The IXFK120N30P3 from Littelfuse is a MOSFET with Continous Drain Current 120 A, Drain Source Resistance 27 Milliohm, Drain Source Breakdown Voltage 300 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 3 to 5 V. Tags: Through Hole. More details for IXFK120N30P3 can be seen below.