The TPHR7404PU from Toshiba is a MOSFET with Continous Drain Current 400 A, Drain Source Resistance 0.51 to 1.17 milliohm, Drain Source Breakdown Voltage 40 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2 to 3 V. Tags: Surface Mount. More details for TPHR7404PU can be seen below.