Indexed as a schematic, this 97.4 KB PDF carries only the 2N5088 part number and is best treated as a component datasheet. No manufacturer or document revision is given in the name. It serves for confirming which lead is which, reading the absolute maximum ratings and comparing electrical parameters when hunting for an equivalent part. Before trusting the pinout, compare the package type shown in the document with the device on your board, as lead orders can vary between suppliers.
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.
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The standard format for schematics, block diagrams, power-sequence charts and service manuals.