The FTK84U from First Silicon is a MOSFET with Continous Drain Current 130 mA, Drain Source Resistance 5 to 10 ohm, Drain Source Breakdown Voltage 50 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 0.8 to 2.0 V. Tags: Surface Mount. More details for FTK84U can be seen below.