2SA643

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PNP silicon epitaxial small-signal transistor housed in a plastic TO-92 package, optimized for general-purpose low-frequency amplification and switching circuits. Equivalents: 2SA6 43-O, 2SA643-Y, NTE290A. Real-Life Examples: Vintage consumer cassette tape player audio preamps, tabletop AM/FM clock radios, handheld electronic toys. Show more