For the 2SC3326, this 281 KB PDF is filed as a schematic although its title points to a component datasheet. A 2SC code in the Japanese JIS scheme denotes an NPN bipolar transistor. Expect voltage, current and dissipation limits, characteristic curves and a mechanical package drawing. The file name names no maker or equipment, so match the printed code and case. It is a practical reference when testing a suspect transistor, identifying leads and choosing an equivalent replacement.
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.