The TPHR9203PL1 from Toshiba is a MOSFET with Continous Drain Current 320 A, Drain Source Resistance 0.61 to 1.29 milliohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.1 to 2.1 V. Tags: Surface Mount. More details for TPHR9203PL1 can be seen below.