The SSM6J771G from Toshiba is a MOSFET with Continous Drain Current -5 A, Drain Source Resistance 23 to 47.5 Milliohm, Drain Source Breakdown Voltage -20 V, Gate Source Voltage -12 to 12 V, Gate Source Threshold Voltage -1.2 to -0.5 V. Tags: Surface Mount. More details for SSM6J771G can be seen below.