English-language edition of the 2SC5379 datasheet, as the _E suffix in the name suggests, supplied as a 44.7 KB PDF. The 2SC prefix denotes an NPN bipolar transistor under the JIS registration system. Indexed here as a schematic, it is better understood as a component reference sheet holding ratings, characteristic data and the package outline. Technicians use it to verify pinout before soldering and to compare specifications when sourcing a replacement. Confirm the printed marking on the part matches first.
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.