What the 280 mOhm Rds(on) and 18 nC Qg mean for your design
The IPA60R280P7SXKSA1: At 3.8 A drain current and 10 V gate drive the maximum Rds(on) is 280 mOhm. The 18 nC total gate charge at Vgs=10 V keeps gate-drive energy low. The 761 pF input capacitance at 400 V drain-source is moderate for clean switching edges.
TO-220 FullPAK — no insulating washer needed
The PG-TO220-FP (FullPAK) package provides full isolation between the metal tab and the heatsink. That eliminates the need for a silicone pad or mica washer and reduces assembly time. Maximum power dissipation is 24 W at case temperature.
Active production, ROHS3 compliant — no LTB risk
Infineon lists this part as Active (current production) with ROHS3 compliance.