Vishay Siliconix datasheet for the Si7129DN, a P-channel MOSFET in the PowerPAK 1212-8 package, stored as a 603 KB PDF. Parts of this type often act as power-path or load switches, for example on battery and adapter input lines in notebooks. The document covers the pinout, on-resistance at several gate voltages, the threshold and the package footprint. Use it to confirm the drain pad and source pins when probing a missing rail, and compare ratings before substituting another P-channel device.
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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