The SSM3K122TU from Toshiba is a MOSFET with Continous Drain Current 2 A, Drain Source Resistance 87 to 304 Milliohm, Drain Source Breakdown Voltage 20 V, Gate Source Voltage -10 to 10 V, Gate Source Threshold Voltage 0.35 to 1 V. Tags: Surface Mount. More details for SSM3K122TU can be seen below.