Small 41.7 KB PDF for the 2SC5346; the _E suffix possibly marks an English edition, though the name alone cannot confirm this. The 2SC prefix follows the JIS scheme for NPN high-frequency transistors, so the file is likely a single-part datasheet rather than a circuit diagram. Technicians use such sheets for pinout, maximum voltages and currents, and gain classes when checking or replacing the transistor. View it in a PDF reader and confirm the component marking 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.