Documentation for the base 2SC5265 part, a 112 KB PDF in the schematic category. Under JIS designations 2SC stands for an NPN bipolar transistor; a separate LS-suffixed version of this number also exists in the index, so make sure you need the plain variant. The sheet is the place to read pinout, package outline and absolute maximum ratings. Repairers rely on it when testing a suspected short between collector and emitter and when sourcing an equivalent whose specifications match or exceed the original.
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.