The 2MBI400XHA170-50 from Fuji Electric is a IGBT with Gate Emitter Voltage -20 to 20 V, Saturated Collector Emitter Voltage 1.65 to 2.25 V, DC Collector Current 400 A, Peak Collector Current 800 A, DC Forward Current 400 A. More details for 2MBI400XHA170-50 can be seen below.