Schurter_PFRA-html.html

FUSES

/ SICHERUNGEN

PFRA

Resettable fuses

www.schurter.com

Test Procedures And Requirements For Model PFRA Series

Test

/ Test

Test Conditions

/ Bedingungen

Accept/Reject Criteria

Visual/Mech.

/ visuell/mech.

Verify dimensions and materials

/ Kontrolle Abmess./Mat

Per PF physical description

Resistance

/ Widerstand

In still air @ 23 °C

/ bei ruhiger Luft

min

≤

max

Time to Trip

/ Trip-Zeit

At spezified current V

max

, 23 °C

/ unter spez. Strom

≤

max.

time to trip

(sec.

)

Hold Current

/ Haltestrom

30 min. at I

hold

/ bei Haltestrom

No trip

Trip Cycle Life

/ Trip-Zyklen

max

, I

max

, 100 cycles

/ Zyklen

No arcing or burning

Trip Endurance

/ Zeit im Tripzustand

max

, 48 hours

/ Stunden

No arcing or burning

Environmental Characteristics

Operating/Storage Temperature

/ Einsatz/Lagertemp.

–40 °C

+85 °C

Maximum Device Surface Temperature in Tripped State

125 °C

Passive Aging

/ passive Alterung

+85 °C, 1000

hours

/ Std.

±5%

typ. resist. change

Humidity Aging

/ Feuchtigkeitsalterung

+85 °C, 85% R.H. 1000

hours

/ Std.

±5%

typ. resist. change

Thermal Shock*)

/ Thermischer Schock

+85 °C/–40 °C 10

times

/ Zyklen

±10%

typ. resist. change

Mechanical Shock

/ Mechanischer Schock

MIL-STD-202, Method 213,

No resistance change

Condition

(100 g, 6

sec.

)

Solvent Resistance

/ Lösungsmittel-Beständigkeit

MIL-STD-202, Method 215

No change

Vibration

MIL-STD-883C, Method 2007.1,

No change

Condition A

*) MIL-STD-202F, Method 107G

Wire leaded
PTC-Fuses
Type PFRA

Cured, flame retardant epoxy
Polymer insulating material
meets UL 94V-0
requirements
Bulk packaging, tape and
reel and Ammo-Pack avai-
lable on most models
Agency recognition:
**UL, CSA, TÜV

Typical Time to Trip at 23 ˚C

100

0.1

0.01

0.001

100

0.1

PFRA.010

PFRA.017

PFRA.110

PFRA.

250,

250-0-010

PFRA.500

RA.135

PFRA.300

PFRA.400 PFRA.600

PFRA.7

PFRA.800

PFRA.900

RA.160

RA.185

PFRA.020

RA.025

RA.030

PFRA.040PFRA.050PFRA.065PFRA.07

PFRA.0

-0-009

PFRA.1100

Time to trip

(s)

Fault current

(A)

Applications

Almost anywhere there is a

low voltage power supply
and a load to be protected,
including:

• Computers and peripherals
• Transformer for toys
• Motors/fans

Typical Part Marking

PFRA.030–900

Layout may vary

RA250
6180T

Manufacturer’s
Trademark

Part identification

Lot No (T = Taiwan)

Date Code (Last Digit of Year and Julian Date)

Kinked lead options available for board standoff

PFRA.010–050 rated at 30 V

Package

1 2

Typical Part Marking

PFRA.010–025

Layout may vary

RA250
8 H

Manufacturer’s
Trademark

Part identification

Date code week 1 of 1998 = 8 A (year and week)
week 27 of 1998 = A 8 (week and year)

50 75 100

FUSES

/ SICHERUNGEN

PFRA

Resettable fuses

www.schurter.com

Type

/ Typ

max

hold

trip

Initial

1 Hour (R1) Post-

Max. Time

Tripped Power

Resistance

Trip Resistance

to trip at 23 °C

Dissipation

Amperes

at/

Ohms at 23 °C Ohms at 23 °C Seconds at 23 °C

Watts at 23 °C

Hold

Trip

min.

max.

1 max.

PFRA.010.X

0.10

0.20

2.50

4.50

7.50

4.0

0.38

PFRA.017.X

0.17

0.34

3.30

5.21

8.00

3.0

0.48

PFRA.020.X

0.20

0.40

1.50

2.84

4.40

2.2

0.40

PFRA.025.X

0.25

0.50

1.00

1.95

3.00

2.5

0.45

PFRA.030.X

0.30

0.60

0.76

1.36

2.10

3.0

0.50

PFRA.040.X

0.40

0.80

0.52

0.86

1.29

3.8

0.55

PFRA.050.X

0.50

1.00

0.41

0.77

1.17

4.0

0.75

PFRA.065.X

0.65

1.30

0.27

0.48

0.72

5.3

0.90

PFRA.075.X

0.75

1.50

0.18

0.40

0.60

6.3

0.90

PFRA.090.X

0.90

1.80

0.14

0.31

0.47

7.2

1.00

PFRA.090.X.009

0.90

1.80

0.07

0.12

0.22

5.9

0.60

PFRA.110.X

1.10

2.20

0.10

0.18

0.27

6.6

0.70

PFRA.135.X

1.35

2.70

0.065

0.115

0.17

7.3

0.80

PFRA.160.X

1.60

3.20

0.055

0.105

0.15

8.0

0.90

PFRA.185.X

1.85

3.70

0.04

0.07

0.11

8.7

1.00

PFRA.250.X

2.50

5.00

0.025

0.048

0.07

10.3

1.20

PFRA.250.X.010

2.50

5.00

0.020

0.05

0.08

10.3

1.20

PFRA.300.X

3.00

6.00

0.02

0.05

0.08

10.8

2.00

PFRA.400.X

4.00

8.00

0.01

0.03

0.05

12.7

2.50

PFRA.500

5.00

10.00

0.01

0.03

0.05

14.5

3.00

PFRA.600

6.00

12.00

0.005

0.02

0.04

16.0

3.50

PFRA.700

7.00

14.00

0.005

0.02

0.03

17.5

3.80

PFRA.800

8.00

16.00

0.005

0.02

0.03

18.8

4.00

PFRA.900

9.00

18.00

0.005

0.01

0.02

20.0

4.20

PFRA.1100

100

11.00

22.00

0.003

0.01

0.014

20.0

4.50

Electrical Characteristics

Packaging

Bulk

/ Lose:

500

per bag

(leave.X space)

Tape and reel

/ Gegurtet:

PFRA.010–PFRA.160 –12.7 mm device pitch = 3000

pcs. per reel

;

X=.2 PFRA.185–PFRA.400 – 25.4 mm device pitch = 1500

pcs. per reel

PFRA.090.X.009 & PFR.A250.X.010 = 3000

pcs. per reel

Ammo Pack

/ Ammo-Verp.:

PFRA.010–PFRA.160 – 12.7mm device pitch = 2000

pcs. per reel

;

X=.3 PFRA.185–PFRA.400 – 25.4mm device pitch = 1000

pcs. per reel

;

PFRA.090.X.009 & PFRA.250.X.010 = 2000

pcs. per reel

Type

/ Typ

max. max. nominal Tol. ± min. max.

Style

Lead

Material

PFRA.010.X

7.4

12.7

5.1

0.7

7.6

3.1

0.51

dia./

Sn/NiCu

PFRA.017.X

7.4

12.7

5.1

0.7

7.6

3.1

0.51

dia./

Sn/NiCu

PFRA.020.X

7.4

12.7

5.1

0.7

7.6

3.1

0.51

dia./

Sn/CuFe

PFRA.025.X

7.4

12.7

5.1

0.7

7.6

3.1

0.51

dia./

Sn/CuFe

PFRA.030.X

7.4

13.4

5.1

0.7

7.6

3.1

0.51

dia./

Sn/CuFe

PFRA.040.X

7.4

13.7

5.1

0.7

7.6

3.1

0.51

dia./

Sn/CuFe

PFRA.050.X

7.9

13.7

5.1

0.7

7.6

3.1

0.51

dia./

Sn/Cu

PFRA.065.X

9.7

15.2

5.1

0.7

7.6

3.1

0.51

dia./

Sn/Cu

PFRA.075.X

10.4

16.0

5.1

0.7

7.6

3.1

0.51

dia./

Sn/Cu

PFRA.090.X

11.7

16.7

5.1

0.7

7.6

3.1

0.51

dia./

Sn/Cu

PFRA.090.X.009

7.4

12.2

5.1

0.7

7.6

3.0

0.51

dia./

Sn/Cu

PFRA.110.X

8.9

14.0

5.1

0.7

7.6

3.0

0.51

dia./

Sn/Cu

PFRA.135.X

8.9

18.9

5.1

0.7

7.6

3.0

0.51

dia./

Sn/Cu

PFRA.160.X

10.2

16.8

5.1

0.7

7.6

3.0

0.51

dia./

Sn/Cu

PFRA.185.X

12.0

18.4

5.1

0.7

7.6

3.0

0.51

dia./

Sn/Cu

PFRA.250.X

12.0

18.3

5.1

0.7

7.6

3.0

0.81

dia./

Sn/Cu

PFRA.250.X.010

12.0

18.3

5.9

0.7

7.6

3.1

0.51

dia./

Sn/Cu

PFRA.300.X

12.0

18.3

5.1

0.7

7.6

3.0

0.81

dia./

Sn/Cu

PFRA.400.X

14.4

24.8

5.1

0.7

7.6

3.0

0.81

dia./

Sn/Cu

PFRA.500

17.4

24.9

10.2

0.7

7.6

3.0

0.81

dia./

Sn/Cu

PFRA.600

19.3

31.9

10.2

0.7

7.6

3.0

0.81

dia./

Sn/Cu

PFRA.700

22.1

29.8

10.2

0.7

7.6

3.0

0.81

dia./

Sn/Cu

PFRA.800

24.2

32.9

10.2

0.7

7.6

3.0

0.81

dia./

Sn/Cu

PFRA.900

24.2

32.9

10.2

0.7

7.6

3.0

0.81

dia./

Sn/Cu

PFRA.1100

24.2

32.9

10.2

0.7

7.6

3.0

0.81

dia./

Sn/Cu

Dimensions

at 23 °C

FUSES

/ SICHERUNGEN

PFRA

Resettable fuses

FUSES

/ SICHERUNGEN

PFRA

Resettable fuses

www.schurter.com

Thermal Derating Chart-I

hold

(Amps)

Type

/ Typ

Ambient Operating Temperature

–40 ˚C

–20 ˚C

0 ˚C

23 ˚C

40 ˚C

50 ˚C

60 ˚C

70 ˚C

85 ˚C

PFRA.010.X

0.16

0.14

0.12

0.10

0.08

0.07

0.06

0.05

0.04

PFRA.017.X

0.26

0.23

0.20

0.17

0.14

0.12

0.11

0.09

0.07

PFRA.020.X

0.31

0.27

0.24

0.20

0.16

0.14

0.13

0.11

0.08

PFRA.025.X

0.39

0.34

0.30

0.25

0.20

0.18

0.16

0.14

0.10

PFRA.030.X

0.47

0.41

0.36

0.30

0.24

0.22

0.19

0.16

0.12

PFRA.040.X

0.62

0.54

0.48

0.40

0.32

0.29

0.25

0.22

0.16

PFRA.050.X

0.78

0.68

0.60

0.50

0.41

0.36

0.32

0.27

0.20

PFRA.065.X

1.01

0.88

0.77

0.65

0.53

0.47

0.41

0.35

0.26

PFRA.075.X

1.16

1.02

0.89

0.75

0.61

0.54

0.47

0.41

0.30

PFRA.090.X

1.40

1.22

1.07

0.90

0.73

0.65

0.57

0.49

0.36

PFRA.090.X.009

1.40

1.22

1.07

0.90

0.73

0.65

0.57

0.49

0.36

PFRA.110.X

1.60

1.43

1.27

1.10

0.91

0.85

0.75

0.67

0.57

PFRA.135.X

1.96

1.76

1.55

1.35

1.12

1.04

0.92

0.82

0.70

PFRA.160.X

2.32

2.08

1.84

1.60

1.33

1.23

1.09

0.98

0.83

PFRA.185.X

2.68

2.41

2.13

1.85

1.54

1.42

1.26

1.13

0.96

PFRA.250.X

3.63

3.25

2.88

2.50

2.08

1.93

1.70

1.53

1.30

PFRA.250.X.010

3.63

3.25

2.88

2.50

2.08

1.93

1.70

1.53

1.30

PFRA.300.X

4.35

3.90

3.45

3.00

2.49

2.31

2.04

1.83

1.56

PFRA.400.X

5.80

5.20

4.60

4.00

3.32

3.08

2.72

2.44

2.08

PFRA.500

7.25

6.50

5.75

5.00

4.15

3.85

3.40

3.05

2.60

PFRA.600

8.70

7.80

6.90

6.00

4.98

4.62

4.08

3.66

3.12

PFRA.700

10.15

9.10

8.05

7.00

5.81

5.39

4.76

4.72

3.64

PFRA.800

11.60

10.40

9.20

8.00

6.64

6.16

5.44

4.88

4.16

PFRA.900

13.05

11.70

10.35

9.00

7.47

6.39

6.12

5.49

4.68

PFRA.1100

16.10

14.60

13.10

11.00

9.40

8.80

7.80

6.90

5.20

How To Order

PF RA . XXX . X

PTC-Fuse

Style

RA =

Radial Leaded Component

Hold Current, I

hold

010-1100 (100 mA–11,0 A)

Packaging Options

- =

Bulk Packaging

.2 =

Tape and Reel*

.3 =

Ammo Pack*

*Packaged per EI486-B

Note:

Add designator “009” or “010” after Packaging Option Code
to specify Models PFRA.090.009 or
PFRA.250.010.