The GD150HFY120C8S from StarPower is a IGBT with Gate Emitter Voltage -20 to 20 V, Saturated Collector Emitter Voltage 1.7 to 2.15 V, DC Collector Current 291 A, Junction Temperature 175 Degree C, Gate Emitter Leakage Current 0.4 uA. More details for GD150HFY120C8S can be seen below.