The GD300HFU120C2S from StarPower is a IGBT with Gate Emitter Voltage -20 to 20 V, Saturated Collector Emitter Voltage 3 to 3.8 V, DC Collector Current 395 A, Junction Temperature 150 Degree C, Gate Emitter Leakage Current 0.4 uA. More details for GD300HFU120C2S can be seen below.