1200V SiC MOSFET for high power AI designs
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Alpha and Omega Semiconductor (AOS) has developed a 1200V silicon carbide (SiC) MOSFET series for datacentre power supplies and electric vehicle on board chargers.
The third generation αSiC technology provides up to 30 percent improved switching figure-of-merit (FOM) compared to the previous generation while maintaining low conduction losses at high load conditions. The Gen3 MOSFETs have full AEC-Q101 qualification, with extended lifetime and HV-H3TRB capabilities as well as wide compatibility of gate drive voltages from +15V to +18V.
As power demands surge in electric vehicles (EVs), AI data centers, and renewable energy systems, inefficiencies in power conversion stages can significantly strain electrical supply and cooling systems. Target applications include industrial motor drives, solar inverters, high-power SMPS, and eV charging equipment.
Future AI datacentres adopting high-voltage 800V or ±400V architectures will benefit from reduced losses and increased power density to meet growing power requirements. To support these higher system voltages, AOS’ Gen3 1200V devices will be critical for enabling new topologies.
The AOS Gen3 1200V MOSFETs are available with an on-resistance range from 15mOhm for the AOM015V120X3Q to 40mOhm for the AOM040V120X3Q in a TO27-4L package. AOS plans to roll out its Gen3 MOSFETs in additional surface mount and topside cooled packages as well as in case modules.
For EV designs, the Q series MOSFETs enable engineers to create higher power density systems with greater efficiency, reducing battery consumption and extending vehicle range. AOS has qualified a Gen3 1200V/11mOhm MOSFET die designed for high-power EV traction inverter modules and is available for wafer sales.
“Electric vehicles and AI are transforming industries, but they require advanced power systems that can maintain efficiency even as energy demands increase,” said David Sheridan, Vice President of Wide Bandgap products at AOS. “We’re excited that this next generation of AOS aSiC MOSFETs can deliver the performance our customers require while making a positive environmental impact.”
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