1,200-V Gen3 SiC MOSFET Modules Boost Reliability, Lower On-Resistance
SemiQ Inc. expanded its family of 1,200-V Gen3 silicon-carbide (SiC) MOSFETs with five SOT-227 modules that offer on-resistance (RDS(on)) values of 7.4, 14.5, and 34 mΩ. The GCMS modules, which feature Schottky barrier diodes (SBDs), have lower switching losses at high temperature. They target medium-voltage, high-power-conversion applications, including battery chargers, photovoltaic inverters, server power supplies, and energy storage systems.
All parts have been engineered to enhance performance and switching speeds while minimizing losses. They’re screened using wafer-level, gate-oxide burn-in tests exceeding 1,400 V and are avalanche tested to 800 mJ (330 mJ for 34-mΩ modules). The 7.4-mΩ GCMX007C120S1-E1 reduces switching losses to 4.66 mJ (3.72-mJ turn-on, 0.94-mJ turn0off) and has a body-diode reverse-recovery charge of 593 nC.
The SOT-227 modules are rugged, easy to mount, and feature an isolated backplate as well as direct mounts for a heatsink. Their junction-to-case thermal resistance ranges from 0.23°C/W for the 7.4-mΩ MOSFET module to 0.70°C/W for the 34-mΩ MOSFET module.
For additional information and specifications, click on the following links: GCMX007C120S1-E1 (192 A, 7.4 mΩ), GCMS007C120S1-E1 (189 A, 7.3 mΩ), GCMX014C120S1-E1 (104 A, mΩ), GCMS014C120S1-E1(51 A, 34 mΩ), GCMX034C120S1-E1 (53A, 34 mΩ ).
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.