Named for the 2SC5318, this 127 KB PDF is filed as a schematic but reads as a component datasheet title. The 2SC code, per Japanese JIS rules, marks an NPN bipolar transistor. Expect a ratings table, gain and saturation figures, curves and the outline showing which lead is base, collector and emitter. The name gives nothing about maker or host equipment, so compare package and marking before use. It is useful when cross-referencing parts or checking a transistor removed from a faulty board.
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.