This part is a kind of semiconductor called AP2309GN-HF.

Function of this product has P-CHANNEL ENHANCEMENT MODE POWER MOSFET.

Manufacturers : Advanced Power Electronics

Image and pinout :

Some of the text within the PDF file :

AP2309GN-HF Halogen-Free Product Advanced Power Electronics Corp. ▼ Simple Drive Requirement ▼ Small Package Outline ▼ Surface Mount Device ▼ RoHS Compliant S SOT-23 G D P-CHANNEL ENHANCEMENT MODE POWER MOSFET BVDSS RDS(ON) ID -30V 75mΩ - 3.7A Description D Advanced Power MOSFETs from APEC provide the designer with the best combination of fast switching, low on-resistance and cost-effectiveness. The SOT-23 package is widely preferred for commercial-industrial surface mount applications and suited for low voltage applications such as DC/DC converters. G S Absolute Maximum Ratings Symbol VDS VGS ID@TA=25℃ ID@TA=70℃ IDM PD@TA=25℃ TSTG TJ Parameter Drain-Source Voltage Gate-Source Voltage Continuous Drain Current Pulsed Drain Current 1 3 3 Rating - 30 +20 - 3.7 -3 -12 [ ... ]

AP2309GN-HF PDF Datasheet Download