Auto-Grade 4-Terminal Shunt Resistors Deliver Precision Sensing
The CSS4C-1216 Series of AEC-Q200 compliant 4-terminal current-sense resistors from Bourns offers precision current measurement, power handling, higher efficiency, and effective thermal management in a compact footprint. Such features are essential in today’s electric vehicles (EVs), hybrid electric vehicles (HEVs), battery-management systems (BMS), frequency converters, and other power electronics.
The new resistors are constructed with an electron-beam-welded (EBW) metal strip that provides excellent long-term stability, minimal inductance (< 2 nH), and high thermal performance. Delivering a power rating of up to 5 W and resistance values as low as 0.0003 Ω, these new shunt resistors help ensure precise, stable operation across an operating temperature range from –65 to +170°C.
The series’ 4-terminal design minimizes measurement inaccuracies resulting from lead resistance to significantly enhance reliable operation in high current circuits. As a result, it supports precise current monitoring in space-constrained PCB layouts.
The CSS4C-1216 Series is available now. Click here for more detailed product information.
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.