This part is a kind of semiconductor called AP4525GEM-HF.

Function of this product has N AND 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. AP4525GEM-HF Halogen-Free Product N AND P-CHANNEL ENHANCEMENT MODE POWER MOSFET ▼ Simple Drive Requirement ▼ Low On-resistance ▼ Fast Switching Performance D2 D2 D1 D1 ▼ RoHS Compliant & Halogen-Free SO-8 Description G2 S2 G1 S1 N-CH P-CH BVDSS RDS(ON) ID BVDSS RDS(ON) ID 40V 28mΩ 6A -40V 42mΩ -5A AP4525 series are from Advanced Power innovated design and silicon process technology to achieve the lowest possible on-resistance and fast switching performance. It provides the designer with an extreme efficient device for use in a wide range of power applications. The SO-8 package is widely preferred for all commercialindustrial surface mount applications using infrared reflow technique and suited for voltage conversion or switch applicatio [ ... ]

AP4525GEM-HF PDF Datasheet Download