The AP6B1K0EU6 from Advanced Power Electronics Corp is a MOSFET with Continous Drain Current -310 to -390 mA, Drain Source Resistance 1 to 1.4 ohm, Drain Source Breakdown Voltage -60 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage -1 to -3 V. Tags: Surface Mount. More details for AP6B1K0EU6 can be seen below.