The FTK2721NPDFN22 from First Silicon is a MOSFET with Continous Drain Current 3.3 to 5.8 A, Drain Source Resistance 20 to 70 milli-ohm, Drain Source Breakdown Voltage 20 V, Gate Source Voltage -10 to 10 V, Gate Source Threshold Voltage 0.3 to 1 V. Tags: Surface Mount. More details for FTK2721NPDFN22 can be seen below.