The YJL2305B from Yangjie Electronic Technology is a MOSFET with Continous Drain Current -5.4 A, Drain Source Resistance 27 to 63 milliohm, Drain Source Breakdown Voltage -20 V, Gate Source Voltage -10 to 10 V, Gate Source Threshold Voltage -1 to 0.4 V. Tags: Surface Mount. More details for YJL2305B can be seen below.