The SSM3J358R from Toshiba is a MOSFET with Continous Drain Current -6 A, Drain Source Resistance 17.5 to 49.3 Milliohm, Drain Source Breakdown Voltage -20 V, Gate Source Voltage -10 to 10 V, Gate Source Threshold Voltage -1 to -0.3 V. Tags: Surface Mount. More details for SSM3J358R can be seen below.