2N5221

Green Brook Online Verified independent store

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General-purpose NPN silicon small-signal transistor housed in a plastic TO-92 package, engineered for low-noise small-signal audio voltage amplification and clean electronic signal switching. Equivalents: BC548, NTE123A. Real-Life Examples: Vintage cassette tape deck audio preamps, portable electronic testing indicators, and space-constrained data processing sub-modules. Show more