The FTK4806T from First Silicon is a MOSFET with Continous Drain Current 19 to 30 A, Drain Source Resistance 7.2 to 12 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 FTK4806T can be seen below.