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CS-227 HIGH POWER PRECISION
T0-227 SHUNT RESISTORS

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The CS-227 is a metal foil, TO227 resistor designed to give a high current capability. The metal foil element is
situated on an insulated heatsink composed of plated copper. This assembly is then mounted into a durable
plastic housing and sealed with high temperature epoxy. This product features: Four terminals for precise
currents, vibration proof, good insulation, compact size and easy bolt mounting.

GENERAL SPECIFICATIONS

Model

Resistance Range
[ Ω ]

Power
Rating [W]

TCR
[ppm/C]

Tolerance
[%]

Maximum
Current

CS227A

1m, 2m, 5m

50

+-50

+-5

200A

CS227B

2m+2m, 3m+3m

20 + 20

+-50

+-5

80A X 2

CHARACTERISTICS Values in [ ] mean change in ohmic value after test

Operating Temp. Range -55 C to +125 C

Dielectric Withstanding Voltage 2500VDC

Internal Heat Resistance R < 2.5KW

Inductance 5nH for R < 10mohms

Load Life Deviation < 5% after 2000 hours

　

　

　

DIMENSIONS

　

Dimension [mm]

A B C D E F G
H

CS227
38+-0.5 25+-0.5 10+-0.5 30+-0.5 15+-0.5 13+-0.5 2 - 4.2
4 - M4.0

DERATING AND CONFIGURATION SCHEMATIC

ORDERING PROCEDURE EXAMPLE

Model	Resistance Range [ Ω ]	Power Rating [W]	TCR [ppm/C]	Tolerance [%]	Maximum Current
CS227A	1m, 2m, 5m	50	+-50	+-5	200A
CS227B	2m+2m, 3m+3m	20 + 20	+-50	+-5	80A X 2

Operating Temp. Range	-55 C to +125 C
Dielectric Withstanding Voltage	2500VDC
Internal Heat Resistance	R < 2.5KW
Inductance	5nH for R < 10mohms
Load Life	Deviation < 5% after 2000 hours

	Dimension [mm]
	A	B	C	D	E	F	G	H
CS227	38+-0.5	25+-0.5	10+-0.5	30+-0.5	15+-0.5	13+-0.5	2 - 4.2	4 - M4.0