ROHM Unveils 100V MOSFET With 5x Wider SOA for Auto Safety Circuits
Kyoto – September 18, 2026 -- ROHM Co., Ltd. has developed the RS4P063BPHZG, a 100V MOSFET delivering approximately five times the Safe Operating Area (SOA) tolerance of standard equivalent-sized products under VDS=100V and PW=100 microseconds.
New MOSFET targets automotive safety and protection circuits
The RS4P063BPHZG is optimized for airbag inflator ignition circuits, seat belt pretensioner drive circuits, and pyro-fuse drive circuits for battery cutoff. ROHM engineered the device to effectively suppress secondary breakdown, achieving Wide-SOA performance across a broad voltage range while housed in the standard HPLF5060 (5060-size) package widely used across automotive applications.