This part is a kind of semiconductor called AP2309GN-HF-3.

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 :

Advanced Power Electronics Corp. AP2309GN-HF-3 P-channel Enhancement-mode Power MOSFET Simple Drive Requirement Small Package Outline Surface Mount Device RoHS-compliant, Halogen-free D BV DSS R DS(ON) G S -30V 75mΩ -3.7A ID Description Advanced Power MOSFETs from APEC provide the designer with the best combination of fast switching, low on-resistance and cost-effectiveness. The AP2309GN-HF-3 is in the popular SOT-23 small surface-mount package which is widely used in commercial and industrial applications where a small board footprint is required. This device is well suited for use in medium current applications such as load switches. D S SOT-23 G Absolute Maximum Ratings Symbol VDS VGS ID at T A =25°C ID at TA= 70°C IDM PD at TA=25°C TSTG TJ Parameter Drain-Source Voltage [ ... ]

AP2309GN-HF-3 PDF Datasheet Download