The YJG40G10A from Yangjie Electronic Technology is a MOSFET with Continous Drain Current 40 A, Drain Source Resistance 14 to 21.5 milliohm, Drain Source Breakdown Voltage 100 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1 to 2.5 V. Tags: Surface Mount. More details for YJG40G10A can be seen below.