The SSM3J133TU from Toshiba is a MOSFET with Continous Drain Current -5.5 A, Drain Source Resistance 24.9 to 56 Milliohm, Drain Source Breakdown Voltage -20 V, Gate Source Voltage -8 to 8 V, Gate Source Threshold Voltage -1 to -0.3 V. Tags: Surface Mount. More details for SSM3J133TU can be seen below.