The IXFX170N20P from Littelfuse is a MOSFET with Continous Drain Current 170 A, Drain Source Resistance 14 Milliohm, Drain Source Breakdown Voltage 200 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2.5 to 4.5 V. Tags: Through Hole. More details for IXFX170N20P can be seen below.