The FTK3404A from First Silicon is a MOSFET with Continous Drain Current 4.5 to 5.6 A, Drain Source Resistance 17 to 38 milli-ohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1 to 2.2 V. Tags: Surface Mount. More details for FTK3404A can be seen below.