The IXFT80N65X2HV from Littelfuse is a MOSFET with Continous Drain Current 80 A, Drain Source Resistance 38 Milliohm, Drain Source Breakdown Voltage 650 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 3.5 to 5 V. Tags: Surface Mount. More details for IXFT80N65X2HV can be seen below.