The FTK2306D from First Silicon is a MOSFET with Continous Drain Current 50 to 80 A, Drain Source Resistance 4.4 to 8.8 milli-ohm, Drain Source Breakdown Voltage 20 V, Gate Source Voltage -10 to 10 V, Gate Source Threshold Voltage 0.35 to 1 V. Tags: Surface Mount. More details for FTK2306D can be seen below.