Datasheet-style PDF of 88.9 KB for the 2SC4361, listed in the schematic category although the file name holds nothing but the part number. In Japanese JIS numbering the 2SC prefix identifies an NPN bipolar transistor, and parts are often stamped C4361 without the 2S. Open it in any PDF viewer to read the pin assignment, case drawing, gain range and maximum collector voltage and current, which is what you need when testing a suspect device in circuit or sourcing an equivalent for a power or signal stage.
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.