The IXFZ140N25T from Littelfuse is a MOSFET with Continous Drain Current 100 A, Drain Source Resistance 17 Milliohm, Drain Source Breakdown Voltage 250 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2.5 to 5 V. Tags: Surface Mount. More details for IXFZ140N25T can be seen below.