The YJL3134KBW from Yangjie Electronic Technology is a MOSFET with Continous Drain Current 0.5 A, Drain Source Resistance 220 to 700 milliohm, Drain Source Breakdown Voltage 20 V, Gate Source Voltage -12 to 12 V, Gate Source Threshold Voltage 0.35 to 1.1 V. Tags: Surface Mount. More details for YJL3134KBW can be seen below.