This part is a kind of semiconductor called AP4435GH-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 :

AP4435GH/J-HF Halogen-Free Product Advanced Power Electronics Corp. ▼ Simple Drive Requirement ▼ Lower On-resistance ▼ Fast Switching Characteristic ▼ RoHS Compliant & Halogen-Free G S D P-CHANNEL ENHANCEMENT MODE POWER MOSFET BVDSS RDS(ON) ID -30V 20mΩ -40A Description Advanced Power MOSFETs from APEC provide the designer with the best combination of fast switching, ruggedized device design, low on-resistance and cost-effectiveness. 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 (AP4435GJ) is available for low-profile applications. G D S TO-251(J) G D S TO-252(H) Absolute Maximum Ratings Symbol VDS VGS ID@TC=25℃ ID@TC=100℃ IDM [ ... ]

AP4435GH-HF PDF Datasheet Download