Transistor reference for the 2SC5262, delivered as a 126 KB PDF and catalogued as a schematic. In the JIS system the 2SC prefix designates an NPN bipolar device; the name states nothing further about package or application. Use the document to identify base, collector and emitter, read the safe operating limits and compare candidate substitutes. Before desoldering anything, confirm the body marking matches, since adjacent numbers in the 2SC52xx series are distinct parts with their own specifications.
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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The standard format for schematics, block diagrams, power-sequence charts and service manuals.