CSM2512 current sense chip resistor with TCR to 50

1st July 2020
Alex Lynn

Current sensing resistors that operate at high power can experience significant self-heating. This self-heating can cause error in measurement if the sense resistor has high TCR. Stackpole's CSM2512 current sense resistor offers a metal element with TCR now improved to 50 ppm.

This ensures high accuracy measurement at 3W for resistance values from 0.001 to 0.1 milliohm. In addition, the AEC-Q200 and RoHS compliant (exemption-free) CSM2512 has a molded package and is capable of full power operation for terminal temperatures up to 120 degrees C.

The low TCR and higher relative resistance value of the CSM is a good choice for power supplies for currents up to 54.8A, industrial power control, consumer electronics, telecom, computer, measurement equipment, battery management, and LED drivers.

Pricing for the CSM2512 depends on resistance value, and tolerance, and ranges from $0.08 to $0.185 each in full reel quantities.

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