The IXFH78N60X3 from Littelfuse is a MOSFET with Continous Drain Current 78 A, Drain Source Resistance 38 Milliohm, Drain Source Breakdown Voltage 600 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 3.5 to 5 V. Tags: Through Hole. More details for IXFH78N60X3 can be seen below.