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SiC Full-Bridge Modules Simplify Development of Solar Inverters, Battery-Charging Apps

March 4, 2025

The modules integrate two low-loss, high-speed switching SiC MOSFETs with reliable body diode and deliver up to 333 W with continuous drain of up to 102 A.

Lee Goldberg

Related To: Electronic Design

SemiQ’s latest family of three 1,200-V SiC full-bridge modules integrate two of the company's rugged high-speed switching SiC MOSFETs with reliable body diode. The modules’ robust characteristics and high-performance thermal packaging help streamline the development of photovoltaic inverters, energy storage, battery charging, and other high-frequency DC applications.

Available in 18-, 38-, and 77-mΩ R_DS(on) variants, the modules have been tested at voltages exceeding 1,350 V and deliver a continuous drain current of up to 102 A, a pulsed drain current of up to 250 A, and power dissipation of up to 333 W.

Operational with a junction temperature of up to 175°C, the rugged B2 modules have exceptionally low switching losses (E_ON 0.13 mJ, E_OFF 0.04 mJ at 25°C for the 77-mΩ module), low zero-gate voltage drain/gate source leakage (0.1 µA/1 nA for all modules), and low junction-to-case thermal resistance (0.4°C per W for the 18-mΩ module).

The modules, which are available immediately, can be mounted directly to a heatsink. They’re housed in a 62.8- × 33.8- × 15.0-mm package (including mounting plates) with press-fit terminal connections and split DC negative terminals.

Datasheets for the GCMX020A120B2H2P (18 mΩ, 102 A), GCMX040A120B2H2P (38 mΩ, 56 A), and GCMX080A120B2H2P (77 mΩ, 27 A) 1,200-V full-bridge modules can be downloaded here.

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.