The IXFX20N120P from Littelfuse is a MOSFET with Continous Drain Current 20 A, Drain Source Resistance 570 Milliohm, Drain Source Breakdown Voltage 1200 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 3.5 to 6.5 V. Tags: Through Hole. More details for IXFX20N120P can be seen below.