500 V, 16 A CoolMOS — the TO-220 Full Pack anchor for PFC and SMPS
The SPA16N50C3: Housed in a TO-220 Full Pack (PG-TO220-3-111), it delivers the thermal isolation of a fully encapsulated package — the metal tab is electrically isolated, so no insulating pad or washer is needed between the device and the heatsink. The 280 mOhm on-resistance at 10 A, 10 V is the figure to budget for conduction loss in a continuous-conduction-mode PFC stage or a flyback primary switch.
Gate charge, capacitance, and switching behaviour
Input capacitance (Ciss) is 1600 pF at 25 V drain-source.
For dual-sourcing or second-source planning, no pin-compatible cross-reference is listed in the product record, so the BOM should treat this as a single-source line item unless a validated alternate is qualified independently.
