Sat. Apr 11th, 2026

How Two Motorola Transistors Became the World’s Default NPNs



Registered by Motorola in 1962 and the mid-1960s, the 2N2222 and 2N3904 outlasted thousands of rivals through process innovation, cheap packaging, and a JEDEC numbering system that turned them into multi-sourced commodities.

By uttu

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