The CM1800DY-34S from Mitsubishi Electric is a IGBT with Gate Emitter Voltage -20 to 20 V, Saturated Collector Emitter Voltage 2.1 to 2.7 V, DC Collector Current 1800 A, Junction Temperature 175 Degree C, Gate Emitter Leakage Current 0.5 uA. More details for CM1800DY-34S can be seen below.