Datasheet-type PDF of 41.7 KB for the 2SD1385, catalogued as a schematic; the JIS 2SD prefix identifies an NPN bipolar transistor for low-frequency applications. The _E suffix in the name may indicate an English-language edition, though the name does not confirm it. Use the sheet for pin identification, maximum ratings and gain figures when diagnosing or replacing the part. No manufacturer or package is stated, so compare the original marking and outline before choosing a substitute.
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.