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Ed Nisley's Blog: Shop notes, electronics, firmware, machinery, 3D printing, laser cuttery, and curiosities. Contents: 100% human thinking, 0% AI slop.

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  • 7 mm Tactile Switch Pinout

    As is usually the case, the assortment of tiny switches arrived with no pinout documentation. The 6 mm square SMD switches were easy, but the 7 mm through-hole switches posed a puzzle.

    With the switch standing to make the return spring visible as shown, the pinout looks like this:

    7mm Tactile Switch pinout
    7mm Tactile Switch pinout

    TIL, somewhat to my surprise, both the latching and momentary 7 mm switches have DPDT contacts!

    Now I know how to wire the next thing …