650 V breakdown, 80 A continuous — sizing the power stage
The IKW50N65EH5XKSA1 is an Infineon TrenchStop™ IGBT rated for 650 V collector-emitter breakdown and 80 A continuous collector current, with a pulsed capability of 200 A. The 650 V rating gives headroom on a 400 V DC bus — you can ride through switching transients without avalanche. The 80 A continuous figure sizes the inverter or motor-drive output stage; the 200 A pulsed rating handles short-circuit events and motor inrush without immediate failure.
2.1 V Vce(sat) and switching losses — thermal budget drivers
At the test condition of 400 V, 50 A, 12 Ohm gate resistor, and 15 V gate drive, the typical Vce(sat) is 2.1 V. That sets the conduction loss floor at 105 W for a 50 A load — the heatsink and junction temperature calculation starts here. Switching energy is 1.5 mJ on and 500 µJ off, which defines the hard-switching frequency ceiling; the asymmetric split means turn-off losses dominate at higher frequencies.
175 °C junction — field reliability margin
The 175 °C max is the same ceiling as the IHW30N120R5XKSA1 peer, so thermal management strategies carry across.
Active production, TO-247-3 — sourcing and fit
The TO-247-3 through-hole package is a standard power module footprint — three leads, screw-mount tab, compatible with common heatsink clips. Gate charge is 120 nC, so a standard IGBT driver with 2 A peak output can switch it at 20 kHz without excessive drive loss.