The GD50FFK120C5SP from StarPower is a IGBT with Gate Emitter Voltage -20 to 20 V, Saturated Collector Emitter Voltage 2.15 to 2.6 V, DC Collector Current 90 A, Junction Temperature 175 Degree C, Gate Emitter Leakage Current 0.4 uA. More details for GD50FFK120C5SP can be seen below.