600 V, 160 A — the conduction-loss ceiling
The IKQ120N60TXKSA1 is a 600 V, 160 A Trench Field Stop IGBT from Infineon's TrenchStop™ series, housed in a TO-247-3 through-hole package. It targets the sweet spot for 400 V DC-link motor drives, UPS inverters, and solar string inverters where the bus voltage sits around 400 V and the peak collector current reaches 160 A continuous, 480 A pulsed. The 2 V typical Vce(on) at 120 A collector current and 15 V gate drive sets the conduction-loss floor. At full load the 2 V drop times 120 A gives 240 W of conduction loss alone — the 833 W maximum power dissipation gives headroom for switching losses, but the heatsink must be sized for the sum.
Switching losses and gate drive budget
Switching energy is 6.2 mJ turn-on and 5.9 mJ turn-off under the test condition of 400 V, 120 A, 3 Ohm gate resistor, 15 V gate drive. At a 10 kHz switching frequency, that adds roughly 121 W of switching loss — combined with conduction loss, the die temperature stays within the -40°C to 175°C junction range only with adequate thermal management. The 703 nC total gate charge means the gate driver must source and sink that charge each cycle. A driver with 2 A peak output can charge the gate in about 350 ns; a weaker driver stretches the switching edges and increases turn-on loss. Turn-on delay is 50 ns, turn-off delay 565 ns at 25°C. The asymmetric delay — fast turn-on, slower turn-off — is typical of Trench Field Stop designs and must be accounted for in dead-time settings to avoid shoot-through.
Active production, ROHS3 compliant
The part ships in the PG-TO247-3-46 package variant, a standard TO-247-3 footprint. The through-hole mounting suits high-power stages where the leads carry the current and the tab bolts to a heatsink.