The GD50HFU120C1S from StarPower is a IGBT with Gate Emitter Voltage -20 to 20 V, Saturated Collector Emitter Voltage 3.15 to 3.6 V, DC Collector Current 78 A, Junction Temperature 150 Degree C, Gate Emitter Leakage Current 0.4 uA. More details for GD50HFU120C1S can be seen below.