The FTK05N10S from First Silicon is a MOSFET with Continous Drain Current 5 A, Drain Source Resistance 140 milli-ohm, Drain Source Breakdown Voltage 100 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1 to 2 V. Tags: Surface Mount. More details for FTK05N10S can be seen below.