The FTK3912 from First Silicon is a MOSFET with Continous Drain Current 5.7 to 9 A, Drain Source Resistance 16 to 28 milli-ohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.2 to 2 V. Tags: Surface Mount. More details for FTK3912 can be seen below.