The IXYT55N120A4HV from Littelfuse is a IGBT with Gate Emitter Voltage -20 to 20 V, Saturated Collector Emitter Voltage 1.8 V, DC Collector Current 55 A, Junction Temperature -55 to 175 Degree C, Gate Emitter Leakage Current -0.1 to 0.1 uA. More details for IXYT55N120A4HV can be seen below.