Here is a 42.3 KB PDF for the 2SC5264LS, indexed as a schematic. JIS numbering makes the 2SC prefix an NPN bipolar transistor, and the LS letters identify a variant of the 2SC5264, probably a package or lead-form difference that the name itself does not spell out. Compare the outline drawing with the physical part before ordering, since a different case may not fit the footprint. The document also supplies the electrical limits needed to evaluate substitutes when the exact suffix is unavailable.
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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