The GD400HTY120P4S from StarPower is a IGBT with Gate Emitter Voltage -20 to 20 V, Saturated Collector Emitter Voltage 1.5 to 1.95 V, DC Collector Current 400 A, Junction Temperature 175 Degree C, Gate Emitter Leakage Current 0.4 uA. More details for GD400HTY120P4S can be seen below.