The FTK3139PP from First Silicon is a MOSFET with Continous Drain Current -0.66 A, Drain Source Resistance 450 to 950 milli-ohm, Drain Source Breakdown Voltage -20 V, Gate Source Voltage -12 to 12 V, Gate Source Threshold Voltage -0.35 to -1.1 V. Tags: Surface Mount. More details for FTK3139PP can be seen below.