The SSM6L12TU from Toshiba is a MOSFET with Continous Drain Current -0.5 to 0.5 A, Drain Source Resistance 140 to 430 Milliohm, Drain Source Breakdown Voltage -20 to 30 V, Gate Source Voltage -12 to 12 V, Gate Source Threshold Voltage -1.1 to 0.5 V. Tags: Surface Mount. More details for SSM6L12TU can be seen below.