The IXFB120N50P2 from Littelfuse is a MOSFET with Continous Drain Current 120 A, Drain Source Resistance 43 Milliohm, Drain Source Breakdown Voltage 500 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 3 to 5 V. Tags: Through Hole. More details for IXFB120N50P2 can be seen below.