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Date: 21-06-14

Small and light weight piezo sounder/buzzer for medical devices

Murata has commenced mass production of small and light weight SMD piezoelectric sounder/buzzer. PKMCS0909E4000-R1 measures just 9×9×1.7mm and weighs only 160mg.

Sound pressure level output, measured 10 cm from sounder, is better than 65dB when driven with a ±1.5V 4kHz square wave. Maximum peak-to-peak voltage is ±12.5V. Power consumption is typically 0.6mW. This sounder does not use any magnets or coils to create sound it doesn’t generate any electrical noise and therefore has minimum impact on surrounding circuitry.

Typical applications for the PKMCS0909E4000-R1 include blood glucose meters, personal thermometers, camera strobe flash and Bluetooth dongles.

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