650 V, 15 A CoolMOS™ — switching-loss budget for hard-switched topologies
The SPA15N60C3XKSA1: This third-generation CoolMOS device targets hard-switched power stages — PFC boost, flyback, and half-bridge converters — where the 280 mOhm typical Rds(on) at 9.4 A, 10 V gate drive keeps conduction loss manageable while the 63 nC total gate charge (Qg at 10 V) sets the drive current needed for the target switching frequency. With a 1660 pF input capacitance (Ciss at 25 V Vds) and a 3.9 V max gate threshold at 675 µA, the device turns on cleanly from a standard 10 V gate rail.
TO-220 Full Pack — board-fit and thermal interface
The 34 W dissipation rating assumes the back of the package is thermally coupled to a heatsink; in free air, derate significantly.