The FZ400R12KE3B1 from Infineon Technologies is a IGBT with Gate Emitter Voltage -20 to 20 V, Saturated Collector Emitter Voltage 1.70 to 2.15 V, DC Collector Current 400 A, Peak Collector Current 800 A, DC Forward Current 400 A. More details for FZ400R12KE3B1 can be seen below.