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How Low Can You Go? Current-Sense Resistor Series Adds 0.2-Ω Value

Aug. 18, 2025

The resistor, developed by Stackpole, addresses the demands of modern power-management and control designs.

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Stackpole Electronics extended its popular 3-W-rated CSNL2512 current-sense resistor series with a 0.2-mΩ value to meet the needs of today’s power-management and control designs. It features a TCR of 150 ppm and is capable of sensing currents up to 120 A.

Stackpole 0.2-mΩ current-sense resisto — Stackpole's new 0.2-mΩ current-sense resistor for its CSNL2512 series.

The AEC-compliant resistor exhibits excellent stability. Resistance shifts are less than 1% for load life, suiting it for use in DC-DC switching regulators, home appliances, HVAC systems, and telecom and internet infrastructure.

Packaged in a robust all-metal structure, pricing for the CSNL2512 is around $0.24 each in full package quantities. For additional information about Stackpole products, email [email protected].

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About the Author

Lee Goldberg | Contributing Editor

Lee Goldberg is a self-identified “Recovering Engineer,” Maker/Hacker, Green-Tech Maven, Aviator, Gadfly, and Geek Dad. He spent the first 18 years of his career helping design microprocessors, embedded systems, renewable energy applications, and the occasional interplanetary spacecraft. After trading his ‘scope and soldering iron for a keyboard and a second career as a tech journalist, he’s spent the next two decades at several print and online engineering publications.

Lee’s current focus is power electronics, especially the technologies involved with energy efficiency, energy management, and renewable energy. This dovetails with his coverage of sustainable technologies and various environmental and social issues within the engineering community that he began in 1996. Lee also covers 3D printers, open-source hardware, and other Maker/Hacker technologies.

Lee holds a BSEE in Electrical Engineering from Thomas Edison College, and participated in a colloquium on technology, society, and the environment at Goddard College’s Institute for Social Ecology. His book, “Green Electronics/Green Bottom Line - A Commonsense Guide To Environmentally Responsible Engineering and Management,” was published by Newnes Press.

Lee, his wife Catherine, and his daughter Anwyn currently reside in the outskirts of Princeton N.J., where they masquerade as a typical suburban family.

Lee also writes the regular PowerBites series.