The IXTP170N13X4 from Littelfuse is a MOSFET with Continous Drain Current 170 A, Drain Source Resistance 6.3 Milliohm, Drain Source Breakdown Voltage 135 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2.5 to 4.5 V. Tags: Through Hole. More details for IXTP170N13X4 can be seen below.