This 755 KB PDF is indexed as a schematic and carries only the JEDEC part number 2N5486. The identical size of the 2N5484 and 2N5485 files suggests one shared datasheet for the series, though that is not confirmed by the name. Expect pin layout, package and electrical characteristics for the discrete device. Technicians rely on such sheets to check orientation and parameters before replacement. No brand or board is given, so verify the code on the actual part.
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.