The IXFX40N90P from Littelfuse is a MOSFET with Continous Drain Current 40 A, Drain Source Resistance 230 Milliohm, Drain Source Breakdown Voltage 900 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 3.5 to 6.5 V. Tags: Through Hole. More details for IXFX40N90P can be seen below.