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TCS2, TCS3, TCS14 CURRENT
SENSING
RESISTORS

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Using advanced welding techniques and nickel alloys these resistors have a long term stability of less than
50ppm/C.  The simple four port Kelvin design ensures easy installation on large current busbars.  Currents
of 170A (0.1mR & 3W), 100A (0.1mR & 2W) and 350A (0.1mR & 14W) are standard.  Applications include:
Current detection in precise power sources, constant current sources, industrial power conversion circuits,
HEVs, fuel cells and constant electronic loads.

GENERAL SPECIFICATIONS

Model

Power
Rating [W]

Resistance Range
[ ]

Tolerance

TCS2 2 0.1m - 0.5m +-1.0%(F), +-5.0%(J)
TCS3 3
TCS14 14 0.1m +-5.0%(J)

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

Model

TCS2

TCS3

TCS14

Temperature Range

 -55 to 125C

-55 to 125C

-55 to 125C

Temperature Storage

 -55 to 125C

-55 to 125C

 -55 to 125C

Temperature Coefficient

 0-80ppm/C

0-80ppm/C

0-50ppm/C 

Overload

 2KW for 0.1 sec.

2KW for 0.1 sec.

2KW for 0.1 sec. 

Inductance

 15nH

17nH

 3nH

DIMENSIONS

Model

Dimension [mm]

A B C D E F G

TCS2

50.0 12.0 2.0 35.0 See
Below
6.2 3.2
TCS3 55.0 15.0 2.0 40.0 6.2 0.8
TCS14 84.0 20.0 3.0 66.0 8.3 0.8

DIMENSIONS OF "E"

Model

Dimension [mm]

0.1mR 0.2mR 0.3mR 0.4mR 0.5mR

TCS2

5.6 7.7 9.6 11.6 11.6
TCS3 7.0 9.6 12.0 14.5 14.5
TCS14 9.0 N/A N/A N/A N/A

CURRENT RATING

Model

Resistance

0.1mR 0.2mR 0.3mR 0.4mR 0.5mR

TCS2

141.1A 100.0A 81.6A 70.7A 63.2A
TCS3 173.2A 122.4A 100.0A 86.6A 77.4A
TCS14 350A N/A N/A N/A N/A

DERATING AND FREQUENCY CHARACTERISTICS FOR TCS2 & TCS3

RECOMMENDED INSTALLATION

Notes:

1.  When TCS2, 3 is attached to a current bus, mechanical strain should be avoided.
2.  Resistance is calculated using DC voltage on detecting terminal at application of current
     through current terminals.
3.  Voltage out copper pins should be attached to the copper terminals of the resistor.

ORDERING PROCEDURE EXAMPLE

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

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