Small 39.7 KB PDF for the 2SC3526, carrying an _E suffix in its name whose meaning, perhaps a language edition or document revision, cannot be confirmed from the name alone. Filed among schematics, it is in practice a datasheet for an NPN transistor, since the JIS 2SC prefix denotes high-frequency NPN bipolar devices. Its brevity suggests a condensed sheet with ratings and pinout. Use it to check leg order and limits before substituting, and confirm the package and marking on the board match.
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.