The YJG40NP03A from Yangjie Electronic Technology is a MOSFET with Continous Drain Current -40 to 40 A, Drain Source Resistance 8 to 27 milliohm, Drain Source Breakdown Voltage -30 to 30 V, Gate Source Voltage -25 to 25 V, Gate Source Threshold Voltage -2.8 to 2.5 V. Tags: Surface Mount. More details for YJG40NP03A can be seen below.