The GD150HFY120C8SN 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 300 A, Junction Temperature 175 Degree C, Gate Emitter Leakage Current 0.4 uA. More details for GD150HFY120C8SN can be seen below.