PDF of 219 KB titled with the 2SC3307 part number and placed in the schematic category, though it is most likely a transistor datasheet. The 2SC designation follows the JIS standard for NPN types. Nothing else about package, gain or ratings appears in the name, so consult the pages directly. Repair technicians rely on such sheets to identify leads, confirm maximum collector voltage and current, and pick a suitable substitute when the original is obsolete.
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.
Any PDF readerSumatraPDFFirefox / ChromeFlexBV (links PDF to boardview)