/-10%

∆

TR)

Physical Characteristics

Torque (Operating)

.........................................5 oz-in. max.

Stop Strength

....................................11.0 oz -in. min.

Terminals ........................Solderable pins
Marking ...........................Manufacturer’s

trademark, resistance code

Standard Packaging

..................................200 pcs. per bag

Adjustment Tool ..............................H-90

Aqueous cleaning not recommended

AVAILABLE

THROUGH

DISTRIBUTION

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

Specifications are subject to change without notice.

Side Adjust
3319W-1

3319W-3 Both Sides Adjust/Hex

MOUNTING
SURFACE

12.5

.51

(.492

.020)

2.50

(.098)

4.22

(.166)

3319W-2 Both Sides Adjust /Cross Slot

2.29

(.090)

MOUNTING
SURFACE

SUGGESTED PWB LAYOUT - 3319W

9.0

.51

(.354

.020)

9.0

.51

(.354

.020)

11.0

.51

(.433

.020)

12.5

.51

(.492

.021)

11.0

.51

(.433

.020)

8.0

.51

(.315

.020)

8.0

.51

(.315

.020)

5.0

(.197)

5.0

(.197)

2.5

(.098)

2.5

(.098)

4.0

(.157)

4.0

(.157)

.71

(.028)

2.50

(.098)

2.50

(.098)

4.72

(.186)

4.22

(.166)

2.5

.18

(.098

.007)

2.5

.18

(.098

.007)

5.0

.18

(.197

.007)

1.20

.18

(.047

.007)

DIA. 3 PLCS.

HEX THRU HOLE ACROSS FLATS

2.0

(.079)

ADJ.
CROSS SLOT
.80

.15

(.031

.006)

2.0

.15

(.079

.006)

3.4

.15

(.134

.006)

WIDE

DEEP

LONG

CLOCKWISE

CCW

WIPER

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

3319 - 9mm Round Trimming Potentiometer

Resistance

(Ohms)

Code

100

101

200

201

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

50,000

503

100,000

104

200,000

204

500,000

504

1,000,000

105

Standard Resistance Table

Popular values listed in boldface. Special
resistances available.

SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

Specifications are subject to change without notice.

CLOCKWISE

CCW

WIPER

3324 - 4mm Square Trimming Potentiometer

Features

■

Surface Mount / Single-Turn / Cermet

Industrial / Sealed

■

Compatible with surface mount
manufacturing processes

■

Standoffs facilitate boardwashing and
mechanical stability

■

Plastic housing for RF applications

■

Low profile

■

Patent #5043695 assembly for seal

integrity

Electrical Characteristics

Standard Resistance Range

.......................10 ohms to 2 megohms

(see standard resistance table)

Resistance Tolerance .............±20% std.

(tighter tolerance available)

End Resistance

..............................1% or 3 ohms max.

(whichever is greater)

Contact Resistance Variation

..............................3% or 3 ohms max.

(whichever is greater)

Resolution...................Essentially Infinite
Insulation Resistance ................500 vdc.

100 megohms min.

Dielectric Strength

Sea Level.................500 vac (1 minute)

Adjustment Angle ...................220° nom.

Environmental Characteristics

Soldering Heat

.............260°C, 10 seconds, TRS ±1%

Power Rating (200 volts max.)

70°C.......................................0.25 watt
125°C..........................................0 watt

Operating Temperature Range

...................................-55°C to +125°C

Temperature Coefficient

<100 Ohms ......................±150ppm/°C
>100 Ohms ......................±100ppm/°C

Humidity ..............................80-98% RH,

10 cycles, 240 hours

TRS ±3%; IR 10 megohms

Vibration .........20G TRS ±1%; VRS ±1%
Shock ...........100G TRS ±1%; VRS ±1%
Load Life

......(@ 70°C Rated Power 1000 Hours)

TRS ±3%

Rotational Cycling..................100 cycles

TRS ±3%

Thermal Shock ..........................5 cycles

TRS ±2%; VRS ±1%

Physical Characteristics

Mechanical Angle ...................250° nom.
Torque .............................50g-cm typical
Stop Strength ................200g-cm typical
Weight ................Approximately 0.01 oz.
Marking .................Manufacturer’s code,

resistance code and date code

Wiper ...........Positioned at 50% nominal
Flammability ...........................U.L. 94V-0
Adjustment Tool ..............................H-91

3324J Common Dimensions

RECOMMENDED LAND PATTERN

2.3

(.091)

0.76

(.030)

1.12

(.056)

1.04

(.050)

2.2

(.087)

3.3

(.130)

4.26

(.168)

4.36

(.172)

ADJ. SLOT
1.93

.03

(.076

.001)

.52

.03

(.020

.001)

.50

.06

(.020

.002)

WIDE

DEEP

LONG

2.16

(.085)

0.20

(.008)

1.02

(.040)

2.3

(.091)

2.0

(.079)

1.3

(.051)

2 PLCS.

3 PLCS.

2 PLCS

3324G

4.36

(.172)

4.26

(.168)

2.3

(.091)

1.02

(.040)

0.76

(.030)

2.16

(.085)

0.20

(.008)

0.86

(.034)

0.75

(.030)

2.0

(.079)

1.5

(.059)

5.5

(.217)

2.3

(.091)

1.3

(.051)

MAX. TYP.

2 PLCS

PLCS.

2 PLCS.

AVAILABLE

THROUGH

DISTRIBUTION

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

How To Order

3324 J - 1 - 502 E

Model

Style

Standard or Modified

Product Indicator

-1 = Standard Product

Resistance Code

Embossed Tape

1000 pcs./7” Reel (Standard)

Specifications are subject to change without notice.

3324 - 4mm Square Trimming Potentiometer

TAPE

REEL

2.74

.10

(.108

.004)

.36

(.014)

5.52

0.5

(.217

.020)

1.5 + .10/ –.00

(.059 + .004/ – .000)

Meets EIA specification 481.

MAX.

DIA.

5.26

.10

(.207

.004)

6.45

.10

(.254

.004)

(G)

(J)

5.26

.10

(.207

.004)

4.00

.10

(.157

.004)

2.00

.05

(.079

.020)

8.00

.20

(.315

.008)

1.75

.10

(.069

.004)

12.00

.30

(.472

.012)

59.18

2.03

(2.330

.080)

2.67

.25

(.105

.010)

21.01

.79

(.827

.031)

DIA.

1.78

.25

(.070)

.010)

EQUAL SPACED 3 PLCS.

13.0

.51

(.512

.020)

DIA.

177.8

2.03

(7.000

.080)

12.4 + 2.01/ -.000

(.488 + .079/ - .000)

DIA.

Packaging Specifications

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

Standard Resistance Table

Popular values listed in boldface. Special
resistances available.

Resistance

Part Marking

Resistance

(Ohms)

Code

100

200

500

100

101

200

201

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

50,000

503

100,000

104

200,000

204

500,000

504

1,000,000

105

2,000,000

205

Specifications are subject to change without notice.

3328 - 9mm Square Trimming Potentiometer

3328P

3328W

RECOMMENDED PWB MOUNTING PATTERN

5.08

(.200)

5.08

(.200)

1.30

(.051)

DIA.

10.16

(.400)

RECOMMENDED PWB MOUNTING PATTERN

5.08

(.200)

1.30

(.053)

2.54

(.100)

CCW

CLOCKWISE

WIPER

11.01

(.433)

5.59

(.220)

9.60

(.378)

10.41

(.410)

14.35

(.585)

4.01

(.158)

3.48

(.137)

5.08

(.200)

2.54

(.100)

2.54

(.100)

1.52

(.060)

1.02

(.040)

2.54

(.100)

3.61

(.142)

10.01

(.394)

5.08

(.200)

0.38

(.015)

0.15

(.006)

ADJUSTMENT ACCESSORIES

H118-1 Wheel

H118-2 Shaft

5.54

(.218)

1.19

(.047)

11.51

(.453)

9.9

(.390)

14.1

(.555)

3.7

(.146)

5.0

(.197)

0.5

(.020)

3.84

(.151)

1.98

(.019)

0.48

(.019)

4.80

(.189)

10.41

(.410)

9.60

(.378)

HEX THRU UNIT ACROSS FLATS

2.08

(.082)

CROSS SLOT LONG X WIDE X DEEP

3.05

(.120)

0.76

(.030)

0.76

(.030)

3.18

(.125)

DIA. OPTIONAL
FOR THRU
BOARD
ADJUSTMENT

DIA

ACROSS FLATS

1.98

(.078)

ACROSS

FLATS

Features

■

Single-turn / conductive plastic

■

Commercial / dust proof / fully enclosed

■

Cross slot rotor design suitable for
automatic adjustment equipment

■

Hexagon adjustment design

■

PC board stand-off and retention feature

■

Adjustable front/back, top/bottom

Electrical Characteristics

Resistance Range...........100

Ω

- 5.0 M

Ω

Resistance Tolerance

100

Ω

- 1.0 M

Ω

, ± 20%

>1.0M

Ω

- 5.0 M

Ω

, ± 30%

End Resistance .........................3% Max
Contact Resistance Variation ....3

Ω

or 3%

whichever is greater

Resolution ..................................(Infinite)
Adjustment Angle ...................220°±20°
Max. Operating Voltage ................200 V

Environmental Characteristics

Power Rating ..............40°C, 0.20 Watts
Temperature Range......-25°C to + 70° C
Temperature Coefficient of Resistance

............±400 ppm , 100

Ω

< TR

≤

1 M

Ω

Load Life ......1000 hours 0.20w at 40°C,

TRS ±10%

Vibration .....20 g, TRS ± 2%, VRS ± 2%
Shock .......100 g, TRS ± 2%, VRS ± 2%
Rotational Cycling ................500 cycles,

TRS ± 3%

Physical Characteristics

Torque (Operating)..............50-200 g.cm
Stop Strength ..........................550 g.cm
Terminals .......................Solderable Pins
Marking.........Manufacturer’s trademark,

resistance code and date code

Standard Packaging ...200 Pcs. per Bag
Mechanical Angle ..................250° ± 20°
Flammability..............................UL94V-0
Wiper Position ..................50% nominal

DIMENSIONS ARE:

METRIC

(INCHES)

Product Dimensions

CCW

CLOCKWISE

WIPER

Specifications are subject to change without notice.

3329 - 1/4” Round Trimming Potentiometer

Features

■

1/4” Round / Single-Turn / Cermet
Industrial / Sealed

■

5 standard terminal styles

■

Tape and reel packaging available
(see page 71 for details)

Electrical Characteristics

Standard Resistance Range

...................................10 to 1 megohm

(see standard resistance table)

Resistance Tolerance .............±10% std.

(closer tolerance available)

Absolute Minimum Resistance

.......................................1% or 2 ohms

(whichever is greater)

Contact Resistance Variation

...........................3.0% or 3 ohms max.

(whichever is greater)

Adjustability

Voltage .....................................±0.05%
Resistance ...............................±0.15%

Resolution.....................................Infinite
Insulation Resistance ................500 vdc.

1,000 megohms min.

Dielectric Strength

Sea Level .................................600 vac
80,000 Feet ..............................250 vac

Adjustment Angle ...................240° nom.

Environmental Characteristics

Power Rating @ 85°C (300 volts max.)

.................................................0.5 watt

Power Rating @ 150°C..................0 watt
Temperature Range ......-55°C to +150°C
Temperature Coefficient .....±100ppm/°C
Seal Test ........................85°C Fluorinert*
Humidity........MIL-STD-202 Method 106

96 hours

(3%

∆

TR, 10 Megohms IR)

Vibration............30G (1%

∆

TR; 1%

∆

VR)

Shock..............100G (1%

∆

TR; 1%

∆

VR)

Load Life

...............1,000 hours 0.5 watt @ 85°C

(3%

∆

TR; 3% CRV)

Rotational Life ........................200 cycles

(4%

∆

TR; 4% CRV)

Physical Characteristics

Mechanical Angle ...................260° nom.
Torque .............................5.0 oz-in. max.
Stop Strength ..................5.0 oz -in. min.
Terminals ........................Solderable pins
Weight ........................................0.02 oz.
Marking .........Manufacturer’s trademark,

resistance code, date code,

manufacturer’s model number

and style

Wiper ...........Positioned at 50% nominal
Standard Packaging .....50 pcs. per tube
Adjustment Tool ..............................H-90

4.57

(.180)

REF.

.46

.05

(.018

.002)

6.35

.51

(.250

.020)

6.78

2.24

(.267

.088)

3329H

3329P

5.82

.25

(.229

.010)

3329S

6.10

(.240)

.89

(.035)

6.60

(.260)

.38

(.015)

7.75

2.97

(.305

.117)

8.38

.51

(.330

.020)

5.08

(.200)

3329W

3329X

3329P-DK9-RC

6.35

.51

(.250

.020)

5.79

(.228)

4.75

(.187)

.46

.05

(.018

.002)

.43

.13

(.017

.005)

2.54

(.100)

ADJ. SLOT
2.79

.038

(.110

..001)

.64
(.025)
.51
(.020)

2.54

(.100)

2.54

(.100)

WIDE

DEEP

DIA.

MIN.

DIA. 3 PINS

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

6.10

(.240)

6.10

(.240)

5.08

(.200)

5.08

(.200)

6.60

(.260)

6.60

(.260)

.89

(.035)

.89

(.035)

2.54

(.100)

.38

(.015)

DIA. TYP.

6.78

2.24

(.267

.088)

6.35

.51

(.250

.020)

7.75

2.97

(.305

.117)

7.75

2.97

(.305

.117)

8.38

.51

(.330

.020)

8.38

.51

(.330

.020)

.38

(.015)

.38

(.015)

ADJ. SLOT
3.56
(.140)
.64
(.025)
1.02
(.040)

WIDE

DEEP

LONG

How To Order

3329 H - 1 - 103

Model

Style

Standard or Modified

Product Indicator

-1 = Standard Product
-DK9 = Plastic Spacer

Resistance Code

Consult factory for other available options.

Standard Resistance Table

Popular values listed in boldface. Special
resistances available.

Resistance

(Ohms)

Code

100

200

500

100

101

200

201

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

25,000

253

50,000

503

100,000

104

200,000

204

250,000

254

500,000

504

1,000,000

105

AVAILABLE

THROUGH

DISTRIBUTION

*”FLUORINERT” IS A REGISTERED TRADEMARK OF 3M CO.

SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

Specifications are subject to change without notice.

3339 - 5/16” Round Trimming Potentiometer

Features

■

Four-Turn / Cermet / Industrial / Sealed

■

Unique planetary drive offers precise
wiper setting of a multiturn in a
single-turn package size

■

Top and side adjust styles

Electrical Characteristics

Standard Resistance Range

...................................10 to 1 megohm

(see standard resistance table)

Resistance Tolerance .............±10% std.

(tighter tolerance available)

Absolute Minimum Resistance

..............................1% or 2 ohms max.

(whichever is greater)

Contact Resistance Variation

..............................3% or 3 ohms max.

(whichever is greater)

Adjustability

Voltage .....................................±0.05%
Resistance .................................±0.1%

Resolution.....................................Infinite
Insulation Resistance ................500 vdc.

1,000 megohms min.

Dielectric Strength

Sea Level .................................600 vac
80,000 Feet ..............................250 vac

Effective Travel....................4 turns nom.

Environmental Characteristics

Power Rating (300 volts max.)

85°C.........................................0.5 watt
150°C..........................................0 watt

Temperature Range

...................................-55°C to +150°C

Temperature Coefficient

.........................................±100ppm/°C

Seal Test ........................85°C Fluorinert*
Humidity........MIL-STD-202 Method 103

96 hours

(3%

∆

TR, 10 Megohms IR)

Vibration............30G (1%

∆

TR; 1%

∆

VR)

Shock..............100G (1%

∆

TR; 1%

∆

VR)

Load Life

...............1,000 hours 0.5 watt @ 85°C

(3%

∆

TR; 3% or 3 ohms,

whichever is greater, CRV)

Rotational Life ........................200 cycles

(3%

∆

TR; 3% or 3 ohms,

whichever is greater, CRV)

Physical Characteristics

Torque ................................3 oz-in. max.
Mechanical Stops..................Wiper idles
Terminals ........................Solderable pins
Weight ........................................0.02 oz.
Marking ...........................Manufacturer’s

trademark, resistance code,

wiring diagram, date

code, manufacturer’s

model number and style

Wiper ..........Positioned at 50% nominal
Flammability ............................U.L.94V-0
Standard Packaging .....50 pcs. per tube
Adjustment Tool ..............................H-90

How To Order

3339 H - 1 - 103

Model

Style

Standard or Modified

Product Indicator

-1 = Standard Product

Resistance Code

Consult factory for other available options.

Standard Resistance Table

Popular values listed in boldface. Special
resistances available.

Resistance

(Ohms)

Code

100

200

500

100

101

200

201

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

25,000

253

50,000

503

100,000

104

200,000

204

250,000

254

500,000

504

1,000,000

105

.43

.05

(.017

.002)

ADJ. CROSS SLOT

6.35

(.250)

7.62

(.300)

.51

(.020)

REF.

2.54

.025

(.10

.01)

.38

(.015)

3339H
Common Dimensions
(Top Adjust)

6.35

(.250)

7.62

(.300)

.51

(.020)

3339P

3339S
Common Dimensions (Side Adjust)

5.97

(.235)

8.00

.38

(.315

.015)

9.53

.38

(375

.015)

.38

(.015)

8.13

.38

(.320

.015)

.64

(.025)

5.54

.38

(.218

.015)

.51

(.020)

4.57

(.180)

3339W

4.78

(.188)

8.00

.38

(.315

.015)

8.13

.38

(.320

.015)

9.53

.38

(375

.015)

5.54

.38

(.218

.015)

MIN.

2.54

.025

(.10

.01)

2.54

(.100)

2.54

(.100)

2.54

(.100)

5.97

(.235)

7.62

(.300)

.64

(.025)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

.51

(.020)

4.57

(.180)

DIA.

.43

.05

(.017

.002)

DIA.

MIN.

.38

(.015) MIN.

.64
(.025)
.76
(.030)

LONG X

WIDE X

DEEP X

(2 PLACES)

CLOCKWISE

CCW

WIPER

AVAILABLE

THROUGH

DISTRIBUTION

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

*”FLUORINERT” IS A REGISTERED TRADEMARK OF 3M CO.

SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

Specifications are subject to change without notice.

3352 - 3/8” Round Trimming Potentiometer

Features

■

Single-Turn / Cermet / Industrial / Open
Frame

■

Stable cermet element offers infinite
resolution

■

Very low profile

■

Seven standard pin styles

■

Thumb and screwdriver adjustment

Electrical Characteristics

Standard Resistance Range

..................................10 to 2 megohms

(see standard resistance table)

Resistance Tolerance .............±20% std.

(tighter tolerance available)

Absolute Minimum Resistance

.........................................2 ohms max.

Contact Resistance Variation

.............................1.0% or 1 ohm max.

(whichever is greater)

Adjustability

Voltage .....................................±0.05%
Resistance ...............................±0.25%

Resolution.....................................Infinite
Dielectric Strength

Sea Level .................................500 vac
80,000 Feet ..............................350 vac

Adjustment Angle ...................205° nom.

Environmental Characteristics

Power Rating (250 volts max.)

85°C.......................................0.50 watt
125°C..........................................0 watt

Temperature Range

...................................-55°C to +125°C

Temperature Coefficient

±100ppm/ºC ............................2K & up
±150ppm/ºC..........................Below 2K

Humidity........MIL-STD-202 Method 103

96 hours

(2%

∆

TR, 10 Megohms IR)

Vibration............30G (2%

∆

TR; 2%

∆

VR)

Shock..............100G (2%

∆

TR; 2%

∆

VR)

Load Life

...............1,000 hours 0.5 watt @ 85°C

(3%

∆

TR)

Rotational Life ........................200 cycles

(10%

∆

TR)

Physical Characteristics

Mechanical Angle ...................250° nom.
Torque .............................3.0 oz-in. max.
Stop Strength .....................8 oz -in. min.
Terminals ........................Solderable pins
Weight ........................................0.01 oz.
Marking ...........................Manufacturer’s

trademark, resistance value

and model number.

Date code on packaging.

Wiper ..............................Set at CW end
Standard Packaging

..................................100 pcs. per bag

Adjustment Tool ..............................H-90

CLOCKWISE

CCW

WIPER

3.81

.51

(.150

020)

.64

(.025)

1.27

(.050)

8.89

(.350)

5.08

(.200)

X .86
(.034)
X .84
(.033)

9.53

.38

(.375

.015)

.51

.05

(.020

.002)

7.62

(.300)

3352

3352E Top Adjust

10.16

(.400)

2.54

(.100)

5.33

(.210)

3352P

3352T

2.21

.38

(.087

.015)

3352H Side Adjust

7.62

(.300)

4.75

(.187)

3352K

3352V

9.14

(.360)

4.37

(.172)

5.08

(.200)

3352W

3.96

(.156)

WIDE

DEEP TYP.

TYP.

4.75

(.187)

TYP.

DIA. PINS TYP.

MAX.

2.54

(.100)

TYP.

2.54

(.100)

TYP.

2.54

(.100)

4.06

(.160)

5.33

(.210)

MAX.

2.54

(.100)

TYP.

2.54

(.100)

TYP.

2.54

(.100)

TYP.

2.54

(.100)

TYP.

2.54

(.100)

TYP.

MIN. TYP.

MAX.

7.62

(.300)

MAX.

TYP.

ADJUSTMENT SLOT

LONG

How To Order

3352 W - 1 - 103

Model

Style

Standard or Modified

Product Indicator

-1 = Standard Product

Resistance Code

Consult factory for other available options.

Resistance

(Ohms)

Code

100

200

500

100

101

200

201

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

25,000

253

50,000

503

100,000

104

200,000

204

250,000

254

500,000

504

1,000,000

105

2,000,000

205

Standard Resistance Table

Popular values listed in boldface. Special
resistances available.

AVAILABLE

THROUGH

DISTRIBUTION

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

Specifications are subject to change without notice.

3362 - 1/4” Square Trimming Potentiometer

Features

■

Single-Turn / Cermet / Industrial / Sealed

■

Miniature package

■

Rotor designed for automatic machine
adjust interface

■

Withstands harsh environments and
immersion cleaning processes

■

Available on tape and reel packaging
(see page 71)

Electrical Characteristics

Standard Resistance Range

..................................10 to 2 megohms

(see standard resistance table)

Resistance Tolerance .............±10% std.

(tighter tolerance available)

Absolute Minimum Resistance

.......................................1% or 2 ohms

(whichever is greater)

Contact Resistance Variation

..............................1% or 3 ohms max.

(whichever is greater)

Adjustability

Voltage .....................................±0.05%
Resistance ...............................±0.15%

Resolution.....................................Infinite
Insulation Resistance ................500 vdc.

1,000 megohms min.

Dielectric Strength

Sea Level .................................900 vac
80,000 Feet ..............................350 vac

Adjustment Angle ...................240° nom.

Environmental Characteristics

Power Rating (300 volts max.)

70°C.......................................0.50 watt
125°C..........................................0 watt

Temperature Range

...................................-55°C to +125°C

Temperature Coefficient

.........................................±100ppm/°C

Seal Test ........................85°C Fluorinert*
Humidity........MIL-STD-202 Method 103

96 hours

(2%

∆

TR; 10 Megohms IR)

Vibration............30G (1%

∆

TR; 1%

∆

VR)

Shock..............100G (1%

∆

TR; 1%

∆

VR)

Load Life

...............1,000 hours 0.5 watt @ 70°C

(3%

∆

TR; 3% or 3 ohms,

whichever is greater, CRV)

Rotational Life ........................200 cycles

(4%

∆

TR; 3% or 3 ohms,

whichever is greater, CRV)

Physical Characteristics

Mechanical Angle ...................270° nom.
Torque .............................3.0 oz-in. max.
Stop Strength ..................7.0 oz -in. min.
Terminals ........................Solderable pins
Weight ........................................0.02 oz.
Marking .......................Resistance code,

terminal numbers, manufacturer’s

model number, style

and date code

Wiper ..........Positioned at 50% nominal
Flammability ..........................U.L. 94V-0
Standard Packaging .....50 pcs. per tube
Adjustment Tool ..............................H-90

6.60

(.260)

ADJ. CROSS
SLOT

LONG X

WIDE X

DEEP X

3.84

(.151)

.254

(010)

4.70

(.185)

5.46

.38

(.215

.015)

.330

(.013)

.46

.03

(.018

.001)

Common Dimensions
Top Adjust

3362

Common Dimensions
Side Adjust

3362

2.29

(.090)

3362H

4.06

.38

(.160

.015)

3362P

3.53

(.139)

3362R

1.02

(.040)

3362U

PIN MARKING
REVERSED FOR
STYLE W

3362M

3362S

3362W

3362X

2.54

(.100)

2.77

(.109)

.64

(.025)

.89

(.035)

ADJ. CROSS SLOT

LONG X

WIDE X

DEEP X

2.77

(.109)

.64

(.025)

.89

(.035)

2.54

(.100)

2.54

(.100)

2.54

(.100)

3.53

(.139)

1.80

(.071)

5.46

.38

(.215

.015)

2.54

(.100)

2.54

(.100)

1.02

(.040)

1.02

(.040)

1.02

(.040)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100) TYP.

6.99

(.275)

6.99

(.275)

6.60

(.260)

3.84

(.151)

4.70

(.185)

4.70

(.185)

4.70

(.185)

4.70

(.185)

DIA.

3 PLCS.

.46

.03

(.018

.001)

DIA.

3 PLCS.

TYP.

.25

(010)

TYP.

3 3

6 2

AVAILABLE

THROUGH

DISTRIBUTION

CLOCKWISE

CCW

WIPER

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

*”FLUORINERT” IS A REGISTERED TRADEMARK OF 3M CO.

Specifications are subject to change without notice.

3364 - 4mm Square Trimming Potentiometer

Electrical Characteristics

Standard Resistance Range

.......................100 ohms to 1 megohm

(see standard resistance table)

Resistance Tolerance .............±25% std.
End Resistance

<1K ................................20 ohms max.
>1K..................................................2%

Contact Resistance Variation

(Voltage Divider) .....................5% max.

Resolution.....................................Infinite
Adjustment Angle.....................260°±20°

Environmental Characteristics

Power Rating (50 volts max.)

70°C.........................................0.2 watt

Temperature Range

...................................-40°C to +125°C

Temperature Coefficient

.........................................±250ppm/°C

Humidity..................500 hours (5%

∆

TR)

Load Life .................................500 hours

0.2 watt @ 70°C (5%

∆

TR)

Rotational Life .......20 cycles (15%

∆

TR)

Physical Characteristics

Torque..............................20 to 200g-cm
Mechanical Angle .................Continuous
Marking ........................Resistance code,

manufacturer's full part number

and date code on packaging

Terminals...........................Solder coated
Standard Packaging

..................................1000 pcs./7" reel

Adjustment Tool ..............................H-90
Reflow solder processing recommended

CLOCKWISE

CCW

WIPER

Common Dimensions
3364W, X
3-Terminal

1.00

(.039)

SUGGESTED PWB LAYOUT

2.30

(.091)

2.40

(.094)

5.10

(.201)

3.80

(.150)

2.50

0.15

(.098

.006)

2.00

(.079)

4.50

(.177)

2.20

(.087)

.12

(.047)

0.80

(.031)

1.40

(.055)

1.10

(.043)

0.55

0.15

(.022

.006)

MAX.

ADJ.
CROSS SLOT
0.55

.15

(.022

.006)

0.35
(.014)
2.50
(.098)

WIDE X

DEEP X

LONG

1.50

(.059)

1.50

(.059)

1.60

(.063)

0.95

(.037)

0.95

(.037)

1.60

(.063)

1.30

(.051)

1.50

(.059)

1.30

(.051)

3364A, B
3-Terminal

1.50

(.059)

2.40

(.094)

0.80

(.031)

5.08

(.200)

1.10

(.043)

SUGGESTED PWB LAYOUT

3.80

(.150)

2.50

0.15

(.098

.006)

0.55

0.15

(.022

.006)

2.00

(.079)

4.20

(.165)

2.20

(.087)

0.99

(.039)

0.80

(.031)

2.00

(.079)

1.20

(.047)

1.35

(.053)

0.50

(.020)

0.80

(.031)

0.80

(.031)

1.90

(.075)

1.40

(.055)

0.60

(.024)

1.20

(.047)

1.20

(.047)

1.20

(.047)

0.60

(.024)

MAX.

1.50

(.059)

Features

■

SMD Single-Turn / Cermet / Industrial
Open Frame

■

Cross slot rotor designs suitable
for automatic adjustment equipment

■

Supplied in 12mm embossed tape,
compatible with automatic pick-and-place
assembly equipment

■

Recommended for reflow solder
processing only

AVAILABLE

THROUGH

DISTRIBUTION

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

How To Order

3364 X - 1 - 103 E

Model

Style

Orientation of parts in tape:

Styles W,A
Terminals toward sprocket holes

Styles X,B
Terminals away from sprocket
holes

Standard Product

Resistance Code

Embossed Tape Designator

E = 1000 pcs./7" reel (-1 standard)
G =

5000 pcs./14.5" reel (-1 optional)

Consult factory for other available options.

SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

Specifications are subject to change without notice.

Resistance

Part

(Ohms)

Code

Marking

100

101

200

201

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

50,000

503

100,000

104

200,000

204

500,000

504

1,000,000

105

4.30

0.20

(.169

.008)

5.51

0.05

(.217

.002)

2.00

0.10

(.079

.004)

4.00

0.10

(.157

.004)

1.75

0.10

(.069

.004)

12.00

0.30

(.472

.012)

Conforms with EIA specification RS-481.

13.00

0.51

(.512

.020)

178

.20

(7.008

.008)

EQUAL

SPACED

3 PLCS.

1.50

(.059)

13.00

1.50

(512

.060)

1.20

.05

(.047

.002)

REEL

TAPE

2.20

0.20

(.087

.008)

0.60

(.024)

1.50

0.10

(.059

.004)

21.01

0.76

(.827

.030)

50.00

(1.969)

W, A
ORIENTATION

X, B
ORIENTATION

5.00

0.20

(.197

.008)

8.00

0.10

(.315

.004)

DIA.

REF.

DIA.

MIN.

Packaging Specifications

Standard Resistance Table

Popular values listed in boldface. Special
resistances available.

3364 - 4mm Square Trimming Potentiometer

Specifications are subject to change without notice.

Features

■

Surface Mount / Single-Turn Cermet /
Process Sealed

■

Elastomer seal allows multiple
adjustments (5 rotations)

■

Compatible with all surface mount
manufacturing processes

■

Recommended for reflow processing only

■

Cross-slot rotor design suitable for
automatic adjustment equipment

■

Supplied in 12mm embossed tape,
compatible with automatic pick-and-place
assembly equipment

■

Patent #5,095,298

■

Plastic rotor minimizes RF & ESD
concerns

3374 - 4mm Square Trimming Potentiometer

Electrical Characteristics

Standard Resistance Range

..................................10 to 2 megohms

(see standard resistance table)

Resistance Tolerance .............±20% std.
End Resistance........1% or 2 ohms max.

(whichever is greater)

Contact Resistance Variation

..............................3% or 3 ohms max.

(whichever is greater)

Resolution.....................................Infinite
Adjustment Angle ...................240º nom.
Maximum Voltage ...........................200V

Environmental Characteristics

Power Rating

70°C.......................................0.25 watt
125°C..........................................0 watt

Operating Temperature Range

...................................-55°C to +125°C

Temperature Coefficient

<500K ohms.....................±100ppm/°C

≥

500K ohms.....................±150ppm/°C

Seal ......................................5 turns min.
Humidity ........MIL-STD 202 Method 103
Vibration ........20G; TRS ±1%, VRS ±1%
Shock ..........100G; TRS ±1%, VRS ±1%
Load Life (@70ºC Rated Power,

1000 hours) ...........................TRS ±3%

Rotational Life ......100 cycles; TRS ±3%
Thermal Shock ...........................5 cycles

TRS ±2%, VRS ±1%

Physical Characteristics

Torque.............................18 - 180gm/cm
Mechanical Angle .................Continuous
Marking ..........Manufacturer’s trademark

and part marking code

Wiper ..........Positioned at 50% nominal
Standard Packaging ......750 pcs./7” reel
Adjustment Tool ..............................H-90

1.40

(.055)

.99

(.039)

3.99

(.157)

.99

(.039)

3.17

(.125)

6.78

(.267)

1.98

(.078)

CLOCKWISE

CCW

WIPER

4.01

(.158)

1.78

(.070)

3.56

(.140)

1.93

(.076)

4.90

(.193)

1.97

(.078)

.76

(030)

3.96

(.156)

0.74

(.029)

0.61

(.024)

ADJ. SLOT
.48
(.019)
.38
(.015)
2.54
(.100)

WIDE

DEEP

LONG

2 PLCS.

MAX.

TYP. 2 PLCS.

TYP.

2 PLCS.

8.00

.10

(.315

.004)

4.29

.20

(.169

.008)

12.00

.30

(.472

.012)

1.75

.10

(.069

.004)

2.00

.05

(.079

.002)

3.98

.10

(.157

.004)

5.00

.20

(.197

.008)

2.69

.20

(.106

.008)

.30 + .025/- .076

(.012 + .001/- .003)

MAX.

X Orientation Shown

Packaging Specifications

Standard Resistance Table

Popular values listed in boldface. Special
resistances available.

How To Order

3374 X - 1 - 502 E

Model

Style

Orientation of Parts in Tape:

Style W - Terminals Toward
Sprocket Holes

Standard or Modified

Product Indicator

-1 = Standard Product

Resistance Code

Embossed Tape

750 pcs./7” reel (standard)

Consult factory for other available options.

3374X/W

21.01

.76

(.827

.030)

DIA.

13.0

.50

(.512

.020)

DIA.

177.8

2.03

(7.000

.080)

EQUAL

SPACED

3 PLCS.

1.73

(.068)

14.0

1.5

(.551

.59)

2.0

(.079)

59.2

(2.331)

DIA.

REF.

MIN.

TAPE

REEL

Meets EIA 481

Resistance

Part Marking

Resistance

(Ohms)

Code

100

200

500

100

101

200

201

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

50,000

503

100,000

104

200,000

204

500,000

504

1,000,000

105

2,000,000

205

AVAILABLE

THROUGH

DISTRIBUTION

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

Specifications are subject to change without notice.

3386 - 3/8” Square Trimming Potentiometer

How To Order

3386 P - 1 - 103 T

Model

Style

Standard or Modified

Product Indicator

-1 = Standard Product
-EY5 = Extended Shaft

Resistance Code

Optional Suffix Letter

T =

Knob

Consult factory for other available options.

Resistance

(Ohms)

Code

100

200

500

100

101

200

201

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

25,000

253

50,000

503

100,000

104

200,000

204

250,000

254

500,000

504

1,000,000

105

2,000,000

205

Standard Resistance Table

Special resistances available.

Features

■

Single Turn / Cermet / Industrial / Sealed

■

Available on tape and reel (see page 71
for details)

■

Available with a knob for finger adjust

■

Available with extended shaft

■

Available with cross-slot rotor

■

Top and side adjust types (F, P, H, W, X
most popular)

■

High voltage types available
(see page 61 for details)

Electrical Characteristics

Standard Resistance Range

..................................10 to 2 megohms

(see standard resistance table)

Resistance Tolerance .............±10% std.

(tighter tolerance available)

Absolute Minimum Resistance

.........................................2 ohms max.

Contact Resistance Variation

..............................2% or 3 ohms max.

(whichever is greater)

Adjustability

Voltage .....................................±0.05%
Resistance ...............................±0.15%

Resolution.....................................Infinite
Insulation Resistance ................500 vdc.

1,000 megohms min.

Dielectric Strength

Sea Level .................................900 vac
70,000 Feet ..............................350 vac

Adjustment Angle ...................280° nom.

Environmental Characteristics

Power Rating (300 volts max.)

85°C.........................................0.5 watt
125°C..........................................0 watt

Temperature Range

...................................-55°C to +125°C

Temperature Coefficient

.........................................±100ppm/°C

Seal Test ........................85°C Fluorinert*
Humidity........MIL-STD-202 Method 103

96 hours

(2%

∆

TR, 10 Megohms min.)

Vibration............30G (1%

∆

TR; 1%

∆

VR)

Shock..............100G (1%

∆

TR; 1%

∆

VR)

Load Life

...............1,000 hours 0.5 watt @ 70°C

(3%

∆

TR; 1% or 1 ohm,

whichever is greater, CRV)

Rotational Life ........................200 cycles

(4%

∆

TR; 1% or 1 ohm,

whichever is greater, CRV)

Physical Characteristics

Mechanical Angle ...................310° nom.
Torque .............................5.0 oz-in. max.
Stop Strength ................15.0 oz -in. min.
Terminals ........................Solderable pins
Weight ........................................0.03 oz.
Marking ...........................Manufacturer’s

trademark, resistance code,

wiring diagram, date code,

manufacturer’s model

number and style

Standard Packaging

...................................50 pcs. per tube

Wiper Positioned at 50% Nominal
Adjustment Tool ..............................H-90

9.53

(.375)

5.33

(.210)

.51

.05

(.020

.002)

5.97

.89

(.235

.035)

.38

(.015)

Common Dimensions
Side Adjust

3.56

.38

(.140

.015)

3.81

(.150)

4.83

(.190)

3386B

2.54

(.100)

3386C

1.40

.38

(.055

.015)

3386H

2.44

(.096)

3.81

(.150)

3386J

2.44

(.096)

3386S

2.44

(.096)

3386W

3386X

ADJ. SLOT
.76
(.030)
.76
(.030)
3.15
(.124)

3.56

.38

(.140

.015)

1.40

.38

(.055

.015)

3.81

(.150)

WIDE

DEEP

LONG

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

3.81

(.150)

9.53

(.375)

MIN.

DIA. PINS

3.81

(.150)

3.81

(.150)

AVAILABLE

THROUGH

DISTRIBUTION

*”FLUORINERT” IS A REGISTERED TRADEMARK OF 3M CO.

SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

Specifications are subject to change without notice.

3.05

.38

(.120

.015)

Common Dimensions
Top Adjust

3386F

5.08

(.200)

2.24

.38

(.088

.015)

3386K

2.54

.25

(.100

.010)

3386M

3386P

4.78

.38

(.188

.015)

3386R

1.22

.38

(.048

.015)

3386T

1 2 3

.76

.38

(.030

.015)

3386U

3 2 1

3.05

.38

(.120

.015)

3386Y

9.53

(.375)

9.53

(.375)

4.83

(.190)

5.97

.89

(.235

.035)

.51

.05

(.020

.002)

5.64

(.222)

.38

(.015)

5.08

(.200)

MIN.

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2.54

(.100)

2 PLCS.

2.54

(.100)

2.54

(.100)

2.54

(.100)

3.81

(.150)

3.81

(.150)

3.81

(.150)

3.81

(.150)

4.78

.38

(.188

.015)

ADJ. SLOT
.76
(.030)
.76
(.030)
3.15
(.124)

WIDE

DEEP

LONG

3386G

3.56

0.38

(.140

.015)

ADJ. SLOT
.76
(.030)
.97
(.038)
3.05
(.120)

COMMON TO
3386V

WIDE

DEEP

LONG

10.16

0.25

(.400

.010)

3386V

1.40

(.055)

2.54

(.100)

2.54

(.100)

2.54

(.100)

5.64

(.222)

3.56

.38

(.140

.015)

The Model 3386 is available with a knob for finger
adjustment. Add suffix letter "T" to order code for
F, P and X terminal styles.

5.59

(.220)

4.83

(.190)

10.41

.51

(.410

.020)

6.60

(.260)

8.38

(.330)

ADJ. SLOT
5.59
(.220)
1.02
(.040)
1.40
(.055)

WIDE

DEEP

LONG

1.40

(.055)

2.54

(.100)

3.71

(.146)

2.54

(.100)

2.54

(.100)

7.87

(.310)

3.71

(.146)

7.87

(.310)

ADJ. SLOT
.76
(.030)
2.54
(.100)
3.71
(.146)

WIDE

DEEP

LONG

3386H-EY5
3386X-EY5 – SHOWN

3386P-EY5

4.78

(.188)

2.54

(.100)

2.54

(.100)

2.54

(.100)

CLOCKWISE

CCW

WIPER

SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

3386 - 3/8” Square Trimming Potentiometer

Specifications are subject to change without notice.

3386 HV2/3386 HV3 - 3/8” Trimming Potentiometer

Features

■

3/8” Square / Single-Turn / Cermet
Industrial / Sealed High Voltage
Focus Control

■

Designed for electrostatic focus control
applications on monochrome or

color CRTs

■

Rated at 1KV D.C. and 600 VDC input
voltage

■

High stability cermet element

■

Available with optional red knob

Electrical Characteristics

Standard Resistance Range

..............................2.5 and 5 megohms

Resistance Tolerance ....................±20%
Contact Resistance Variation

...............................................2% max.

Adjustability

Voltage Divider .........................±0.05%
Rheostat...................................±0.15%

Resolution.....................................Infinite
Insulation Resistance @ 1KV D.C.

............................1,000 megohms min.

Dielectric Strength (5,000 foot altitude)

...................................1.5 KV A.C. min.

Adjustment Angle ...................280° nom.

Environmental Characteristics

HV2 Input Voltage

85°C ..............................(1 KVDC max.)
125°C..........................................0 watt

HV3 Input Voltage

85°C.............................(600 VDC max.)
125°C..........................................0 watt

Temperature Range

...................................-55°C to +125°C

Temperature Coefficient

.........................................±400ppm/°C

Humidity........MIL-STD-202 Method 103

240 Hours (100 megohms min. IR)

Load Life

HV2 ......................1,000 hours 1 KVDC

60°C, 90% R.H. (3% max.

∆

TR)

HV3.....................1,000 hours 600 VDC

60°C, 90% R.H. (3% max.

∆

TR)

Voltage Breakdown

(5,000 foot altitude) ............1.5 KV min.

Seal Test ........................85°C Fluorinert*
Vibration ................No discontinuity 30G
Shock ..................No discontinuity 100G
Rotational Life ................200 cycles min.

Physical Characteristics

Mechanical Angle ...................310° nom.
Torque .............................5.0 oz-in. max.
Stop Strength ................15.0 oz -in. min.
Terminals ........................Solderable pins
Weight ........................................0.04 oz.
Marking ...........................Manufacturer’s

trademark, resistance code,

wiring diagram, date code,

manufacturer’s model

number and style

Flammability ..........................U.L. 94V-0
Standard Packaging .....50 pcs. per tube
Adjustment Tool ..............................H-90

3386N
Common Dimensions

3.81

(.150)

5.08

(.200)

5.97

.89

(.235

.035)

4.83

(.190)

3.05

(.120)

.38

(.015)

.51

.05

(.020

.002)

9.53

(.375)

3386U

5.59

(.220)

Typical Focus Control Circuits

ANODE
VOLTAGE
10-18 KV.
TYP.

G4
FOCUS
0-600V
ADJ. RANGE
TYP.

†

3386N-HV3-255

3386U-HV3-255

MONOCHROME

† VALUES DETERMINED BY CIRCUIT VOLTAGES

ANODE
VOLTAGE
21-27 KV.
TYP.

G4
FOCUS
6-7 KV.
TYP.

0-1 KV.
FOCUS
RANGE

3386N-HV2-505

3386U-HV2-505

COLOR

3.81

(.150)

9.53

(.375)

3.81

(.150)

MIN.

5.08

(.200)

.38

(.015)

5.08

(.200)

MIN.

DIA.

.51

.05

(.020

.002)

DIA. PINS

3.81

(.150)

3.81

(.150)

ADJ. SLOT
.76
(.030)
2.54
(.100)
3.81
(.150)

WIDE

DEEP

LONG

CLOCKWISE

CCW

WIPER

How To Order

3386 N - HV2 - 505 T

Model

Style

High Voltage
Construction Indicator

HV2 = 1000 VDC
HV3 = 600 VDC

Resistance Code

-255 = 2.5 megohms
-505 = 5 megohms

Optional Suffix Letter

T = Red Knob

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

*”FLUORINERT” IS A REGISTERED TRADEMARK OF 3M CO.

SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

Specifications are subject to change without notice.

Resistance

(Ohms)

Code

100

101

200

201

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

50,000

503

100,000

104

200,000

204

500,000

504

1,000,000

105

3386-OT1 - 3/8” Square Trimming Potentiometer

Features

■

Single-Turn / Cermet / Industrial / Sealed

■

Designed for operational amplifier offset
voltage adjustment applications

■

Reduces power supply drift errors

■

Unique center tapped trimming
potentiometer

■

Vertical adjust type available

Electrical Characteristics

Standard Resistance Range

.......................100 ohms to 1 megohm

(see standard resistance table)

Resistance Tolerance .............±20% std.
Absolute Minimum Resistance

.........................................2 ohms max.

Voltage Output Variation.............±0.25%
Adjustability (VR) ......................±0.025%
Insulation Resistance @ 500 vdc

............................1,000 megohms min.

Dielectric Strength

Sea Level .................................900 vac
70,000 Feet ..............................350 vac

Effective Electrical Travel ........280° nom.
Center Tap Resistance .......2 ohms max.
Center Tap Electrical Center............±5%
Center Tap Dead Band...................6°±4°

Environmental Characteristics

Power Rating

85°C.........................................0.5 watt
150°C..........................................0 watt

Temperature Range

...................................-55°C to +150°C

Temperature Stability (

∆

VR)

..........................................±0.5% max.

Seal Test ........................85°C Fluorinert*
Humidity........MIL-STD-202 Method 103

96 hours ±2%

∆

TR 10 Megohms min.

Vibration, 30G .........................±1%

∆

Shock, 100G ...........................±1%

∆

Load Life, 1,000 Hours ............±3%

∆

Rotational Life, 200 cycles ......±4%

∆

Physical Characteristics

Mechanical Angle ...................310° nom.
Torque .............................5.0 oz-in. max.
Stop Strength .................15.0 oz-in. min.
Terminals ........................Solderable pins
Weight ........................................0.03 oz.
Marking ...........................Manufacturer’s

trademark, resistance code,

wiring diagram, date

code, manufacturer’s model

number and style

Flammability ..........................U.L. 94V-0
Standard Packaging

............................50 pcs. per tube/tray

Adjustment Tool ..............................H-90

Also see Model 3296-OT1, page 30.

4.83

(.190)

5.97

.89

(.235

.035)

3386P-OT1

4.70

.51

(.185

.030)

2.54

(.100)

9.53

(.375)

5.64

(.222)

.38

(.015)

9.53

(.375)

2.54

(.100)

2.54

(.100)

2.54

(.100)

MIN.

.51

.05

(.020

.002)

DIA.

ADJ. SLOT
.76
(.030)
.76
(.030)
3.81
(.150)

WIDE

DEEP

LONG

Standard Resistance Table

Popular values listed in boldface. Special
resistances available.

CLOCKWISE

CCW

WIPER

CENTER TAP

How To Order

3386 P - OT1 - 103

Model

Style

Catalog Product

Resistance Code

Suggested Offset Voltage Adjustment Circuit

OUTPUT

R4 = R5 + R6
OFFSET
ADJUSTMENT
RANGE = ±V (R3/R6)(R2/R2 + R5)
R2 & R4> R6

- INPUT

+ INPUT

R6
10

Ω

–V

R1 20K

Ω

BOURNS OFFSET TRIMMER

20K

Ω

DIMENSIONS ARE:

METRIC

(INCHES)

TOLERANCES: ± 0.25 (.010) EXCEPT WHERE NOTED

*”FLUORINERT” IS A REGISTERED TRADEMARK OF 3M CO.

SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

Specifications are subject to change without notice.

TC03 - Trimming Potentiometer

Electrical Characteristics

Standard Resistance Range

..................................100 to 1 megohm

(see standard resistance table)

Resistance Tolerance .............±25% std.
Absolute Minimum Resistance

≤

1K Ohms......................20 ohms max.

>1K Ohms .....................2% max. of TR

Contact Resistance Variation

................................................5% max.

Resolution...................................Infinite

Adjustment Angle....................270° ±20°

Environmental Characteristics

Resistance to Soldering Heat

.......260°C, 10 seconds, TRS max. 5%

Power Rating (50 VDC max.)

70°C .......................................0.10 watt

Temperature Range

......................................-40°C to +85°C

Temperature Coefficient

..........................................±250ppm/°C

Humidity .....................................95%RH

500 hours

TRS max. ........................................±5%
Load Life

.............@ 70°C rated power 500 hours

TRS ±5%

Rotational Cycling......................20 turns

TRS ±15%

Physical Characteristics

Torque.........................20-200g-cm max.
Mechanical Angle .................Continuous
Marking......................Part marking code
Standard Packaging

...................................2000 pcs./7” reel

Features

■

High temperature plastic rotor

■

Recommended for reflow processing

■

Rotor design compatible with pick and

place and automatic adjustment equipment

■

Supplied in 8mm embossed tape, compat-

ible with automatic assembly equipment

■

Cermet element

Applications

■

Car radios

■

Color printers

■

Cordless telephones

■

CCD Camera control modules

■

LCD modules

Standard Resistance Table

Popular values listed in boldface.

Resistance

Part Marking

Resistance

(Ohms)

Code

100

101

200

201

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

50,000

503

100,000

104

200,000

204

500,000

504

1,000,000

105

TC03X-2
3mm Open Frame
for Reflow Soldering
3-Terminal

SUGGESTED PWB LAYOUT

1.85

(.072)

0.80

(.031)

2.80

(.110)

1.50

(.059)

1.90

(.074)

3.60

(.141)

3.00

(.118)

DIA.

0.95

(.037)

1.10

(.043)

1.50

(.059)

0.60

(.023)

1.30

(.051)

3.20

(.125)

1.60

(.062)

0.90

(.035)

1.00

(.039)

1.20

(.047)

3.00

(.118)

0.80

(.031)

1.50

(.059)

0.80

(.031)

CLOCKWISE

CCW

WIPER

How To Order

TC03 X - 2 - 103 E

Model

Style
Orientation of Parts
In Tape:
Style X: Terminals Away

From Sprocket
Holes

Standard or Modified
Product Indicator

-2 =

Cross Slot Rotor (Std. Product)

Resistance Code

Embossed Tape Designator

Consult factory for other available options.

DIMENSIONS ARE:

METRIC

(INCHES)

Specifications are subject to change without notice.

TC73 - Trimming Potentiometer

Electrical Characteristics

Standard Resistance Range

..................................500 to 1 megohm

(see standard resistance table)

Resistance Tolerance .............±30% std.
Absolute Minimum Resistance

≤

1K Ohms......................20 ohms max.

>1K Ohms .....................2% max. of TR

Contact Resistance Variation

................................................5% max.

Resolution...................................Infinite

Adjustment Angle...............260° ±20°(-2)

Environmental Characteristics

Resistance to Soldering Heat

.......240°C, 20 seconds, TRS max. 5%

Power Rating (50 VDC max.)

50°C .......................................0.05 watt

Temperature Range

......................................-25°C to +85°C

Temperature Coefficient

..........................................±250ppm/°C

Humidity .....................................95%RH

500 hours

TRS max. ..........................+15% to -2%
Load Life

.............@ 50°C rated power 500 hours

TRS ±5%

Rotational Cycling......................20 turns

TRS ±20%

Physical Characteristics

Torque.........................10-150g-cm max.
Mechanical Angle

.........................Continuous; 260° ± 20°

Marking......................Part marking code
Standard Packaging

...................................2000 pcs./7” reel

Soldering Process

Hand Soldering ....Soldering Iron of 20W

or less controlled at 280°C for about 3

sec. while applying solder

Reflow Soldering ........Peak temperature

or reflow oven should be

set to 240°C max.

Features

■

Recommended for reflow processing

■

Rotor design compatible with pick and

place and automatic adjustment equipment

■

Supplied in 8mm embossed tape, compat-

ible with automatic assembly equipment

■

Carbon element

Applications

■

Audio car radios

■

Satellite receivers - digital/analog

■

Computer power supplies

Standard Resistance Table

Popular values listed in boldface.

SUGGESTED PCB LAYOUT

0.50

(.019)

2.20

(.086)

TC73X/W-2

1.30

(.051)

0.65

(.025)

3.10

(.122)

1.80

(.070)

1.60

(.062)

3.60

(.141)

1.25

(.049)

1.20

(.047)

1.15

(.059)

0.80

(.031)

RESISTANCE

1.90

(.075)

1.50

(.059)

1.80

(.070)

0.80

(.031)

1.15

(.059)

0.80

(.031)

0.55

(.021)

0.35

(.013)

DRIVER

SLOT DEPTH

0.20

(.008)

1.80

(.070)

DIA.

DRIVER SLOT SHAPE

1.30

(.051)

1.20

(.047)

1.25

(.049)

0.80

(.031)

How To Order

TC73 X - 1 - 103 E

Model

Style
Orientation of Parts
In Tape:
Style X: Terminals Away

From Sprocket
Holes

Style W: Terminals in direction

to sprocket holes
(preferred)

Standard or Modified
Product Indicator

1 = Mechanical rotation stop

(preferred)

2 = Continuous

Resistance Code

Embossed Tape Designator

E = 2000 pcs. per reel, 8mm tape

Consult factory for other available options.

CLOCKWISE

CCW

WIPER

Resistance

Part Marking

Resistance

(Ohms)

Code

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

50,000

503

100,000

104

200,000

204

500,000

504

1,000,000

105

DIMENSIONS ARE:

METRIC

(INCHES)

Specifications are subject to change without notice.

TC76 - 6mm Carbon Trimming Potentiometer

Features

■

Dust-resistant enclosure

■

Polyester substrate

■

Available on tape and reel for automatic
insertion or in bulk for manual assembly

■

Adjustable front/back, top/bottom

■

Cross slot rotor design suitable for
automatic adjustment equipment

Applications

■

Power supplies

■

Cordless phones

■

Printer

■

Television sets

■

Audio equipment

Packaging Specifications

R: Tape and Reel (W, N, G)

A: Ammo Pack (W, N, G)

Bulk (B, Z, P)

Electrical Characteristics

Taper..........................................................................................................................Linear
Standard Resistance Range............................................................100 ohms – 1megohm
Resistance Tolerance ................................................................................................±30%
Maximum Voltage ..................................................................................................100VDC
Standard Nominal Resistance Value....................................................................See table
Residual Resistance ..........................................................................

≤

2% (min. 10 ohms)

Equivalent Noise Resistance ......................................................................................

≤

Environmental Characteristics

Power Rating ............................................................................................0.1 Watt @ 40°C
Operating Temperature.................................................................................-25°C to 70°C
Load Life ........................................................................1000 hours @ 40°C; 0.1W; ±10%
Mechanical Life (Cycles)......................................................100 @ 10CPM; ±3% (Rn <1M)
Temperature Coefficient ......................................................................................±300ppm
Thermal Cycling .........................................................16 hours @ 85°C; 2h @ -25°C; ±5%
Damp Heat.................................................................500 hours @ 40°C @ 95% HR; ±5%
Vibration ....................................................................2 hours @ 20g @ 10Hz…50Hz: ±2%

Physical Characteristics

Mechanical Angle................................................................................................280° ±10°
Electrical Angle ...................................................................................................245° ±25°
Rotational Torque ...........................................................................................0.2 to 3 Ncm
Stop-End Strength ..............................................................................................>3.5 Ncm

How to Order

TC76 B - 1 - 102 __

Model

Style
See drawings (B, Z preferred)

Standard or Modified
Product Indicator

-1 = Standard Product

Resistance Code

Optional Packaging Designator

(Standard = Bulk)
R = Tape & Reel (W, N, G)
A = Ammo Pack - preferred (W, N, G)

Adjustment Details

Top Adjust Styles G, N, P and Z

Side Adjust Styles B and W

Standard Resistance Table

Resistance

(Ohms)

Code

100

101

200

201

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

50,000

503

100,000

104

200,000

204

500,000

504

1,000,000

105

(2.047)

360

(14.173)

DIA.

260

(10.236)

338

(13.307)

(1.889)

(1.653)

185

(7.283)

(3.385)

0.9

(0.035)

3.8

(0.149)

0.9

(0.035)

4.2

(0.165)

2.5

(0.098)

2.15

(0.064)

5.2

(0.205)

7.6

(0.299)

(0.197)

3.7

(0.145)

6.3

(0.248)

0.8

(0.031)

2.8

(0.110)

0.9

(0.035)

4.2

(0.165)

0.9

(0.035)

3.8

(0.149)

0.8 +0.1/-0.2

(0.031 +.004/-.008)

0.5

0.07

(0.019

.003)

0.3

0.05

(0.012

.002)

2.5

(0.098)

5.2

(0.205)

8.7

(0.342)

6.4

(0.252)

(0.197)

2.8

(0.110)

0.8

(0.031)

(0.197)

3.7

(0.145)

SHADED AREAS TYPICALLY NOT STOCKED BY
DISTRIBUTORS AND NOT RECOMMENDED FOR NEW
DESIGNS.

Top Adjust:

750pcs

Side Adjust: 1000pcs

Top Adjust:

750pcs

Side Adjust: 1000pcs

500pcs

DIMENSIONS:

(IN)

CCW

CLOCKWISE

WIPER

Specifications are subject to change without notice.

TC76 - 6mm Carbon Trimming Potentiometer

Taped Model TC76W

PCB Layout

Taped Model TC76N (Preferred)

PCB Layout

Taped Model TC76G

PCB Layout

0.4

(0.015)

(0.078)

MAX.

0.5

(0.669

0.02)

28.7

(1.086

.039)

0.5

(0.787

.020)

5 +0.8/-0.2

(0.197 +.031/-.008)

3.85

0.7

(0.152

.028)

12.7

(0.500

.039)

0.5

(0.354

.020)

18 +1/-0.5

(0.708 +.039/-.020)

0.3

(0.236

.012)

0.3

(0.156

.012)

DIA.

12.7

0.3

(0.500

.012)

6.35

1.3

(0.250

.051)

0.05

(0.118

.002)

1.3 +0.1/-0

(0.051 +.004/-0)

DIA.

1 +0.1/-0

(0.039 +.004/-0)

DIA.

0.05

(0.197

.002)

0.4

(0.015)

(0.078)

MAX.

0.5

(.669

0.02)

27.6

(1.086

.039)

0.5

(0.787

.020)

5 +0.8/-0.2

(0.197 +.031/-.008)

12.7

0.3

(0.500

.012)

6.35

1.3

(0.250

.051)

12.7

(0.500

.039)

0.3

(0.236

.012)

0.3

(0.156

.012)

DIA.

3.85

0.7

(0.152

.028)

0.5

(0.354

.020)

18 +1/-0.5

(0.708 +.039/-.020)

2.5

0.05

(0.098

.002)

0.05

(0.197

.002)

1.3 +0.1/-0

(0.051 +.004/-0)

DIA.

1 +0.1/-0

(0.039 +.004/-0)

DIA.

0.4

(0.015)

(0.078)

MAX.

0.5

(0.669

0.02)

27.6

(1.086

.039)

0.5

(0.789

.020)

5 +0.8/-0.2

(0.197 +.031/-.008)

6.35

1.3

(0.250

.051)

12.7

0.3

(0.500

.012)

12.7

(0.500

.039)

0.3

(0.236

.012)

0.3

(0.156

.012)

DIA.

3.85

0.7

(0.152

.028)

0.5

(0.354

.020)

18 +1/-0.5

(0.708 +.039/-.020)

0.05

(0.118

.002)

1.3 +0.1/-0

(0.051 +.004/-0)

DIA.

1 +0.1/-0

(0.039 +.004/-0)

DIA.

0.05

(0.197

.002)

DIMENSIONS:

(IN)

Specifications are subject to change without notice.

TC76 - 6mm Carbon Trimming Potentiometer

Through-hole Model TC76B preferred

Through-hole Model TC76Z preferred

Through-hole Model TC76P

Crimped Terminals detail

0.8 +0.1/-0.2

(0.031 +.004/-.008)

0.5

0.07

(0.019

.003)

5.2

(0.205)

8.7

(0.342)

0.3

0.05

(0.012

.002)

2.5

(0.098)

6.4

(0.252)

3.6

(0.142)

(0.197)

(0.118)

(0.197)

2.5

0.05

(0.098

.002)

0.05

(0.197

.002)

1.3 +0.1/-0

(0.051 +.004/-0)

DIA.

1 +0.1/-0

(0.039 +.004/-0)

DIA.

5.2

(0.205)

8.7

(0.342)

(0.197)

3.7

(0.146)

7.6

(0.299)

1.5

(0.059)

0.3

0.05

(0.012

.002)

2.5

(0.098)

2.15

(0.085)

6.4

(0.252)

3.6

(0.142)

(0.118)

0.8

(0.032)

0.5

(0.019)

2.5

0.05

(0.098

.002)

0.05

(0.197

.002)

1.3 +0.1/-0

(0.051 +.004/-0)

DIA.

1 +0.1/-0

(0.039 +.004/-0)

DIA.

5.2

(0.205)

8.7

(0.342)

(0.197)

3.7

(0.146)

7.6

(0.299)

1.5

(0.059)

0.3

0.05

(0.012

.002)

(0.197)

6.4

(0.252)

3.6

(0.142)

(0.118)

0.8

(0.032)

0.5

(0.019)

1.3 +0.1/-0

(0.051 +.004/-0)

DIA.

(0.079)

DIA.

0.05

(0.197

.002)

1 +0.1/-0

(0.039 +.004/-0)

DIA.

0.05

(0.197

.002)

CRIMPING DETAIL

2.9

(0.114)

3.5

(0.137)

0.7

(0.027)

0.75

(0.029)

Specifications are subject to change without notice.

TDB06/TDB08/TDB10 - Trimming Potentiometer

Electrical Characteristics

Taper .........................................B (linear)
Standard Resistance Range

............................500 ohms to 1M ohm

(see standard resistance table)

Resistance Tolerance .............±30% std.
Nominal Resistance Value

...............See standard resistance table

Residual Resistance

.........................Max. 100 ohms or ±5%

Environmental Characteristics

Power Rating

TDB06 ....................................0.05 watt
TDB08/10 .................................0.1 watt

Temperature ...................+5% and -30%

resistance change

after 5 hours at 70°C

Load ...........5% resistance change max.

after 3 hours rated load

Humidity ...15% resistance change max.

after 5 hours in 95% RH at 40°

Load Life...20% resistance change max.

after rated load for 350 hours in

90% RH at 40°

Physical Characteristics

Mechanical Angle...................280° ± 20°
Rotational Torque...............20 - 300 gcm
Stop-End Strength ...........0.5 kgcm min.
Mechanical Strength Base ..1 kgcm min.
Contact Force ...........................20g min.
Rotational Life ................15% resistance

change max. after 100

rotational life tests

Soldering Condition .............260°C max.

within 3 seconds

Features

■

Dimensions of 6, 8 and 10mm

■

Carbon element

■

Open frame construction

■

Vertical or horizontal adjustment

Applications

■

Television sets

■

Low cost receivers

TDB06-5
TDB08-5
TDB10-4

1.2

(.047)

DIA.

3 PLACES

1.0

(.039)

3 PLACES

TDB06-6
TDB08-3
TDB10-8

1.2

(.047)

DIA.

3 PLACES

RECOMMENDED PCB LAYOUT

How To Order

TDB 08 - 3 103

Model

Size

• 06 = 6.5mm
• 08 = 8mm
• 10 = 10mm

Pin/Housing Style
(Refer to drawing)

Resistance Code
(See table)

Consult factory for other available options.

Standard Resistance Table

Resistance

(Ohms)

Code

500

501

1,000

102

2,000

202

5,000

502

10,000

103

20,000

203

50,000

503

100,000

104

200,000

204

500,000

504

1,000,000

105

TDB-06-5

TDB-08-5

TDB-10-4

6.6

.260

.315

.394

7.2

15.3

.283

.433

.602

3.6

7.3

.142

.157

.278

.118

.157

.197

3.8

.150

.157

6.9

.272

.394

.590

2.5

3.5

.089

.138

TDB-06-6

TDB-08-3

TDB-10-8

6.6

.260

.315

.394

7.2

15.3

.283

.433

.602

3.6

7.3

.142

.157

.278

3.5

.138

.157

.275

2.3

3.5

.090

.118

.138

2.5

.089

.039

2.5

.089

.039

2.5

.089

.197

Dimensions

DIMENSIONS ARE:

METRIC

(INCHES)

Specifications are subject to change without notice.

Model

Turns

Sealing

Element

Resistance

Power

Tolerance

Mechanical

Adjust

Temp.

Number

Single

Multi

Tech.

Range

Rating

Turns

Range

10 ohms

3005

•

Sealed

Wirewound

70°C - 1.0 watts

±10%

Side

-65°C -

50K ohms

125°C - 0 watt

+125°C

10 ohms

@ 400 volts max.

3009

•

Sealed

Cermet

70°C - 0.75 watts

±10%

Side

-55°C -

5 megohms

150°C - 0 watt

+150°C

10 ohms

@ 400 volts max.

3082

•

Sealed

Cermet

85°C - 0.3 watts

±10%

Side

-65°C -

2 megohms

150°C - 0 watt

+150°C

10 ohms

3345

•

Sealed

Wirewound

70°C - 1.0 watts

±5%

Top,

-55°C -

50K ohms

150°C - 0 watt

Side

+150°C

10 ohms

3373

•

Sealed

Cermet

70°C - .125 watts

±25%

Top,

-55°C -

2M ohms

125°C - 0 watt

Side

+125°C

Mounting

Model

Product

Surface Through-

Size

Circuit Board Layout

Number

Mount

Hole

3005

•

3/4” rectangular

3009

•

3/4” rectangular

3082

•

1/2” rectangular

3345

•

1/2” round

3373

•

3mm square

These optional trimmer products are not recommended for new designs. However, if you require technical
specifications, contact a Bourns representative in your area.

2.54

12.70

2.54

5.08

17.78

5.08

12.70

5.08

Optional Products

3.5

(.138)

2.25

(.089)

3.2

(.126)

SIDE ADJUST
3266Z-1-(RC)R

12.70

(.500)

.76

(.709

.030)

12.7 + 0.3/ - 0.25

(.500 + .012/ - .010)

18 + 1.0/ - 0.5

(709 + .040/ - .020)

24.9 + .76

(.980 + .030)

4.0

.03

(.157

.001)

3.81

.71

(.150

.028)

4.32

.38

(.170

.015)

2.16

.25

(.085

.010)

.43

.05

(017

.002)

TOP ADJUST
3266Y-1-(RC)R

12.70

(.500)

.76

(.709

.030)

4.0

.03

(.157

.001)

3.81

.71

(.150

.028)

25.9

0.76

(1.020

.030)

8.9 + .76 /- .5

(.035 + .030/ .020)

18 + 1.0/ - 0.5

(709 + .040/ - .020)

12.7 + 0.3/ - 0.25

(.500 + .012/ - .010)

4.32

.38

(.170

.015)

2.16

.25

(.085

.010)

3.81

.71

(.150

.028)

REF.

DIA.

DIA. TYP.

REF.

DIA.

8.9 + .76 /- .5

(.035 + .030/ .020)

ALL PINS IN-LINE ON CENTER

DIMENSIONS:

1000/REEL/BOX

2.54

(.100)

(INCHES)

ALL PINS IN-LINE ON CENTER

DIMENSIONS:

1000/REEL/BOX

2.54

(.100)

(INCHES)

3266*

Product specifications and
standard resistance values, page 20.

3296*

Product specifications and
standard resistance values, page 26.

Now there is a full assortment of Trimpot

Potentiometer models on tape and reel
or ammo pack packaging.

• These models are available taped and

packaged per EIA Standard 468.

• All models have been tested for

compatibility with popular radial
insertion machine models on the
market today.

How To Order

3362 M - 1 - 103 R

Model

Style

Standard Product

Resistance Code

Tape & Reel

Designator: Use “R” for Tape & Reel

Use “A” for Ammo Pack

SIDE ADJUST
3296X-1-(RC)R

12.70

(.500)

.76

(.709

.030)

8.89 + .76 /- .51

(.350 + .030 /- .020)

28.07

.76

(1.105

.030)

3.81

.71

(.15

.028)

4.83 + .30/ -.25

(.190 + .012/ -.010)

2.41

.25

(.095

.010)

TOP ADJUST
3296W-1-(RC)R

29.59

.76

(1.165

.030)

REF.

12.70

(.500)

REF.

12.7 + 0.3/ - 0.25

(.500 + .012/ - .010)

18 + 1.0/ - 0.5

(709 + .040/ - .020)

4.83 + .30/ -.25

(.190 + .012/ -.010)

4.0

.03

(.157

.001)

2.41

.25

(.095

.010)

DIA.

.76

(.709

.030)

4.0

.03

(.157

.001)

DIA.

12.7 + 0.3/ - 0.25

(.500 + .012/ - .010)

18 + 1.0/ - 0.5

(709 + .040/ - .020)

8.89 + .76 /- .51

(.350 + .030 /- .020)

3.81

.71

(.150

.028)

.51

.051

(020

.002)

DIA. TYP.

(.100)

2.54

ALL PINS IN-LINE ON CENTER

DIMENSIONS:

1000/REEL/BOX

2.54

(.100)

(INCHES)

ALL PINS IN-LINE ON CENTER

DIMENSIONS:

1000/REEL/BOX

2.54

(.100)

(INCHES)

Tape and Reel Packaging Specifications

Specifications are subject to change without notice.
*Patented models.

Specifications are subject to change without notice.

3362

Product specifications and standard

resistance values, pages 54 & 55.

3386

Product specifications and standard
resistance values, pages 59 & 60.

SIDE ADJUST
3362M-1-(RC)R

TOP ADJUST
3362U-1-(RC)R

REF.

DIA.

ALL PINS IN-LINE ON CENTER

DIMENSIONS:

1000/REEL/BOX

2.54

(.100)

(INCHES)

ALL PINS IN-LINE ON CENTER

DIMENSIONS:

750/REEL

2.54

(.100)

(INCHES)

12.70

(.500)

7.0

(.275)

22.7

.76

(.893

.029)

.76

(.708

.029)

4.0

0.3

(.157

.011)

3.56

.38

(.140

.014)

18 + .76/ -.5

(.708 + .029 -.019)

12.70 + 0.3/ - 0.25

(.500 + .011 -.009)

4.7

(.185)

7.0

(.275)

27.56

.76

(1.085

.030)

12.70

(.500)

REF.

18 + 1.0/ - 0.5

(.709 + .039 -.019)

12.7 + 0.3/ -0.25

(.500 + .012/ -.009)

DIA.

4.0

0.3

(.157

.011)

.76

(.708

.029)

2.3

.38

(.090

.014)

4.7

(.185)

SIDE ADJUST
3386W-1-(RC)R

12.70

(.500)

.76

(.709

.030)

12.70 + .30/ - 0.25

(.500 + .012/ - .010)

8.89 + .76 /- .50

(.350 + .030/ - .020)

18 + 1.0/ - 0.5

(.709 + .040/ - .020)

27.56

.76

(1.085

.030)

4.0

0.3

(.157

.012)

3.81

.71

(.15

.028)

4.83

.25

(.190

.010)

2.44

.25

(.096

.010)

TOP ADJUST
3386U-1-(RC)R

.51

.05

(.020

.002)

12.70

(.500)

18.03

0.7

(.710

.028)

12.7

0.3

(.500

.012)

8.89

0.7

(.350

.028)

22.98

.076

(.905

.030)

3.99

0.3

(.157

.012)

9.53

(.375)

4.78

(.188)

10.16

(.400)

3.18

0.7

(.125

.028)

DIA.

DIA. TYP.

REF.

MIN.

18.03

0.7

(.710

.028)

18.03

1.5

(.710

.060)

DIA.

REF.

ALL PINS IN-LINE ON CENTER

DIMENSIONS:

1000/REEL/BOX

2.54

(.100)

(INCHES)

ALL PINS IN-LINE ON CENTER

DIMENSIONS:

1000/REEL/BOX

2.54

(.100)

(INCHES)

3329

Product specifications and
standard resistance values, page 51.

SIDE ADJUST
3329M-1-(RC)R

12.70

(.500)

.76

(.709

.030)

12.70 + 0.3/ - 0.25

(.500 + .012/ - .010)

9.4

(.370

.020)

18 + 1.0/ - 0.5

(.709 + .039/ .020)

26.4

.76

(1.039

.030)

4.0

0.3

(.157

.012)

6.1

.25

(.240

.010)

3.43

.25

(.135

.010)

.43

.05

(.017

.002)

TOP ADJUST
3329U-1-(RC)R

4.0

0.3

(.157

.012)

6.35

(.250

.020)

2.79

.25

(.110

.010)

24.38

0.76

(.960

.030)

6.35

(.250)

REF.

DIA.

18 + 1.0/ - 0.5

(.709 + .039/ .020)

12.70 + 0.3/ - 0.25

(.500 + .012/ - .010)

DIA. TYP.

12.70

(.500)

REF.

MAX.

DIA.

ALL PINS IN-LINE ON CENTER

DIMENSIONS:

1000/REEL/BOX

2.54

(.100)

(INCHES)

ALL PINS IN-LINE ON CENTER

DIMENSIONS:

1000/REEL/BOX

2.54

(.100)

(INCHES)

Tape and Reel Packaging Specifications

Specifications are subject to change without notice.

TRIMPOT

POTENTIOMETER

PANEL MOUNTING OPTIONS
AND HARDWARE

Many Trimpot

Potentiometers are avail-

able for panel mount application.

This product option provides for maxi-
mum design flexibility.

To order Trimpot

Potentiometers with

panel mount hardware attached by the
factory, simply add an “M” or “Z”
suffix to the Bourns part number per
Table I, page 75.

Example:

3006P-1-100Z

To order military Trimpot®
Potentiometers with panel mount hard-
ware attached by the factory, order the
military part number and add “with panel
mount attached.”

Example:

RT12C2PRC, with panel mount
attached.

To order panel mounting accessories for
customer installation, simply use the part
number per Table II, page 75.

Example:

H83P

NOTE: For complete product specifica-
tions, see catalog page for the trimmer
model.

Torque - Apply maximum 8 in. lbs. on
mounting nut when mounted on panel.

6.76

.38

(.266

.015)

HEX NUT AND
LOCKWASHER

10.31

(.406)

7.95

(.313)

33.35

(1.31)

6.35

(.25)

1.52 TO 3.30

(.06 TO .13)

BUSHING
10-32
NF-2 THD

5.94

(.234)

ADJ. SLOT
2.54
(.100)
.635
(.020)
.762
(.030)

MAX.

LONG

WIDE

DEEP

Models 3005/3006/3009

3.81

(.150)

20.32

(.80)

6.35

(.25)

#10-32 UNF-2A THD.

2.54

(.100)

7.92

(.312)

PANEL MAX.

3.30

(0.13)

ADJ. SLOT
2.54
(.100 )
.508
(.020)
.762
(.030)

LONG

WIDE

DEEP

Models RT12/RJ12, 3057/3059

Factory Installed Panel Mount

NOTES:

1. PROVIDED WITH LOCKWASHER AND MOUNTING

NUT.

2. RECOMMEND PANEL HOLES. #10 DRILL

.194

(.008)

NOTES:

1. PROVIDED WITH LOCKWASHER AND MOUNTING

NUT.

2. RECOMMEND PANEL HOLE SIZE #7 DRILL

.200

(.008)

Specifications are subject to change without notice.

6.10

(.240)

3.05

(.120)

BUSHING
10-32 UNF-2A
THD.

OPT. BEND
DOWN ANTI-
ROTATION TAB

6.35

(.250)

10.92

(.430)

.826

.038

(.033

.020)

11.68

(.460)

PANEL

3.3

(.130)

MAX

7.37

(.290)

OPTIONAL FOR
ANTI-ROTATION NUB

= 7 DRILL

PANEL LAYOUT

NOTES:

Provided with lockwasher and mo nting n t

7.62

(.300)

4.06

(.160)

BUSHING
10-32 UNF-2A
THD.

OPT. BEND
DOWN ANTI-
ROTATION TAB

13.97

(.550)

11.43

(.450)

14.99

(.590)

10.16

(.400)

PANEL LAYOUT

6.10

(.240)

3.05

(.120)

BUSHING
10-32 UNF-2A
THD.

OPT. BEND
DOWN ANTI-
ROTATION TAB

11.43

(.450)

.826

.038

(.033

.020)

11.68

(.460)

PANEL LAYOUT

NOTES:
1 Provided with lockwasher and mo nting n t

ADJ. SLOT
.243
(.010)
.064
(.003)
.064
(.003)

LONG

WIDE

DEEP

.200

(.008)

.132

(.005)

OPTIONAL FOR
ANTI-ROTATION NUB

= 7 DRILL

.200

(.008)

.132

(.005)

OPTIONAL FOR
ANTI-ROTATION NUB

= 7 DRILL

.200

(.008)

.132

(.005)

7.37

(.290)

6.35

(.250)

PANEL

3.3

(.130)

MAX

6.35

(.250)

PANEL

3.3

(.130)

MAX

ADJ. SLOT
.243
(.010)
.064
(.003)
.064
(.003)

LONG

WIDE

DEEP

ADJ. SLOT
.243
(.010)
.064
(.003)
.064
(.003)

LONG

WIDE

DEEP

Models RT22/RTR22/RJ22 3250/3252

Models RT24/RTR24/3290

H and W Styles - 3290 X & W Styles-
RT24/RTR24

Models 3292

X, L and W Styles

Factory Installed Panel Mount

NOTES:

1. PROVIDED WITH LOCKWASHER AND MOUNTING

NUT.

NOTES:

1. PROVIDED WITH LOCKWASHER AND MOUNTING

NUT.

NOTES:

1. PROVIDED WITH LOCKWASHER AND MOUNTING

NUT.

Specifications are subject to change without notice.

H-65P Panel Mount

1/2 Inch Square
Multiturn Models

H-83P Panel Mount

Adapter for Models 3005 AND 3006

The H-83P Adapter is used with Models
3005 (page 69) and 3006 (page 9). Order
separately and simply snap fit the trim-
mer in the plastic case. The H-83P with
lock-washer and mounting nut is avail-
able in 50-piece lots.

H-58P Panel Mount

1-1/4 Inch Rectangular
Multiturn Modules

10.0

(.394)

HEX NUT AND
LOCKWASHER

10.31

(.406)

MAX.

7.95

(.313)

33.35

(1.31)

6.35

(.250)

BUSHING
10-32
NF-2 THD

5.94

(.234)

7.62

(.300)

4.06

(.160)

BUSHING
10-32 UNF-2A
THD.

OPT. BEND
DOWN ANTI-
ROTATION TAB

6.35

(.250)

13.97

(.550)

11.43

(.450)

14.99

(.590)

10.16

(.400)

PANEL LAYOUT

22.10

(.870)

7.62

(.300)

5/16-32
UNEF
THREAD

5.54

(.218)

9.53

(.375)

9.53

(.375)

ADJ. SHAFT
RECESSED 5/16

ADJ. SLOT
.243
(.010)
.064
(.003)
.064
(.003)

LONG

WIDE

DEEP

1.52

(.060)

3.30

(.130)

PANEL MAX.

3.30

(0.13)

ADJ. SLOT
2.54
(.100)
.635
(.250)
.762
(.030 )

LONG

WIDE

DEEP

= 7 DRILL

.200

(.008)

OPTIONAL FOR
ANTI-ROTATION NUB

.132

(.005)

SEE TABLE II (PAGE 75) FOR PANEL MOUNT PART NUMBER

Customer Installed Panel Mount - Unsealed

NOTES:

1. PROVIDED WITH LOCKWASHER AND MOUNTING

NUT.

2. RECOMMEND PANEL HOLES. #10 DRILL

.194

(.008)

NOTES:

1. PROVIDED WITH LOCKWASHER AND MOUNTING

NUT.

2. DRAWINGS SHOWN WITH TRIMMER. ORDER PART

SEPARATELY

NOTES:

1. DRAWINGS SHOWN WITH TRIMMER. ORDER PART

SEPARATELY

*SPECIFY H82 IF PANEL SEAL IS REQUIRED.

Specifications are subject to change without notice.

TABLE II

RETRO-FIT PANEL MOUNTS FOR INSTALLATION BY CUSTOMER

STANDARD PART NO.

ORDER PANEL MOUNT PART NO.

3005P-1-(RC)

H-83P

3006P,Y, or W-1-(RC)

H-83P

3057L,J,P, or Y-1-(RC)

H-58P* SCREW ASSEMBLY

3059L,J,P, or Y-1-(RC)

H-58P* SCREW ASSEMBLY

3250L, W, X-(RC)

H-65P-1*

3252L or W-1-(RC)

H-65P-3*

3252X-1-(RC)

H-65P-5*

3290 H or W-1-(RC)

H-114P*

3292L-1-(RC)

H-115P*

3292W OR X-1-(RC)

H-116P*

RT12P,Y,L

H-58P* SCREW ASSEMBLY

RJ12L,P,Y

H-58P* SCREW ASSEMBLY

RT22L,W, X, RTR22L,W, X

H-65P-1*

RJ22L,W

H-65P-3*

RJ22X

H-65P-5*

RT24W / RTR24W OR X

H-114P*

RJR24W OR X

H-116P*

*Specify H-82 if panel seal is required.

TABLE I

FACTORY INSTALLED PANEL MOUNTS

STANDARD PART NO.

PART NO. WITH PANEL MOUNT

3005P-1-(RC)

3005P-1-(RC) Z

3006P,Y, or W-1-(RC)

3006P,Y, or W-1-(RC) Z

3009P or Y-1-(RC)

3009P or Y-1-(RC) Z

3057L,J,P, or Y-1-(RC)

3057L,J,P, or Y-1-(RC) M

3059L,J,P, or Y-1-(RC)

3059L,J,P, or Y-1-(RC) M

3250L or W-1-(RC)

3250L or W-1-(RC) M

3252L or W-1-(RC)

3252L or W-1-(RC) M

3290 H or W-1-(RC)

3290H or W-1-(RC) M

3292L,W, or X-1-(RC)

3292L,W, or X-1-(RC) M

H-114P/115P/116P Panel Mount

6.10

(.240)

3.05

(.120)

BUSHING
10-32 UNF-2A
THD.

OPT. BEND
DOWN ANTI-
ROTATION TAB

6.35

(.250)

10.92

(.430)

(H-114P)

.826

.038

(.033

.002)

11.68

(.460)

7.37

(.290)

PANEL LAYOUT

11.43

(.450)

(H-115P)
(H-116P)

ADJ. SLOT
.243
(.010)
.064
(.003)
.064
(.003)

LONG

WIDE

DEEP

PANEL MAX.

3.30

(0.13)

= 7 DRILL

.200

(.008)

OPTIONAL FOR
ANTI-ROTATION NUB

.132

(.005)

Customer Installed Panel Mount

NOTES:

1. PROVIDED WITH LOCKWASHER AND MOUNTING

NUT.

2. DRAWINGS SHOWN WITH TRIMMER. ORDER PART

SEPARATELY

3/8 Inch Square Multiturn Models

Specifications are subject to change without notice.

.236

(.093)

.363

(.143)
1.321
(.520)

.178

(.070)

1.064
(.419)

.51

(.02)

H-25/H-28 Stacking Straps

Models 3250, 3252 (H-25) and 3292
(H-28).

H-26S Side Bracket

Models 3250 and 3252
This hardware is available for special
mounting applications.

H-82 Panel Seal

For all panel mounts with size 10-32
bushings.

7.37

(.290)

3.81

(.150)

4.83

(.190)

.381

(.015)

1.02

(.040)

STAINLESS STEEL
CUP WASHER

.89

(.035)

RUBBER O RING

9.35

(.368)

9.35

(.368)

4.57

(.180)

12.70

(.500)

23.62

(.930)

4 PLCS.

13.21

(.520)

4.01

(.158)

6.35

(.250)

6.35

(.250)

.325

(.013)

DIA.

2 PLCS.

6.35

(.250)

15.88

(.625)

4.83

(.190)

TYP.

DIMENSIONS

H-25

H-28

THICKNESS

.318

(.125)

To be used with the following to provide
panel seal:

H-58P
H-65P-1
H-65P-3
H-65P-5
H-114P
H-115P
H-116P

Hardware For Special Mounting Applications

Specifications are subject to change without notice.

■

Wide assortment of popular trimmers

■

Convenient, easy-to-use packaging

■

Single-turn and multiturn styles

■

Many configurations in both cermet and
wirewound element types

A complete assortment of the most popular through-hole
trimmer styles from Bourns Trimpot is contained in one
convenient package. The kit contains 126 parts representing
50 varieties of resistances and pin styles.

Select the size, shape, type of element, and method of adjust-
ment to suit your application.

■

Full line of surface mount products

■

Convenient, easy-to-use packaging

■

Single-turn, multiturn, sealed, open-frame
styles

■

Popular styles and ohmic values

A complete assortment of the most popular surface mount
products from Bourns Trimpot is contained in this convenient
lab design kit. It contains 220 parts in popular styles and
resistance values to help in your design selection.

Also included are complete performance parameters and
specifications for each model in the kit. Plus, a convenient
Adjustment Tool.

H-800 TrimBin

™

Trimmer Lab Design Kit

H-814 Surface Mount Lab Design Kit

H-90/H-91 - Adjustment Tools

Features

■

Meets UL 94V-0

■

Pocket clip

■

For use on most trimmer shafts/rotors

■

Recessed end for use with extended
shafts

THICK

127.00

(5.00)

1.27

(.050)

.254

(.010)

STAINLESS STEEL

BLADE

RECESSED

2.03

(.080)

BLADE - BOTH ENDS

.406

.025

(.016

.001)

WIDE X

THICK

15.2

2.54

(0.60

0.10)

H-90

H-91*

.254

(.010)

STAINLESS STEEL

BLADE

RECESSED

1.40

(.055)

2.29

(.090)

BLADE

.457

(.018)

WIDE X

BLADE

*H-91 RECOMMENDED FOR USE WITH TRIMMER MODELS 3224 AND 3214.

1.47

(.058)

.457

.025

(.018

.001)

WIDE X

THICK

Specifications are subject to change without notice.

H-200 - Adjustment Tool with a Light

Features

■

High intensity Xenon beam

■

Two tool tip sizes

■

Red and blue/green vision aid lenses

■

Approved for hazardous location use

TrimBeam

Makes It Easy to See and Access

Small Electronic Components

™

XENON BEAM

Twist the Head
toTurn Light
On/Off

CENELEC

PULL OFF

SHROUD...

MAKE SURE

SHROUD

SNAPS BACK

ONTO LENS

LENS

XENON
LAMP
MODULE

ALIGNMENT
TOOL
INSERTS
INTO
SHROUD

COLOR DISK
DROPS INTO
LENS

TRIMBEAM

120.65

(4.75)

1.52

(0.060)

38.1

(1.50)

WIDE TOOL TIP

NARROW TOOL TIP

12.7

(0.500)

2.80

(0.110)

DIA.

11.68

(0.460)

DIA.

1.02

(0.040)

MAX.

BLADE

2.67

(0.105)

0.89

(0.035)

15.75

(0.620)

0.56

(0.022)

2.80

(0.110)

37.08

(1.46)

12.7

(0.500)

2.80

(0.110)

DIA.

11.68

(0.460)

DIA.

1.02

(0.040)

MAX.

2.67

(0.105)

0.89

(0.035)

15.75

(0.620)

0.56

(0.022)

Specifications are subject to change without notice.

High-Rel Wirewound Specification MIL-R-39015 RTR Styles

This specification has a procedure for ordering, processing, and
marking parts entirely different than the other three
specifications. IT DOES NOT USE THE TYPE DESIGNATION
NUMBER AS THE PART NUMBER.

THE NUMBER TO ORDER BY CONSISTS OF:

The individual specification sheet number

M39015/2 (FOR STYLE RTR22)

M39015/3 (FOR STYLE RTR24)

A dash number from the specification sheet table for the
resistance value

M39015/2

M39015/3

–003 500

– 006 500

–004 1K

– 007 1K

–005 2K

– 008 2K

–006 5K

– 009 5K

–007 10K

– 010 10K

–008 20K

Terminal Type

Failure rate level M

M = 1%

% FAILURE/1,000 Hrs. — 60% Confidence

EXAMPLES OF PART NUMBERS

M39015/2 — 006LM

5K Term. Type L — Failure Rate M

M39015/3 — 010XM

10K Term. Type X — Failure Rate M

The table on the next page shows all part numbers covered by
this specification, the conversion to the RTR type designation
number required by the supplier to manufacture the part, and
the number that will be marked on the units you receive (same
as part number ordered but with the letter "J" in front of it). The
letter "J" is a government mark and it is certification that the
parts comply with the specification.

INFORMATION NOTES

1. M39015/3 WAS ADDED TO THE MIL-SPEC AFTER ITS ORIGINAL RELEASE.

Non-Wirewound RJR Styles - High Reliability

MIL-R-39035 RJR24 F W 102 P

Style

Characteristic

T.C. Max.

±100PPM°C

C.R.V. Max.

Thermal Shock

Humidity

Shock

Vibration

Load Life

2,000 Hrs.

10,000 Hrs.

Low Temp.

High Temp.

Rotational Life

Conditioning

1-1/2%

Terminal Type

Resistance Code

First Two Digits Significant
Last Digit No. Of Zeros
102 = 1,000 Ohms

Failure Rate

(% Failures/1,000 Hrs. — 60% Confidence)
M = 1.0%
P = 0.1%
R = .01%

Non-Wirewound RJ Styles

MIL-R-22097 RJ24 F W 103

Style

Characteristic

T.C. Max.

±100PPM°C

C.R.V. Max.

Thermal Shock

Humidity

Shock

Vibration

Load Life

Low Temp.

High Temp.

Rotational Life

Terminal Type

Resistance Code

First Two Digits Significant
Last Digit No. Of Zeros
103 = 10,000 Ohms

Wirewound RT Styles

MIL-R-27208 RT24 C2 P 101

Style

Characteristic

C = Temp. Coeff. ±50 PPM/°C
2 = 85° Rating Temp., 150° Max. Oper. Temp.

Terminal Type

Resistance Code

First Two Digits Significant
Last Digit No. Of Zeros
101 = 100 Ohms

Mil-Spec Numbering System - Defined

Specifications are subject to change without notice.

*May also order using this part number.

Terminal

Failure

Order By

Process By*

Marked With

Types

Rates

M39015/2-003(TS)(FR)

RTR22D(TS)501(FR)

JM39015/2-003(TS)(FR)

M39015/2-004(TS)(FR)

RTR22D(TS)102(FR)

JM39015/2-004(TS)(FR)

M39015/2-005(TS)(FR)

RTR22D(TS)202(FR)

JM39015/2-005(TS)(FR)

L, P, W, X

M39015/2-006(TS)(FR)

RTR22D(TS)502(FR)

JM39015/2-006(TS)(FR)

M39015/2-007(TS)(FR)

RTR22D(TS)103(FR)

JM39015/2-007(TS)(FR)

M39015/2-008(TS)(FR)

RTR22D(TS)203(FR)

JM39015/2-008(TS)(FR)

M39015/3-006(TS)(FR)

RTR24D(TS)501(FR)

JM39015/3-006(TS)(FR)

P, W, X

M39015/3-007(TS)(FR)

RTR24D(TS)102(FR)

JM39015/3-007(TS)(FR)

M39015/3-008(TS)(FR)

RTR24D(TS)202(FR)

JM39015/3-008(TS)(FR)

P, W, X

M39015/3-009(TS)(FR)

RTR24D(TS)502(FR)

JM39015/3-009(TS)(FR)

M39015/3-010(TS)(FR)

RTR24D(TS)103(FR)

JM39015/3-010(TS)(FR)

Bourns High Reliability Mil-Spec Part Numbers

Mil-Spec Numbering System - How To Order

Qualified Part Numbers

Bourns reserves the right per MIL-R-39035 to substitute a higher grade temperature characteristic or failure rate (QPL) than requested.

RT/RTR22 (Commercial Model 3250)

STD.

RT22C2______

RTR22D______

NOMINAL

VALUES

RESOLUTION

OHMS

(PERCENT)

RT22C2L500

RT22C2P500

RT22C2W500

RT22C2X500

0.80

100

RT22C2L101

RT22C2P101

RT22C2W101

RT22C2X101

0.90

200

RT22C2L201

RT22C2P201

RT22C2W201

RT22C2X201

0.70

500

RT22C2L501

RT22C2P501

RT22C2W501

RT22C2X501

RTR22DL501M

RTR22DP501M

RTR22DW501M

RTR22DX501M

0.60

RT22C2L102

RT22C2P102

RT22C2W102

RT22C2X102

RTR22DL102M

RTR22DP100M

RTR22DW102M

RTR22DX102M

0.40

RT22C2L202

RT22C2P202

RT22C2W202

RT22C2X202

RTR22DL202M

RTR22DP202M

RTR22DW202M

RTR22DX202M

0.30

RT22C2L502

RT22C2P502

RT22C2W502

RT22C2X502

RTR22DL502M

RTR22DP502M

RTR22DW502M

RTR22DX502M

0.25

10K

RT22C2L103

RT22C2P103

RT22C2W103

RT22C2X103

RTR22DL103M

RTR22DP103M

RTR22DW103M

RTR22DX103M

0.19

20K

RT22C2L203

RT22C2P203

RT22C2W203

RT22C2X203

RTR22DL203M

RTR22DP203M

RTR22DW203M

RTR22DX203M

0.16

Specifications are subject to change without notice.

RJ22 (Commercial Model 3252)

STD.

RJ22F______

VALUES
OHMS

RJ22FL100

RJ22FP100

RJ22FW100

RJ22FX100

RJ22FL200

RJ22FP200

RJ22FW200

RJ22FX200

RJ22FL500

RJ22FP500

RJ22FW500

RJ22FX500

100

RJ22FL101

RJ22FP101

RJ22FW101

RJ22FX101

200

RJ22FL201

RJ22FP201

RJ22FW201

RJ22FX201

500

RJ22FL501

RJ22FP501

RJ22FW501

RJ22FX501

RJ22FL102

RJ22FP102

RJ22FW102

RJ22FX102

RJ22FL202

RJ22FP202

RJ22FW202

RJ22FX202

RJ22FL502

RJ22FP502

RJ22FW502

RJ22FX502

10K

RJ22FL103

RJ22FP103

RJ22FW103

RJ22FX103

20K

RJ22FL203

RJ22FP203

RJ22FW203

RJ22FX203

25K

RJ22FL253

RJ22FP253

RJ22FW253

RJ22FX253

50K

RJ22FL503

RJ22FP503

RJ22FW503

RJ22FX503

100K

RJ22FL104

RJ22FP104

RJ22FW104

RJ22FX104

250K

RJ22FL254

RJ22FP254

RJ22FW254

RJ22FX254

500K

RJ22FL504

RJ22FP504

RJ22FW504

RJ22FX504

1 MEG

RJ22FL105

RJ22FP105

RJ22FW105

RJ22FX105

RJ24 (Commercial Model 3296)

STD.

RJ24F______

VALUES
OHMS

RJ24FP100

RJ24FW100

RJ24FX100

RJ24FP200

RJ24FW200

RJ24FX200

RJ24FP500

RJ24FW500

RJ24FX500

100

RJ24FP101

RJ24FW101

RJ24FX101

200

RJ24FP201

RJ24FW201

RJ24FX201

500

RJ24FP501

RJ24FW501

RJ24FX501

RJ24FP102

RJ24FW102

RJ24FX102

RJ24FP202

RJ24FW202

RJ24FX202

RJ24FP502

RJ24FW502

RJ24FX502

10K

RJ24FP103

RJ24FW103

RJ24FX103

20K

RJ24FP203

RJ24FW203

RJ24FX203

25K

RJ24FP253

RJ24FW253

RJ24FX253

50K

RJ24FP503

RJ24FW503

RJ24FX503

100K

RJ24FP104

RJ24FW104

RJ24FX104

250K

RJ24FP254

RJ24FW254

RJ24FX254

500K

RJ24FP504

RJ24FW504

RJ24FX504

1 MEG

RJ24FP105

RJ24FW105

RJ24FX105

FAILURE RATE LEVEL M = 1.0%

RT/RTR24 (Commercial Model 3290)

STD.

RT24C2______

RTR24D______

NOMINAL

VALUES

RESOLUTION

OHMS

(PERCENT)

RT24C2P100

RT24C2W100

RT24C2X100

1.11

RT24C2P200

RT24C2W200

RT24C2X200

0.93

RT24C2P500

RT24C2W500

RT24C2X500

0.62

100

RT24C2P101

RT24C2W101

RT24C2X101

0.60

200

RT24C2P201

RT24C2W201

RT24C2X201

0.54

500

RT24C2P501

RT24C2W501

RT24C2X501

RTR24DP501M

RTR24DW501M

RTR24DX501M

0.42

RT24C2P102

RT24C2W102

RT24C2X102

RTR24DP102M

RTR24DW102M

RTR24DX102M

0.33

RT24C2P202

RT24C2W202

RT24C2X202

RTR24DP202M

RTR24DW202M

RTR24DX202M

0.26

RT24C2P502

RT24C2W502

RT24C2X502

RTR24DP502M

RTR24DW502M

RTR24DX502M

0.20

10K

RT24C2P103

RT24C2W103

RT24C2X103

RTR24DP103M

RTR24DW103M

RTR24DX103M

0.17

RT26 (Commercial Model 3260)

STD.

RT26C2______

NOMINAL

VALUES

RESOLUTION

OHMS

(PERCENT)

RT26C2W100

RT26C2X100

1.90

RT26C2W200

RT26C2X200

1.50

RT26C2W500

RT26C2X500

1.25

100

RT26C2W101

RT26C2X101

1.00

200

RT26C2W201

RT26C2X201

0.94

500

RT26C2W501

RT26C2X501

0.58

RT26C2W102

RT26C2X102

0.50

RT26C2W202

RT26C2X202

0.45

RT26C2W502

RT26C2X502

0.34

FAILURE RATE LEVEL M = 1.0%

Qualified Part Numbers

Bourns reserves the right per MIL-R-39035 to substitute a higher grade temperature characteristic or failure rate (QPL) than requested.

Specifications are subject to change without notice.

RJR24 (Commercial Model 3296)

STD.

RJR24F______

VALUES
OHMS

RJR24FP100*

RJR24FW100*

RJR24FX100*

RJR24FP200*

RJR24FW200*

RJR24FX200*

RJR24FP500*

RJR24FW500*

RJR24FX500*

100

RJR24FP101*

RJR24FW101*

RJR24FX101*

200

RJR24FP201*

RJR24FW201*

RJR24FX201*

500

RJR24FP501*

RJR24FW501*

RJR24FX501*

RJR24FP102*

RJR24FW102*

RJR24FX102*

RJR24FP202*

RJR24FW202*

RJR24FX202*

RJR24FP502*

RJR24FW502*

RJR24FX502*

10K

RJR24FP103*

RJR24FW103*

RJR24FX103*

20K

RJR24FP203*

RJR24FW203*

RJR24FX203*

25K

RJR24FP253*

RJR24FW253*

RJR24FX253*

50K

RJR24FP503*

RJR24FW503*

RJR24FX503*

100K

RJR24FP104*

RJR24FW104*

RJR24FX104*

250K

RJR24FP254*

RJR24FW254*

RJR24FX254*

500K

RJR24FP504*

RJR24FW504*

RJR24FX504*

1 MEG

RJR24FP105*

RJR24FW105*

RJR24FX105*

RJ/RJR26 (Commercial Model 3262)

STD.

RJ26F______

RJR26F______

VALUES
OHMS

RJ26FP100

RJ26FW100

RJ26FX100

RJR26FP100*

RJR26FW100*

RJR26FX100*

RJ26FP200

RJ26FW200

RJ26FX200

RJR26FP200*

RJR26FW200*

RJR26FX200*

RJ26FP500

RJ26FW500

RJ26FX500

RJR26FP500*

RJR26FW500*

RJR26FX500*

100

RJ26FP101

RJ26FW101

RJ26FX101

RJR26FP101*

RJR26FW101*

RJR26FX101*

200

RJ26FP201

RJ26FW201

RJ26FX201

RJR26FP201*

RJR26FW201*

RJR26FX201*

500

RJ26FP501

RJ26FW501

RJ26FX501

RJR26FP501*

RJR26FW501*

RJR26FX501*

RJ26FP102

RJ26FW102

RJ26FX102

RJR26FP102*

RJR26FW102*

RJR26FX102*

RJ26FP202

RJ26FW202

RJ26FX202

RJR26FP202*

RJR26FW202*

RJR26FX202*

RJ26FP502

RJ26FW502

RJ26FX502

RJR26FP502*

RJR26FW502*

RJR26FX502*

10K

RJ26FP103

RJ26FW103

RJ26FX103

RJR26FP103*

RJR26FW103*

RJR26FX103*

20K

RJ26FP203

RJ26FW203

RJ26FX203

RJR26FP203*

RJR26FW203*

RJR26FX203*

25K

RJ26FP253

RJ26FW253

RJ26FX253

RJR26FP253*

RJR26FW253*

RJR26FX253*

50K

RJ26FP503

RJ26FW503

RJ26FX503

RJR26FP503*

RJR26FW503*

RJR26FX503*

100K

RJ26FP104

RJ26FW104

RJ26FX104

RJR26FP104*

RJR26FW104*

RJR26FX104*

250K

RJ26FP254

RJ26FW254

RJ26FX254

RJR26FP254*

RJR26FW254*

RJR26FX254*

500K

RJ26FP504

RJ26FW504

RJ26FX504

RJR26FP504*

RJR26FW504*

RJR26FX504*

1 MEG

RJ26FP105

RJ26FW105

RJ26FX105

RJR26FP105*

RJR26FW105*

RJR26FX105*

*LAST LETTER IN NUMBER IS FAILURE RATE LEVEL. M = 1.0% P = 0.1% R = 0.01%

Qualified Part Numbers

Bourns reserves the right per MIL-R-39035 to substitute a higher grade temperature characteristic or failure rate (QPL) than requested.

Specifications are subject to change without notice.

This application note is designed to provide step-by-step

processing recommendations. It covers the popular SMC
soldering processes currently in use and provides recommenda-
tions and cautions for each step. Since many variations of
temperature, time, processes, cleaning agents and board types
are found in the electronics industry, you’ll want to test and
verify your own system.

The process steps, recommendations and cautions are

based on Bourns Trimpot surveys of SMC users, equipment
manufacturers and materials suppliers. Also, comments
reflect results of Bourns’ testing. Our findings suggest the
following soldering and cleaning processes:

1. SOLDERING - Forced Hot Air, Convection, IR, Vapor Phase

(In-Line), Wave (Single and Dual)

2. CLEANING - Solvent, Aqueous, Semi-Aqueous, No-Clean

On the facing page are the common methods, materials and
maximum temperature/time parameters for soldering and
cleaning processes.

Reflow

GENERAL

Use the optimum
solder paste for the
pattern, printing
process, solder paste
density and solder
joint quality.

RECOMMENDED

Use Sn 63% Pb 37%
solder paste. Use 8 to
10 mil thickness for
solder paste print.

CAUTION

Since solder paste
usually contains a high
percentage of activators,
you must ensure
adequate cleaning to
remove all residues,
unless no-clean (low
solids) paste is used.

Solder Paste
Printing

Adhesive
Application

Flow (Wave)

GENERAL

The adhesive must hold
the SM Component
(SMC) in correct
orientation upon place-
ment and maintain
correct trimmer position
during physical
handling before final
solder processing.

RECOMMENDED

To assure positional
stability, place a single
dot of epoxy under the
SMC.

CAUTION

Stability after placement
is a direct function of
the volume of adhesive
used. Use enough epoxy
to assure stability
through the cure
process.

Avoid overflow of epoxy
to solder pad and
terminal areas.

Adhesive
Cure

Flow (Wave)

GENERAL

Use heat/time cure
method with either
convection oven or
infrared radiation.

RECOMMENDED

Cure using the
temperature and
times recommended
by the adhesive
manufacturer.

CAUTION

Use enough cure
time to assure
complete adhesive
transition from fluid
to solid.

Flux
Application

Flow (Wave)

GENERAL

Use the correct flux
to remove surface
oxides, prevent
reoxidation and
promote wetting.

RECOMMENDED

• RMA
• No-clean SRB
(Synthetic resin
based)
• OA (Organic Acid)
(See caution)

CAUTION

Avoid highly
activated fluxes.
Consult factory before
using OA.

SMC
Placement

GENERAL

Use pick-and-place
equipment with
vacuum nozzle ID size
that allows adequate
suction to pick the
SMC out of the
embossed cavity.

RECOMMENDED

The nozzle inside
diameter (ID) should
not exceed .100 in.
(2.54mm) to ensure
adequate suction and
part alignment.

CAUTION

Assure parts are
placed so that all
terminals are
equidistant (<4 mils)
from the solder pads.

Align terminals with
solder belt direction of
travel to avoid body
shadowing effects
during flow soldering.

EPOXY

Soldering And Cleaning Processes

Specifications are subject to change without notice.

SOLDERING/CLEANING METHODS

REFLOW

FLOW

Hot Air;

Vapor

Infrared

Phase

Wave

Process Step

(Solvent)

(Semi-Aq) (Aqueous) (No-Clean)

(Solvent)

(Semi-Aq) (Aqueous) (No-Clean)

(Solvent)

(Semi-Aq) (Aqueous) (No-Clean)

Material

1. Solder Paste Printing

2. Adhesive Application

3. Component Placement

4. Adhesive Cure

5. Flux Application

Rosin

5. Flux Application

Rosin

5. Flux Application

Organic Acid

5. Flux Application

Synthetic Resin Based

6. Solder (Reflow)

63/37 Sn/Pb

7. Solder (Flow)

63/37 Sn/Pb

8. Wash (Solvent)

ODS Free

8. Wash (Semi-Aqueous)

Terpene, Hydrocarbon Based

8. Wash (Aqueous)

DI H20; Surfacant; Saponifier

High Pressure Fluids

(See Caution)

Max. Temp. (°C)/Time (Secs)

235/40

215/180

260/5

Min. Temp. (°C)

215

Soldering And Cleaning Processes

Specifications are subject to change without notice.

♦

TRIMMING POTENTIOMETERS AND DEFINITIONS

The following terms and definitions have been edited from the

Industrial Standard published by the Variable Resistive Components
Institute. It is intended to encourage standardization in communica-
tion and understanding between the manufacturer and user. The
complete standard, including detailed test procedures, is available
upon request.

GENERAL TERMS

TRIMMING POTENTIOMETER: An electrical mechanical device with

three terminals. Two terminals are connected to the ends of a
resistive element and one terminal is connected to a movable
conductive contact which slides over the element, thus allowing
the input voltage to be divided as a function of the mechanical
input. It can function as either a voltage divider or rheostat.

WIREWOUND TRIMMING POTENTIOMETER: A trimming poten-

tiometer characterized by a resistance element made up of
turns of wire on which the wiper contacts only a small portion of
each turn.

NON-WIREWOUND TRIMMING POTENTIOMETER: A trimming

potentiometer characterized by the continuous nature of the
surface area of the resistance element to be contacted. Contact
is maintained over a continuous, unbroken path. The resistance
is achieved by using material compositions other than wire such
as carbon, conductive plastics, metal film and cermet.

RESISTANCE ELEMENT: A continuous, unbroken length of resistive

material without joints, bonds or welds except at the junction of
the element and the electrical terminals connected to each end
of the element, or at an intermediate point such as a center tap.

ADJUSTMENT SHAFT: The mechanical input member of a trimming

potentiometer which when actuated causes the wiper to
traverse the resistance element resulting in a change in output
voltage or resistance.

SINGLE-TURN ADJUSTMENT: Requires 360º or less mechanical

input to cause the wiper to traverse the total resistance element.

MULTITURN ADJUSTMENT: Requires more than 360º mechanical

adjustment to cause the wiper to traverse the total resistance
element.

TERMINAL: An external member that provides electrical access to

the resistance element and wiper.

LEADWIRE TYPE TERMINAL: Flexible insulated conductor.

PRINTED CIRCUIT TERMINAL: Rigid uninsulated electrical conduc-

tor, suitable for printed circuit board plug-in.

SOLDER LUG TERMINAL: Rigid uninsulated electrical conductor,

suitable for external lead attachment.

WIPER: The wiper is the member in contact with the resistive ele-

ment that allows the output to be varied when the adjustment
shaft is rotated.

STOP-CLUTCH: A device which allows the wiper to idle at the ends

of the resistive element without damage as the adjustment shaft
continues to be actuated in the same direction.

STOP – SOLID: A positive limit to mechanical and/or electrical

adjustment.

STACKING: The mounting of one trimming potentiometer adjacent to

or on top of another utilizing the same mounting hardware.

THEORETICAL RESOLUTION: (Wirewound only) The theoretical

measurement of sensitivity to which the output ratio may be
adjusted; the reciprocal of the number of turns of wire in resis-
tance winding expressed as a percentage.

N = Total number of resistance wire turns.

1
N X 100 = Theoretical resolution percent.

INPUT AND OUTPUT TERMS

TOTAL APPLIED VOLTAGE: The total voltage applied between the

designated input terminals.

OUTPUT VOLTAGE: The voltage between the wiper terminal and the

designated reference point. Unless otherwise specified, the
designated reference point is the CCW terminal.

OUTPUT RATIO: The ratio of the output voltage to the designated

input reference voltage. Unless otherwise specified, the refer-
ence voltage is the total applied voltage.

LOAD RESISTANCE: An external resistance as seen by the Output

Voltage (connected between the wiper terminal and the desig-
nated reference point.)

ADJUSTMENT TERMS

DIRECTION OF TRAVEL: Clockwise (CW) or counterclockwise

(CCW) rotation when viewing the adjustment end of the poten-
tiometer.

MECHANICAL TRAVEL — SOLID STOPS: The total travel of the

adjustment shaft between integral stops. Continuity must be
maintained throughout the travel.

MECHANICAL TRAVEL — CLUTCHING ACTION: The total travel of

the adjustment shaft between the points where clutch actuation
begins. Continuity must be maintained throughout the travel
and during clutch actuation.

MECHANICAL TRAVEL — CONTINUOUS ROTATION: The total

travel of the adjustment shaft when the wiper movement is
unrestricted at either end of the resistive element as the adjust-
ment shaft continues to be actuated.

ADJUSTMENT TRAVEL (ELECTRICAL): The total travel of the adjust-

ment shaft between minimum and maximum output voltages.

CONTINUITY TRAVEL: The total travel of the shaft over which elec-

trical continuity is maintained between the wiper and the resis-
tance element.

ELECTRICAL AND OPERATIONAL CHARACTERISTICS

TOTAL RESISTANCE: The DC resistance between the input termi-

nals with the wiper positioned to either end stop, or in dead
band for continuous rotation potentiometers.

TEST VOLTAGE

➀

➂

➁

♦

YELLOW

GREEN

RED

CW ROTATION

CCW

Applications/Processing Guide

Maximum

Total Resistance, Nominal

Test Voltage

Non-Wirewound

Wirewound

Ohms

Volts DC

.1 TO 1.0

0.1

1.0 to 50

0.3

50 to 100

2.0

100 to 1000

3.0

1K to 100K

Over 0.1 megohm

—

NOTE: The test voltages should never exceed the equivalent of 10% rated power.

The minimum voltage to be used is 10 MV.

Specifications are subject to change without notice.

ABSOLUTE MINIMUM RESISTANCE: The resistance measured

between the wiper terminal and each end terminal with the
wiper positioned to give a minimum value.

END RESISTANCE: The resistance measured between the wiper ter-

minal and an end terminal when the wiper is positioned at the
corresponding end of mechanical travel. Absolute minimum
resistance and end resistance are synonymous for continuous
rotation trimmers.

TEMPERATURE COEFFICIENT OF RESISTANCE: The unit change in

resistance per degree Celsius change from a reference temper-
ature, expressed in parts per million per degree Celsius as
follows:

– R

TC = ——————— X 10

– T

)

Where:

R1 = Resistance at reference temperature in ohms.
R2 = Resistance at test temperature in ohms.
T1 = Reference temperature in degrees Celsius.
T2 = Test temperature in degrees Celsius.

RESISTANCE-TEMPERATURE CHARACTERISTIC: The difference

between the total resistance values measured at a reference
temperature of 25ºC and the specified test temperature
expressed as a percent of the Total Resistance.

– R

RTC = ——————— X 100

Where:

R1 = Resistance at reference temperature (25ºC) in ohms.
R2 = Resistance at the test temperature in ohms.

CONTACT RESISTANCE VARIATION: The apparent resistance seen

between the wiper and the resistance element when the wiper
is energized with a specified current and moved over the
adjustment travel in either direction at a constant speed. The
output variations are measured over a specified frequency
bandwidth, exclusive of the effects due to roll-on or roll-off of
the terminations and is expressed in ohms or % of total resis-
tance.

TABLE II

Test Current (±20%)

Total Resistance Range

30 ma

2 = Rt = 200

5 ma

200 ‹ Rt = 3K

1 ma

3K ‹ Rt = 200K

200 ua

200K ‹ Rt = 1 megohm

50 ua

1 megohm ‹ Rt = 5 megohm

EQUIVALENT NOISE RESISTANCE: Wirewound only. Any spurious

variation in the electrical output not present in the input, defined
quantitatively in terms of an equivalent parasitic, transient resis-
tance in ohms, appearing between the contact and the resistant
element when the shaft is rotated. The equivalent Noise
Resistance is defined independently of the resolution, function-
al characteristics and the total travel. The magnitude of the
Equivalent Noise Resistance is the maximum departure from a
specific reference line. The wiper of the potentiometer is
required to be excited by a specific current and moved at a
specific speed.

CONSTANT
CURRENT
SOURCE
NOT TO EXCEED
RATING OF R

BEING TESTED

CALIBRATION
DECADES
SEE NOTE

OSCILLOSCOPE

AC
AMPLIFIER
OR FILTER

OUTPUT DETECTOR

▲

TEST TRIMMER

CALIBRATION

RESISTOR

1 ma

SCOPE

OR EQUIVALENT

DETECTOR

INPUT Z

10 X Rt

Max. deviation (volts)

ENR (ohms) =

.001 amps

Applications/Processing Guide

Figure 1. Contact-resistance-variation measuring circuit

Rt = Test specimen
Output detector bandwidth: 100 cycles to 50 kilocycles
Minimum input impedance to output detector:
At least 10 times the nominal resistance being tested

NOTE: At the calibration of the decade, terminals 1 and 2 must be
coincident. Calibration decade is to be set for the contact-resistance
variation (CRV) level of the specified nominal resistance being tested.

CONTINUITY: Continuity is the maintenance of continuous electrical

contact between the wiper and both end terminals of the resis-
tive element.

SETTING STABILITY: The amount of change in the output voltage,

without readjustment, expressed as a percentage of the total
applied voltage.

DIELECTRIC STRENGTH: The ability to withstand the application of

a specified potential of a given characteristic, between the ter-
minals and all other external conducting members such as
shaft, housing and mounting hardware without exceeding a
specified leakage current value.

INSULATION RESISTANCE: The resistance to a specified DC voltage

impressed between the terminals and all other external
conducting members such as shaft, housing and mounting
hardware.

POWER RATING: The maximum power that a trimming potentiometer

can dissipate across the total resistive element under specified
conditions while meeting specified performance requirements.

ROTATIONAL LIFE: The number of cycles obtainable under specified

operating conditions while remaining within specified allowable
degradation. A cycle is defined as one complete traversal of the
wiper over the resistive element in both directions.

LOAD LIFE: The number of hours at which a device may dissipate

rated power under specified operating conditions while remain-
ing within specified allowable degradations.

ADJUSTABILITY (OUTPUT RESISTANCE): The precision with which

the output resistance of a device can be set to the desired
value.

Specifications are subject to change without notice.

Forced Hot Air Convection System — Uses a multizone forced
air convection system with heat source panels using IR or other
type heating elements. Approximately 85% of the heating is
provided by free convection to reflow solder on exposed PC
boards.

Dual Wave System — Utilizes two parallel solder waves. The
first is a turbulent wave followed by a laminar wave. The turbu-
lent wave is for small, constricted areas, while the laminar wave
removes solder projections.

Vapor Phase System — Provides a single-zone condensation
heat source achieved with liquid fluorinated hydrocarbons that
have been brought to the boiling point to create a saturated
vapor zone. Heat is then released by the fluid’s heat of vapor-
ization as the vapor condenses on the product.

Soldering (Through-hole)

Two types of equipment are usually associated with through-
hole soldering:

Single Wave System — Provides an inclined portion of the
solder wave for the PC board to pass over. The PC board is
positioned to bring many potential solder joints in contact with
the wave simultaneously for a short time for soldering.

Drag System — Provides for PC boards to be dragged across
the surface of the solder pot. Soldered connections are made
during this operation.

PC Board Washing

Two types of equipment are usually associated with both SMT
and through-hole products.

Pressure System — Accomplishes cleaning by directing sprays
of water under high pressure from multiple nozzles.

Flooding System — Utilizes a combination of flooding (at
normal water pressure) and surfactant action for cleaning).

Soldering and Wash Processes

Figure 1 shows typical profiles any component may see during
a soldering and board washing operation. For details of materi-
al and process variables recommendations, see “Soldering and
Cleaning Processes”, page 76.

ADJUSTABILITY (OUTPUT VOLTAGE RATIO): The precision with

which the output voltage ratio of a device can be set to the
desired value.

MECHANICAL TERMS

STARTING TORQUE: The maximum moment in the clockwise and

counterclockwise directions required to initiate shaft adjust-
ment anywhere in the mechanical travel.

STOP TORQUE: The maximum static moment that can be applied

to adjustment shaft at each mechanical stop for a specified
period of time without loss of continuity or mechanical damage
affecting operational characteristics.

SOLDERABILITY: The ability of the terminals to accept a uniform

coating of solder under specified conditions.

WELDABILITY: The ability of materials to be welded together under

specified conditions.

TERMINAL STRENGTH: The ability of the terminals to withstand

specified mechanical stresses without sustaining damage that
would affect utility of the terminals or operation of the trimming
potentiometer.

IMMERSION SEALED: The ability of the unit to withstand submer-

sion in acceptable cleaning solutions used in normal soldering
processes without performance degradation under specified
environmental conditions.

TRIMMER "ABILITIES"

When you are selecting components for a new design, you

typically take into account the environmental conditions that the
components will need to endure during the lifetime of the instrument
or device. Designers in the past have often overlooked the environ-
mental extremes of their own production lines, where the conditions
may be much more severe than anything encountered in actual end
use.

PROCESSABILITY

"Processability" refers to the ability of the unit to withstand the

production-line processes associated with the finishing steps on the
PC boards. Typically, both SMT and through-hole products are sub-
jected to similar PC board processing operations after preparation
for assembly. These operations can generally be summarized as
follows:

Flux

Pre-Heat

Solder

➤

Wash

Rinse

Dry

➤

Applications/Processing Guide

Soldering (SMT)

Four types of equipment are usually associated with SMT
soldering:

IR System — Uses a multi-zone infrared furnace with IR
elements heated to a temperature substantially above chamber
or product temperature. Energy is supplied to the product
primarily by IR radiation to reflow solder.

°C

Top Mounted
Thermocouple

Bottom
Mounted
Thermocouple

2nd Stage Dryer

1st Stage Dryer

Rinse

Air Knife

Rinse

Air Knife

Rinse

Air Knife

Wash

Solder

2nd Pre-Heat

1st Pre-Heat

Flux

Minutes

Specifications are subject to change without notice.

SINGLE-TURN SETTABILITY (3386)

MULTITURN SETTABILITY (3299)

400

300

200

MV.

500

400

MV.

1.7

3.4

5.1

6.8

8.5

10.2

SEC.

LESS EXPERIENCED

TECHNICIAN

EXPERIENCED

TECHNICIAN

LESS EXPERIENCED

TECHNICIAN

EXPERIENCED

TECHNICIAN

400

M.V.

400

M.V.

1.7

3.4

5.1

6.8

8.5

10.2

SEC.

Figure 2.

When accurate setting is required, a multiturn trimmer

can generally be set faster than a single-turn.

General Guidelines for Guarding Against Component Damage

To minimize temperature shock

• Pre-heat boards to maximum acceptable level
• Reduce time in solder

To avoid heating components above their maximum rated
temperature

• Use lowest acceptable solder temperature
• Use maximum allowable conveyor speed
• Limit pre-heat temperature to maximum necessary

To limit time of exposure above rated temperature

• Limit time in solder
• After solder operation, cool board to wash temperature

before it enters wash

To minimize temperature difference between top and bottom of
board

• Apply pre-heat to both top and bottom

To reduce temperature shock on entering the moist environ-
ment of the wash

• Use wash/rinse temperature as near component

temperature as possible

• Extend time between solder process and wash
• Cool board after solder operation, prior to entering wash

To minimize temperature variations as component travels
through moisture

• Minimize number of wash/rinse and rinse/dry cycles
• Use heated air for air knives (to counter evaporative

cooling effect)

• Minimize difference between wash and rinse temperature

To minimize exposure to high-pressure water during board
wash

• Select trimmer models with pin styles that orient the

rotor seal area away from exposure to the high-pressure
water stream

SETTABILITY

Settability refers to the ease with which a trimmer can be set

accurately to the position that produces the desired circuit condition.

Where the requirement is for obtaining a highly accurate set-

ting the preference is for cermet — because a small incremental
adjustment in a wirewound unit does not always produce the
expected change in output as the wiper moves off one turn of wire
and onto another.

Setting accuracy is better with a multiturn unit than with a

single-turn. This is especially true when the speed of setting is also
a requirement as on a production line (Figure 2).

Applications/Processing Guide

°C/Min.

Rate of Change of Profile

(Indicator of Level of Stability)

Unstable Temp

(# of Cycles)

Minutes

Figure 1.

Typical temperature profile for board washing

and soldering.

Critical profile parameters

Temperature Shock (°C)

Maximum Temperature (°C)

Temperature Exposure (Minimum)

Temperature Gradient (°C)

Temperature Shock Decrease in Water (°C)

Temperature Shock Decrease in Water & Air Pressure (°C)

Unstable Temperature (see next page)

STABILITY

Stability refers to the ability of the trimmer to remain at the

desired setting. Environmental factors play an important role here:
stability may be affected by temperature exposure, thermal shock/
cycling, humidity, and mechanical shock or vibration.

This is not a matter of concern in most applications, since

Bourns trimmers exhibit excellent stability under all specified condi-
tions. Stability is most often a concern when cermet trimmers are
used in low current "dry" circuits (50uA amps and below). Under
these conditions the contact resistance may vary, making the wiper
appear unstable. This is most noticeable in some rheostat applica-
tions. This can be avoided by using a wirewound unit, or choosing a
cermet trimmer that has been designed for dry-circuit applications.
Bourns applications engineers can assist you on this and other
questions.

ACCESSIBILITY

When selecting a trimmer and determining its placement on the

board, keep in mind the people who will have to use it. Bourns trim-
mers are available in a wide variety of sizes, shapes, configurations,
and placement of adjustment screws. You will usually find a unit on
which the access for adjustment will be convenient for the user.

Specifications are subject to change without notice.

Keep in mind the different requirements for accessibility

depending on whether adjustment will be done on the assembly line
or in the field; with the board uncovered, in a housing or cabinet, or
on an extender. Also consider whether production-line adjustment
will be done manually or by robotics. A Bourns applications engineer
can advise on special high-speed automatic adjustment features.

USABILITY

In selecting a trimmer for a specific application, it's important to

be aware that the catalog contains a myriad of facts about each
model that can assist you in finding the most suitable choice. For
example:

Contact Resistance Variation (CRV) — Under MIL-R 22097 and

MIL-R-39035, the maximum CRV is 3%. All Bourns trimmers meet
this standard (3% or 3 ohms, whichever is greater). For applications
that demand a more rigorous standard, some Bourns trimmers are
rated at 2% or 2 ohms, and many others at 1% or 1 ohm.

Power Rating — The ambient temperature at which the trimmer

will operate has an important bearing on power rating. Power ratings
are usually specified at 70º or 85ºC; at a temperature of 150ºC, the
power rating of many trimmers is reduced to zero.

Temperature Coefficient of Resistance (T.C.) — This specifica-

tion is a measure of how much the resistance changes with a
change in temperature. In many applications a T.C. of ±250PPM/ºC
is acceptable. Typical T.C. specifications for cermet models are
±100PPM/ºC and ±50PPM/ºC for wirewound models.

RELIABILITY

One of the greatest challenges facing American manufactur-

ers in the early '90s lies in the area of reliability — a challenge for
component manufacturers and equipment manufacturers alike.
Bourns has been on the leading edge of this effort, both in the area
of instituting new methods and technologies for achieving higher
reliability, and bringing an awareness of the need to other manufac-
turers.

SURFACE MOUNTED DEVICES (SMD)

AN EMERGING TECHNOLOGY

Surface mounting of electronic components represents another

significant advance in PC board processing. Many U.S. companies
have expressed an interest in SMD assembly methods to replace the
often troublesome and costly techniques now used with leaded
components. Unfortunately, for a number of reasons, this interest
has not resulted to date in a major commitment to SMD handling
equipment.

There are direct and indirect benefits associated with surface

mounting. Since the direct benefits are outgrowths of the indirect
ones, some explanation of these interrelated factors is required in
order to understand this complex, highly technical and investment
intensive subject. Further, a listing of the primary advantages will
make additional comments on Japan's SMD usage and growth
unnecessary.

In capsule format, the primary advantages (with comments on

secondary benefits) are:

• Lower End-Equipment Cost

(positions OEM's for aggressive pricing to achieve market
penetration).

• Superior Product Performance

(satisfies user requirements for improved operational
performance).

• Improved Product Quality and Reliability

(creates confidence factor which easily translates to
increased demand or sales).

• Smaller Finished Product Size

(addresses demand for miniaturization).

Cost, performance, quality/reliability and size — how are these

factors interrelated and how are they achieved through surface
mounting?

A by-product of SMD technology is the downsizing of compo-

nents. Size reductions range from 25% to 60%, depending upon the
device in question. High PC board densities can be achieved (more
components per square inch of real estate; surface mounted units
can also be assembled on both sides). PC board material savings
alone are substantial. When circuits diminish, external hardware and
other materials follow — further savings. Even freight charges are
decreased by lighter equipment weight and less packaging.

Surface mounted component prices are forecasted to decline,

the result of automated volume production. Volume is directly related
to component standardization. By having a few sizes to cover a large
range of electrical values and/or parameters, large quantities of a
given device can be produced at a much lower per unit cost. Selling
prices fall as volume increases. Component quality is also enhanced
by eliminating many of the variables associated with short produc-
tion runs.

Automatic SMD handling equipment, although capital intensive,

is the single-most effective way to reduce labor costs and increase
yields. Typical "pick and place" machines can assemble compo-
nents 8 to 10 times faster than human assemblers, with virtually no
mistakes. Major direct labor reductions are obvious. The combina-
tion of improved component quality and "mistake-free" component
placement further decreases costs by eliminating the normal rework
of auto-inserted boards.

The many advantages of SMD technology will force change

upon both electronic equipment manufacturers and component
suppliers alike. Worldwide competitive prices and performance
pressures will make it happen. Few electronic components will
escape its influence, trimming potentiometers being no exception.
Bourns is committed to SMD conversion, and we intend to be a
leader in surface mounted trimmer devices. Bourns surface mount
trimmers begin on page 12.

GENERAL NOTES:

Plated-Through Holes: (Ref. MIL-STD-275D).
5.5 Plated-through holes. The difference between the inside diame-

ter of the plated-through hole and the nominal outside diameter
of the inserted lead shall be not greater than 0.028 inch
(0.71mm) or less than 0.010 inch (0.25 mm). Unless otherwise
specified, the hole size shall be the finished plated size after
solder coating or fusing. When flat ribbon leads are mounted
through plated-through holes, the difference between the nomi-
nal thickness of the lead and the inside diameter of the plated-
through hole shall not exceed 0.028 inch (0.71 mm).

Applications/Processing Guide