The IXTN600N04T2 from Littelfuse is a MOSFET with Continous Drain Current 600 A, Drain Source Resistance 1.3 Milliohm, Drain Source Breakdown Voltage 40 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.5 to 3.5 V. Tags: Chassis Mount. More details for IXTN600N04T2 can be seen below.