The GD300HFX170C6S from StarPower is a IGBT with Gate Emitter Voltage -20 to 20 V, Saturated Collector Emitter Voltage 1.85 to 2.35 V, DC Collector Current 493 A, Junction Temperature 175 Degree C, Gate Emitter Leakage Current 0.4 uA. More details for GD300HFX170C6S can be seen below.