Datasheet-style PDF for the 2SD1827, size 135 KB, filed under the schematic category. The part number follows the Japanese JIS system, where 2SD identifies an NPN low-frequency bipolar transistor. Consult it for VCEO, IC, power dissipation, saturation voltage and hFE grouping when diagnosing a shorted or open junction or sourcing a replacement. Confirm the printed code on the device, since abbreviated markings often drop the 2S prefix.
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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