The FTK9451 from First Silicon is a MOSFET with Continous Drain Current -2.3 A, Drain Source Resistance 0.135 to 0.240 ohm, Drain Source Breakdown Voltage -20 V, Gate Source Voltage -12 to 12 V, Gate Source Threshold Voltage -0.50 to -1.50 V. Tags: Surface Mount. More details for FTK9451 can be seen below.