The FTK4701 from First Silicon is a MOSFET with Continous Drain Current 4.3 to 7.2 A, Drain Source Resistance 24 to 45 milli-ohm, Drain Source Breakdown Voltage 40 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.0 to 2.5 V. Tags: Surface Mount. More details for FTK4701 can be seen below.