2N4402

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General-purpose PNP silicon small-signal transistor housed in a plastic TO-92 package, engineered to serve as the complementary pairing to the NPN 2N4400 in balanced low-power outp ut stages. Equivalents: BC557, PN4402, NTE159. Real-Life Examples: Vintage consumer cassette tape recorder preamps, low-cost intercom systems, and space-constrained data processing sub-modules. Show more