The IXFB30N120P from Littelfuse is a MOSFET with Continous Drain Current 30 A, Drain Source Resistance 350 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 IXFB30N120P can be seen below.