The 2SC2347 is the subject of this 292 KB PDF, filed as a schematic but most likely a datasheet for the NPN transistor. In JIS numbering, 2SC denotes NPN devices, and boards usually show only an abbreviated C2347 marking. Technicians consult the ratings and characteristic tables to judge a suitable substitute. Check the lead order on the package drawing, because equivalent transistors in the same case style do not always share the same pinout.
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.
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