PDF of 328 KB for the 2SC2713, listed under schematics, though the bare part number suggests a datasheet. In the JIS system, 2SC identifies NPN transistors. The name does not say who made it or in which package it comes. A technician turns to such a sheet to identify emitter, base and collector, to read voltage and dissipation limits, and to judge whether a replacement is suitable. It opens in any PDF viewer. Verify the marking on the component before using the data.
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.