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IRH "F" SERIES
PRECISION
HIGH POWER
METAL CLAD
SHUNTS

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INTRODUCTION

Precision Metal Clad Resistors are designed with four terminals to isolate voltage and current.
This enables very  precise current measurement.   These units exhibit a high load capacity as
well as excellent  accuracy and low inductance.  The simple four port Kelvin design and heavy
copper terminals  ensure  easy  installation  on  large  current  bus bars.  Applications include:
Battery manufacturing test jigs, current detection in precise power sources, constant current
sources, industrial power conversion circuits, HEVs, fuel cells and constant electronic loads

GENERAL SPECIFICATIONS

Model

Rated
Current [A]

Rated
Voltage [V]

Resistance Value[]

Tolerance
[%]

Mass
[g]

IRH300F

500

100 mV

0.2000 m

B [0.1]

D [0.5]

F [1.0]

1300

400

100 mV/50mV

0.2500m/0.1250m

1180

300

0.3333m/0.1666m

1100

IRH200F

250

100 mV

0.4000m

680

200

0.5000m

150

0.6666m

100

1.0000m

IRH100F

75

1.3333m

310

IRH80F

50/75

2.0000m/1.3333m

200

GENERAL SPECIFICATIONS

Temperature Range

 

-55C to +110C

Insulation Resistance

 

100M minimum

Dielectric Withstanding Voltage

 

AC 500V for 1 min.

Temp. Coefficient

 

Max. 15ppm/C [20C and 60C]; Max. 30ppm/C [20C and 60C]

Short Time Overload

[0.3%]

5 X Power rating 5 sec.

Moisture Resistance

[0.5%]

40C, 95% RH, DC100V case to terminal, 500 hours

Thermal Shock

[0.2%]

65C 30 minutes, +90C 30 min. 25 cycles

Vibration

[0.2%]

10Hz-55Hz-10Hz(1 minute), 2 h. each direction

Moisture Load Life

[0.5%]

40C, 95% RH, 0.1XPower rating 1.5 h. on, 30 min. off, 500 h.

Load Life

[0.5%]

Power rating 1.5 h. on, 30 min. off, 500 hours

Stability 

[0.1%]

Battery testing time, 1hour

DIMENSIONS

Model

L11.5

L21.5

L32

W10.5

W20.5

H0.5

IRH 300F

196

215

275

60

40

30

IRH 200F

146

165

225

60

40

30

IRH 100F

152

165

185

41

 

22

IRH 80F

137

150

170

41

 

22

ORDERING PROCEDURE EXAMPLE

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Tel:82-32-817-4325 Fax:82-32-817-4329

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