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PCR
PRECISION CEMENT RESISTOR

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Precision cement resistors designed with four terminals, are distinguished by excellent
long term stability & TCR. The Kelvin connections of this device allow high precision
measurements even with low resistance values. PCR 4T has a non-inductive copper
manganin element inserted into the ceramic case and finally sealed with a cement
molding. This resistor has low inductance and has high pulse power.

Applications include: Power modules, Frequency converters, Switch mode power supplies.

GENERAL SPECIFICATION

Model

Rated Power[W]

Resistance value

Tolerance[%]

T.C.R(ppm/C)

Operating Temp. Range

PCR 4T

3

5m to 10 m

0.5%,1%,5%

30 ppm/C (20C to 60C)

-40C to +150C

CHARACTERISTICS

Temperature Range

 

-40C to +150C

Insulation Resistance

 

DC500V,20M minimum

Dielectric Withstanding Voltage

 

AC 1500V for 1 minute

Temp. Coefficient

 

Max. 30ppm/C [20C and 60C]

Short Time Overload

[0.2%]

2.5 X Power rating 5 sec.

Load Life

[0.5%]

Power rating 1.5 hours on, 30 minutes off, 500 hours

SURFACE TEMPERATURE

 DERATING CURVE

 DIMENSIONS [mm]

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