800 V CoolMOS™ — high-voltage switching workhorse
The SPP17N80C3XKSA1: The TO-220-3 through-hole package (PG-TO220-3-1) fits standard heatsink mounting for thermal management.
Parametric deep-dive: gate charge, capacitance, and switching
Total gate charge Qg is 177 nC at 10 V gate drive. Input capacitance Ciss is 2320 pF at 25 V drain-source. On-resistance increases with junction temperature; derate continuous current for the operating temperature.
Temperature grade and environment
The 208 W maximum power dissipation at case temperature assumes an infinite heatsink — real-world dissipation will be lower, dictated by the thermal resistance of the heatsink and airflow.
