Catalogued among schematics, this 103 KB PDF is labelled only 2SJ263. In the Japanese JIS designation system the 2SJ prefix covers P-channel field-effect transistors, so the document most likely is that part's datasheet. A technician would use it for lead identification, voltage and current limits, gate charge or threshold data and package dimensions when diagnosing a failed output or switching stage. View it in any PDF reader, and confirm that a substitute matches channel type, ratings and pin order.
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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