Datasheet

LEADED RESISTORS

DIMENSIONS

Unit: mm

STYLE DIMENSION

Normal Miniature L øD H ød

CFR-12 CFR25S 3.4±0.3 1.9±0.2 28±2.0 0.45±0.05

CFR-25 CFR50S 6.3±0.5 2.4±0.2 28±2.0 0.55±0.05

CFR-50 CFR1WS 9.0±0.5 3.3±0.3 26±2.0 0.55±0.05

CFR100 CFR2WS 11.5±1.0 4.5±0.5 35±2.0 0.8±0.05

CFR200 CFR3WS 15.5±1.0 5.0±0.5 33±2.0 0.8±0.05

FEATURES

Power Rating 1/6W, 1/4W, 1/2W, 1W, 2W, 3W

Resistance Tolerance ±2%, ±5%

T.C.R. see Table 1

DERATING CURVE

For resistors operated in ambient temperatures above 70°C, power rating must be derated

in accordance with the curve below.

TABLE 1 TEMPERATURE COEFFICIENT

STYLE MAX. VALUE OF TEMP. COEFFICIENT PPM/°C

under 100K Ω 100K Ω - 1M Ω 1M Ω - 10M Ω

CFR100, CFR200, CFR2WS, CFR3WS ±350 -500 -1,500

CFR-12, CFR-25, CFR-50,

CFR25S, CFR50S, CFR1WS

+350 / -500 -700 -1,500

ød

H L øD

INTRODUCTION

The CFR Series Carbon Film Resistors are

manufactured by coating a homogeneous

film of pure carbon on high grade ceramic

rods. After a helical groove has been cut in

the resistive layer, tinned connecting leads of

electrolytic copper are welded to the end-caps.

The resistors are coated with layers of tan

color lacquer.

General Type

Normal & Miniature Style [ CFR Series ]

Carbon Film Resistors

Rated Load (%)

Ambient Temperature (°C)

160140120100806040

100

70 155 °C

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leaded resISTORS General Type Carbon Film Resistors Normal & Miniature Style [ CFR Series ] FEATURES Power Rating 1/6W, 1/4W, 1/2W, 1W, 2W, 3W Resistance Tolerance ±2%, ±5% T.C.R. see Table 1 DERATING CURVE For resistors operated in ambient temperatures above 70°C, power rating must be derated in accordance with the curve below. INTRODUCTION The CFR Series Carbon Film Resistors are manufactured by coating a homogeneous film of pure carbon on high grade ceramic rods.
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31 Note: ELECTRICAL CHARACTERISTICS STYLE CFR-12 CFR25S CFR-25 CFR50S CFR-50 Power Rating at 70°C 1/6W 1/4W Maximum Working Voltage 150V 200V 250V 300V 350V 400V 500V Maximum Overload Voltage 300V 400V 500V 600V 700V 800V 1,000V Voltage Proof 300V 400V 500V 700V 1,000V Resistance Range 1 Ω - 10M Ω & 0 Ω for E24 series value Operating Temp.