The SSM6N40TU from Toshiba is a MOSFET with Continous Drain Current 1.6 A, Drain Source Resistance 96 to 182 milliohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1 to 2.6 V. Tags: Surface Mount. More details for SSM6N40TU can be seen below.