Component sheet for the 2SA1866 PNP bipolar transistor, stored as a 55.4 KB PDF. The 2SA prefix follows Japanese JIS conventions for PNP devices. The file is listed as a schematic but describes a single part, so treat it as a datasheet. It is useful for identifying leads before fitting a replacement, checking collector-emitter voltage and current ratings, and confirming the case outline fits the board pads. Compare the marking on the original, often shortened to A1866, and any rank letter before substituting.
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.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.