The FTK3911L from First Silicon is a MOSFET with Continous Drain Current -2.6 to -4.1 A, Drain Source Resistance 47 to 100 milli-ohm, Drain Source Breakdown Voltage -30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage -1.2 to -2.2 V. Tags: Surface Mount. More details for FTK3911L can be seen below.