The DIM800DDM17-PS500 from Dynex Semiconductor is a IGBT with Gate Emitter Voltage -20 to 20 V, Saturated Collector Emitter Voltage 2.3 to 3.1 V, DC Collector Current 800 A, Peak Collector Current 1600 A, DC Forward Current 800 A. More details for DIM800DDM17-PS500 can be seen below.