A 304 KB PDF for the 2N4400 with an RE suffix, which may denote a revised or alternate edition of the document, though the name leaves it undefined. Although indexed as a schematic, it is best read as the part datasheet. Use it to verify lead identification, maximum ratings and characteristic tables when testing or replacing the device. Compare the package outline to the actual component and cross-check with other editions if figures disagree.
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.
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