CPF

Metal Film Resistors, Industrial Power, Precision, Flameproof

Vishay Dale

Document Number: 31021

www.vishay.com

Revision: 11-Mar-10

99

Notes

• Surface temperatures were taken with an infrared pyrometer in

+ 25 °C still air. Resistors were supported by their leads in test

clips at a point 0.500" (12.70 mm) out from the resistor body ends.

DIMENSIONS

L

1 max.

L

D

[38.10 ± 3.18]

d

GLOBAL

MODEL

DIMENSIONS in inches (millimeters)

LD

d

CPF1

0.240 ± 0.020

(6.10 ± 0.51)

0.090 ± 0.008

(2.29 ± 0.20)

0.310

(7.87)

0.025 ± 0.002

(0.64 ± 0.05)

CPF2

0.344 ± 0.031

(8.74 ± 0.79)

0.145 ± 0.015

(3.68 ± 0.38)

0.425

(10.80)

0.032 ± 0.002

(0.81 ± 0.05)

CPF3

0.555 ± 0.041

(14.10 ± 1.04)

0.180 ± 0.015

(4.57 ± 0.381)

0.650

(16.51)

0.032 ± 0.002

(0.81 ± 0.05)

DERATING

250

200

150

100

50

0

THERMAL RESISTANCE

0

1

2

345

APPLIED POWER IN W

120

100

80

60

40

20

0

- 55

- 25

0

30

60

90

120

150

180

210

240

AMBIENT TEMP. IN °C

70

CPF1

CPF2

CPF3

MATERIAL SPECIFICATIONS

Element

Proprietary nickel-chrome alloy

Core

Cleaned high purity ceramic

Coating

Special high temperature conformal coat

Termination

Standard lead material is solder-coated

Solderable and weldable per

MIL-STD-1276, Type C

MECHANICAL SPECIFICATIONS

Terminal Strength

2 pound pull test

Solderability

Continuous satisfactory coverage

when tested in accordance with

MIL-STD-202, Method 208

PERFORMANCE

TEST

MAX.

ΔR (Typical Test Lots)

Thermal Shock

± 1.0 %

Short Time Overload

± 0.5 %

Low Temperature Operation

± 0.5 %

Moisture Resistance

± 1.5 %

Resistance To Soldering Heat

± 0.5 %

Shock

± 0.5 %

Vibration

± 0.5 %

Terminal Strength

± 0.5 %

Dielectric Withstanding Voltage

± 0.5 %

Life

± 2.0 %