This part is a kind of semiconductor called AP9985GM-HF-3.
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 :
Advanced Power Electronics Corp. AP9985GM-HF-3 N-channel Enhancement-mode Power MOSFET Simple Drive Requirement Low On-Resistance Fast Switching Performance RoHS-compliant, halogen-free D BV DSS G S 40V 15mΩ 10A RDS(ON) ID Description D Advanced Power MOSFETs from APEC provide the designer with the best combination of fast switching, low on-resistance and cost-effectiveness. The AP9985GM-HF-3 is in the SO-8 package, which is widely used for commercial and industrial surface-mount applications, and is well suited for low voltage applications such as DC/DC converters. D D D G SO-8 (M) S S S Absolute Maximum Ratings Symbol VDS VGS ID at TA=25°C ID at TA= 70°C IDM PD at TA=25°C TSTG TJ Parameter Drain-Source Voltage Gate-Source Voltage Continuous Drain Current Continuous Dra [ ... ]