The SSM3J374R from Toshiba is a MOSFET with Continous Drain Current -4 A, Drain Source Resistance 54 to 136 Milliohm, Drain Source Breakdown Voltage -30 V, Gate Source Voltage -20 to 10 V, Gate Source Threshold Voltage -2 to -0.8 V. Tags: Surface Mount. More details for SSM3J374R can be seen below.