Component documentation for the 2SC3306, a JIS-numbered NPN transistor, supplied as a 227 KB PDF in the schematic section. The file name carries only the part number, so details such as case style and electrical limits must be read inside. Open it in any PDF viewer when you need the pin order before desoldering, the safe operating area for a power stage, or a basis for comparing cross-reference candidates from other makers.
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)