The TPWR7904PB from Toshiba is a MOSFET with Continous Drain Current 150 A, Drain Source Resistance 0.65 to 1.3 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 TPWR7904PB can be seen below.