Alpha and Omega Semiconductor datasheet for the AO4409, a P-channel MOSFET in an SO-8 package, delivered as a 302 KB PDF. Parts like this commonly act as load switches or power-path switches on laptop boards, for example selecting adapter or battery input. The sheet gives the pinout, on-resistance, gate threshold and maximum drain voltage and current. Use it to identify source, gate and drain pins, test for a shorted channel with a meter, and pick a replacement with equal or better ratings.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @ic_mosfet_pdf_datasheets. Enginerys does not host this file.
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