650 V, 17.5 A — what these ratings mean for your switching stage
The IPA65R190CFDXKSA2: That means in a hard-switching PFC or flyback converter the switching losses will dominate the thermal budget, not the conduction loss.
Package and mounting — TO-220 Full Pack, no tab isolation needed
This simplifies assembly in a metal-enclosure PSU or motor drive where the heatsink is at chassis ground. The tube packaging is standard for through-hole power devices; no reel or tape handling.
Gate drive and switching — 68 nC Qg, 1850 pF input capacitance
The ±20 V max gate rating gives headroom for ringing on the gate node; a 10 V drive is the recommended level for minimum Rds(on).