The 90.8 KB PDF is named only 2SJ273, a part number in the JIS series used for P-channel FETs. Despite the schematic label in the catalogue, this is best treated as a transistor datasheet rather than a device diagram. It is handy when a shorted switch element must be confirmed and replaced, offering pin identification, on-resistance, gate threshold and thermal limits. View it in any PDF application, and before substituting, make sure the package and lead order of the alternative match the original footprint.
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.