2N4109

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High-speed, high-voltage PNP silicon planar epitaxial small-signal transistor housed in a metal TO-18 can, optimized for fast core memory driver applications and high-frequency swi tching circuits. Equivalents: 2N2907A (similar core parameters), NTE159. Real-Life Examples: Legacy mainframe computing logic bays, telecommunication routing switches, and high-reliability aerospace tracking modules. Show more