The YJL2300J from Yangjie Electronic Technology is a MOSFET with Continous Drain Current 4.5 A, Drain Source Resistance 19 to 35 milliohm, Drain Source Breakdown Voltage 20 V, Gate Source Voltage -12 to 12 V, Gate Source Threshold Voltage 0.4 to 1 V. Tags: Surface Mount. More details for YJL2300J can be seen below.