The VS-GT300YH120N from Vishay is a IGBT with Gate Emitter Voltage 20 V, DC Collector Current 300 to 400 A, DC Forward Current 300 to 412 A, Junction Temperature -40 to 175 Degree C, Gate Emitter Leakage Current 0.25 uA. More details for VS-GT300YH120N can be seen below.