The TPH1R306P1 from Toshiba is a MOSFET with Continous Drain Current 260 A, Drain Source Resistance 0.96 to 2.3 milliohm, Drain Source Breakdown Voltage 60 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.5 to 2.5 V. Tags: Surface Mount. More details for TPH1R306P1 can be seen below.