The AP1333GU-HF from Advanced Power Electronics Corp is a MOSFET with Continous Drain Current -440 to -550 mA, Drain Source Resistance 600 to 1000 milli-ohm, Drain Source Breakdown Voltage -20 V, Gate Source Voltage -12 to 12 V, Gate Source Threshold Voltage -0.5 to -1.2 V. Tags: Surface Mount. More details for AP1333GU-HF can be seen below.