The file name here, 25f, is too short to identify a specific device or part with certainty; the entry is a 69.3 KB PDF placed under schematics. It may belong to a component family whose codes begin with 25F, but the name does not confirm that. Open it in a PDF reader to see what it actually covers before planning a repair around it. Once identified, such a document is used to check pinouts, ratings or circuit details, and the codes printed on the board should always be matched against it.
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 @cyberlanelectonik. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.