This part is a kind of semiconductor called AP18P10GS-HF-3.

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. AP18P10GS-HF-3 P-channel Enhancement-mode Power MOSFET Simple Drive Requirement Low Gate Charge Fast Switching Performance RoHS-compliant, halogen-free D BV DSS RDS(ON) G S -100V 160mΩ -12A ID Description Advanced Power MOSFETs from APEC provide the designer with the best combination of fast switching, low on-resistance and cost-effectiveness. The AP18P10GS-HF-3 is in the TO-263 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 (tab) G D S TO-263 (S) Absolute Maximum Ratings Symbol VDS VGS ID at TC=25°C ID at TC=100°C IDM PD at TC=25°C EAS IAR TSTG TJ Parameter Drain-Source Voltage Gate-Source Voltage Continuous Drain Current Cont [ ... ]

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