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piezo speaker max. voltage

Discussion in 'Electronic Components' started by Bernhard Kuemel, Jul 25, 2012.

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  1. Hi sec!

    What's the maximum useful voltage a piezo speaker can take? I thought of
    putting it in parallel to a Geiger Mueller tube or an Ne-2 bulb as an
    improvised geiger counter.

    The piezo speakers I have are salvaged from other devices so I have no
    data sheets. Looking at other datasheets the maximum specified voltage
    was 30 V. I have created about 50 V by flexing a piezo speaker, though.
    One datasheet specified "DC Voltage Not to be applied between
    electrodes"[1]. I'd be having 80+ V DC.

    Thanks, Bernhard

    [1] Sheets/AVX PDFs/KBS-27DA-5C-105_.pdf
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