The FTK1012S from First Silicon is a MOSFET with Continous Drain Current 0.8 A, Drain Source Resistance 220 to 360 milli-ohm, Drain Source Breakdown Voltage 20 V, Gate Source Voltage -8 to 8 V, Gate Source Threshold Voltage 0.5 to 1 V. Tags: Surface Mount. More details for FTK1012S can be seen below.