The YJQ3407A from Yangjie Electronic Technology is a MOSFET with Continous Drain Current -5.5 A, Drain Source Resistance 34 to 64 milliohm, Drain Source Breakdown Voltage -30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage -2.4 to -1 V. Tags: Surface Mount. More details for YJQ3407A can be seen below.