The YJJ12N02A from Yangjie Electronic Technology is a MOSFET with Continous Drain Current 5.5 A, Drain Source Resistance 19.5 to 94 milliohm, Drain Source Breakdown Voltage 20 V, Gate Source Voltage -10 to 10 V, Gate Source Threshold Voltage 0.45 to 1 V. Tags: Surface Mount. More details for YJJ12N02A can be seen below.