The GD800HFY120C3S 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 1203 A, Junction Temperature 175 Degree C, Gate Emitter Leakage Current 0.4 uA. More details for GD800HFY120C3S can be seen below.