HTR-India-Products-Wire-Wound-Resistors-Silicone-Coated-Resistors-HFA-English-html.html

PHYSICAL CONFIGURATION

HTR

TYPE

POWER

RATING

70°C

±2

DIMENSIONS (mm)

RESISTANCE RANGE

F-1

15.0

4.5

0.8

R10

6K8

1.18

F-2

18.0

4.5

0.8

R10

8K6

1.20

F-3

20.0

5.50

0.8

R20

12K

1.24

F-5

27.0

5.50

1.0

R27

20K

1.60

F-7

38.0

5.50

1.0

R47

30K

1.90

F-9

47.0

5.75

1.0

R47

40K

2.22

F-10

10W

53.0

5.75

1.0

R60

51K

2.34

TYPICAL

WEIGHT

PER PC

(gms)

min max

D (max)

±0.05

ELECTRICAL & ENVIRONMENTAL

CHARACTERISTICS / DATA

PARAMETER/PERFORMANCE TEST & TEST METHOD

PERFORMANCE REQUIREMENTS

±1

L (max)

WIRE WOUND

RESISTORS

SILICONE

COATED TYPE

HFA

Power Rating (Rated Ambient Temperature)

Full Power dissipation at 70°C and linearly derated

to zero at 275°C (Refer Derating Curve above)

Resistance Tolerances Available

±10% (K); ±5% (J)

Operating Temperature Range

-55°C to +275°C with suitable derating as per derating curve

Voltage Rating / Limiting Voltage/ Max Working Voltage

PxR

Voltage Proof / Dielectric Withstanding Voltage

∆R ± [2% + R05] - No flashover, mechanical

(based on limiting voltage x 2 for 60 secs)

damage, arcing or insulation breakdown

Short Time Overload (5 x Rated Power upto 2 watts and

∆R ± [3% + R05] - Average

10 x Rated Power 3 watts and above for 5 secs)
Temperature Co-efficient of Resistance

± 60 to 500 ppm/°C (Depending on resistance value)

Thermal Shock [From -55°C to +275°C, 5 cycles,

∆R ± [5% + R05]

30 min. dwell time]
Damp Heat (Steady State) / Humidity

∆R ± [5% + R05]

(70°C at 95% R.H for 250 hours)
Endurance - Load Life (70°C with limiting voltage -

∆R ± [5% + R05] - Average

1.5 hours on / 0.5 hours off for 1000 hours)
Solvent Resistance [IPA for 60 secs ± 10 secs]

No effect on coating / marking

MECHANICAL SPECIFICATIONS

Pull Test / Robustness of Terminations

No effect

(Direct load 2 to 4.5 kgs depending on size for 15 secs)
Resistance to Soldering Heat (260°C - 270°C for 4 secs)

∆R ± [2.5% + R05] - Typical

Solderability (As per IEC - 60068 - 2 - 20Ta)

Must meet the requirements laid down

Marking

As per IEC Pub. 60062

PARAMETER/PERFORMANCE TEST & TEST METHOD

PERFORMANCE REQUIREMENTS

e : info@htr-india.com

www.htr-india.com

Rev Date : 22/05/2019

TYPICAL APPLICATIONS

•  Kitchen Appliances : Mixers, Blenders, Percolators, Cooking Ranges, Toasters and Deep Fryers.
•  Automotive Equipment : Horns, Ignitions, Voltage Regulators, Instrument Gauges and Windshield Wipers.
•  These resistors can also be used as a resistor cum fuse. In order to ensure that the device functions as it should, the device needs to

be tailor-made for each particular application. Please consult factory.

• Depending on application, the resistor terminations may be tin plated copper clad steel (copperweld®) instead of tin plated copper.

Note:

1. The leads of the resistor can be bent and cut as per requirements for quick PCB mounting.

Please send detailed drawings of the type of preforming required.

2. Types F1, F2, F3, F5, F7, F9 & F10 can be supplied in taped form.

Please refer to tape / ammo pack specifications. Tape / Reel on request.

1. For RoHS Version – F2 *

2. For Tape & Reel - F2 TR

3. For Tape & Ammo pack - F2 T

Series

Type

Packing

Resistance Value

Tolerance

HFA

F2 / F2*

Bulk F2 / F2*

100R

Tape & Ammo F2T / F2*T

Tape & Reel F2TR / F2*TR

ORDERING INFORMATION

WIRE WOUND

RESISTORS

SILICONE

COATED TYPE

HFA

e : info@htr-india.com

www.htr-india.com

Rev Date : 22/05/2019