The IXTT240N15X4HV from Littelfuse is a MOSFET with Continous Drain Current 240 A, Drain Source Resistance 4.4 Milliohm, Drain Source Breakdown Voltage 150 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2.5 to 4.5 V. Tags: Surface Mount. More details for IXTT240N15X4HV can be seen below.