The IXTA230N04T4 from Littelfuse is a MOSFET with Continous Drain Current 230 A, Drain Source Resistance 2.9 Milliohm, Drain Source Breakdown Voltage 40 V, Gate Source Voltage -15 to 15 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Surface Mount. More details for IXTA230N04T4 can be seen below.