The SSM6J401TU from Toshiba is a MOSFET with Continous Drain Current -2.5 A, Drain Source Resistance 53 to 145 Milliohm, Drain Source Breakdown Voltage -30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage -2.6 to -1.2 V. Tags: Surface Mount. More details for SSM6J401TU can be seen below.