Datasheet PDF for the 2SA1681 transistor, 185 KB, listed in the schematic category. Only the part number is stated in the name. In JIS numbering, the 2SA prefix marks a PNP bipolar transistor of the high-frequency class. A technician uses it to identify base, collector and emitter, check the package style, and compare voltage, current and frequency characteristics against a substitute. Verify the device marking, typically A1681 on the body, before relying on the sheet.
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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