This part is a kind of semiconductor called AP9990GH-HF.

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

Manufacturers : Advanced Power Electronics

Image and pinout :

Some of the text within the PDF file :

AP9990GH-HF Halogen-Free Product Advanced Power Electronics Corp. ▼ Simple Drive Requirement ▼ Lower On-resistance ▼ Fast Switching Characteristic ▼ RoHS Compliant & Halogen-Free G S N-CHANNEL ENHANCEMENT MODE POWER MOSFET D BVDSS RDS(ON) ID 60V 6mΩ 100A Description Advanced Power MOSFETs fromfrom APEC provide the the The Advanced Power MOSFETs APEC provide designer with the best combination of fast switching, designer with the best combination of fast switching, ruggedized ruggedized device device design, design, low low on-resistance on-resistance and and cost-effectiveness. cost-effectiveness. The TO-252 package is widely preferred for commercial-industrial surface mount applications and suited for low voltage applications such as DC/DC converters. G D S TO-252(H) Absolu [ ... ]

AP9990GH-HF PDF Datasheet Download