The Infineon IKFW90N65ES5XKSA1 is a TrenchStop™ Trench Field Stop IGBT in a TO-247-3 through-hole package, rated for 80 A continuous collector current and 650 V collector-emitter breakdown. The 154 W power dissipation limit sets the thermal budget for the design — pair it with a low-thermal-resistance heatsink and forced airflow if running near the ceiling.
Switching losses and gate drive — sizing the driver and heatsink
Tested at 400 V, 75 A, 16 Ω gate resistor, 15 V gate drive, the IKFW90N65ES5XKSA1 switches with 2.5 mJ turn-on energy and 990 µJ turn-off energy. The 165 nC gate charge means the gate driver must supply enough peak current to charge and discharge the gate capacitance within the desired dead-time — a typical 2 A to 4 A driver works for hard-switched designs up to 20 kHz. Turn-on delay is 42 ns, turn-off delay 151 ns at 25°C, which helps keep dead-time margins tight in complementary-leg topologies.
Package and mounting — TO-247-3 through-hole
The TO-247-3 (PG-HSIP247-3-2) is a standard three-lead through-hole power package with a large tab for heatsink mounting. The through-hole leads handle high current without the creepage concerns of a surface-mount part. Store the reels dry — the package is not moisture-sensitive by default, but the leads can oxidise if left in humid storage for extended periods.