The FF100R12KS4 from Infineon Technologies is a IGBT with Gate Emitter Voltage -20 to 20 V, Saturated Collector Emitter Voltage 3.20 to 3.85 V, DC Collector Current 100 A, Peak Collector Current 200 A, DC Forward Current 100 A. More details for FF100R12KS4 can be seen below.