A 124 KB PDF for the 2N5038 bearing an RE suffix, which may indicate a revised or alternate copy of the document; the name does not explain it. Although filed as a schematic, it should be read as a component datasheet. Use it to confirm lead assignment, power dissipation, voltage and current limits when diagnosing or replacing the part in a power stage. Check the case style shown against the device, and consider mounting and heatsinking notes given in the sheet.
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.