POWER METERING PRECISION SHUNTS

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These components have E-beam welded manganese-copper alloy elements giving high strength, stability and
reliability.  Low thermal EMF and TCR.  Small size and minimal power loss.  Minimal heat generation and surface
temperature due to small total resistance.  Propriety processing technique allows very low resistance values.
Ideally suited for KWh meters and sampling sensor shunts.  These units are also suitable for custom design.

SPECIFICATIONS

Model	Power Rating	Resistance	Tolerance
PMS	3W	100µR-500µR	+-1%, +-5%, +-10%

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

Temperature Range	-55C-125C
Temperature Coefficient	≤+-50ppm/C
Internal Heat Resistance	<10K/W
Load Life	Deviation <0.5% after 2000hrs. @80C

DIMENSIONS

Resistance Value	Component Thickness	Rated Current
≤100µR	2.0mm	100A
120µR	1.5mm	80A
150µR	1.5mm	60A
200µR	1.2mm	60A
250µR	1.2mm	40A
300µR	1.0mm	40A
350µR	1.0mm	30A
≥500µR	1.0mm	30A

DERATING CURVE

ORDERING PROCEDURE EXAMPLE