This part is a kind of semiconductor called AP18P10AGJ-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 :

Advanced Power Electronics Corp. AP18P10AGH/J-HF Halogen-Free Product P-CHANNEL ENHANCEMENT MODE POWER MOSFET ▼ Lower Gate Charge D ▼ Simple Drive Requirement ▼ Fast Switching Characteristic ▼ RoHS Compliant & Halogen-Free G S Description Advanced Power MOSFETs from APEC provide the designer with the best combination of fast switching, ruggedized device design, low onresistance and cost-effectiveness. BVDSS RDS(ON) ID -100V 140mΩ -12A G D S TO-252(H) The TO-252 package is widely preferred for all commercial-industrial surface mount applications and suited for low voltage applications such as DC/DC converters. The through-hole version (AP18P10AGJ) is available for low-profile applications. G D S TO-251(J) Absolute Maximum Ratings@Tj=25oC(unless otherwise specified) [ ... ]

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