800 V N-channel in D²PAK — the high-voltage switching workhorse
The STB23N80K5 is an N-channel MOSFET in a D²PAK (TO-263) surface-mount package. The 800 V rating gives 50% derating margin on a typical 400 V DC bus (PFC output or rectified 230 VAC), which is the conventional practice for reliable off-line power supplies. The 16 A continuous rating is package-limited at 25°C case; at a 100°C case temperature the current must be derated per the SOA curve in the datasheet, and the 190 W power dissipation ceiling (Tc) sets the heatsink requirement.
Conduction and switching numbers that drive the thermal budget
Input capacitance Ciss is 1000 pF typical at 100 V drain-source bias, which influences the turn-on delay and the driver's peak current requirement. The maximum gate-source voltage is ±30 V.
ROHS3 compliant, no exemptions. For a production line that needs a clean 800 V N-channel with a standard D²PAK footprint and active lifecycle, this is a straightforward BOM fit.