600 V, 40 A NPT IGBT — motor-drive and inverter workhorse
NPT technology provides rugged short-circuit capability and a positive temperature coefficient, making the part easy to parallel and stable under overload.
Switching losses and gate drive — sizing the heatsink and driver
Total switching energy is 440 µJ turn-on and 330 µJ turn-off at 400 V, 20 A, 16 Ω gate, 15 V gate drive — these numbers drive the switching-frequency derating and heatsink selection. Gate charge is 100 nC, which at a 10 kHz switching frequency draws 1 mA average from the gate driver; a standard totem-pole driver handles it comfortably. Turn-on delay is 36 ns, turn-off delay 225 ns at 25 °C — the asymmetric delay favours a slower turn-off to clamp the inductive kickback voltage.
Continuous collector current is rated 40 A; pulsed current can reach 80 A (Icm) — the pulsed rating covers motor-start and capacitor-charging transients without oversizing the die. Vce(on) is 2.4 V max at 15 V gate, 20 A collector — this conduction loss at rated current is about 48 W, which the TO-247 package can sink with a moderate heatsink and forced air.