600 V, 4.4 A, 950 mΩ — CoolMOS C6 in a Full-Pack TO-220
The Infineon IPA60R950C6XKSA1 is an N-channel CoolMOS power MOSFET in a TO-220 Full Pack (PG-TO220-FP) through-hole package. The Full Pack isolates the backside tab electrically.
That means Infineon has issued a discontinuation notice and the final order window is active or has closed. If the BOM still calls for this exact part number, the procurement path is independent-distribution stock — new-manufacture supply from the factory is no longer available. Buyers should qualify a replacement or secure remaining inventory against the production horizon. The official Infineon successor for this C6 CoolMOS series is typically a member of the CoolMOS C7 or P7 family in the same package and voltage class, though a direct pin-compatible replacement requires checking the specific Rds(on) and gate charge targets.
Package and thermal — the Full Pack advantage
The TO-220 Full Pack (PG-TO220-FP) is a fully isolated plastic package. The backside tab is encapsulated, so the mounting screw and heatsink are at the same potential as the drain.
Switching performance — gate drive and capacitance
Input capacitance of 280 pF at 100 V means the Miller plateau is short, and the switching node rise time stays clean with a modest gate resistor.