onsemi has introduced EliteSiC™ M4, a fourth-generation silicon carbide platform with a trench architecture for power systems in EVs, AI data centers and industrial applications. The company says the platform is designed to improve power density and efficiency by up to 30% and reduce losses by 35%, with the 750 V bare die for automotive traction inverters available now and additional voltage options up to 1200 V expected in 2027.