The SSM6J511NU from Toshiba is a MOSFET with Continous Drain Current -14 A, Drain Source Resistance 6.5 to 19.2 Milliohm, Drain Source Breakdown Voltage -12 V, Gate Source Voltage -10 to 10 V, Gate Source Threshold Voltage -0.3 to -1 V. Tags: Surface Mount. More details for SSM6J511NU can be seen below.