CUI Devices 4mm Micro Buzzer | Digi-Key Daily

2,839 views · Published 11 July 2016 · 0:59 · Indexed 21 October 2026

Channel: DigiKey · 2016 · Science & Technology

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CUI Device offers one of the smallest micro buzzers in the industry.  The CMT-4023S-SMT is a magnetic transducer buzzer housed in a compact 4mm x 4mm surface mount package with a low 2mm profile.  This externally driven device operates at a frequency of 4000 Hz and has a 70dB sound pressure level at 10 centimeters.  When operating at its typical rated voltage of 3 VDC, this 17-ohm coil buzzer consumes 90mA of current.  With an operating temperature range of -20⁰C to 70⁰C and weighing only 0.07 grams this micro buzzer is ideal for portable equipment operations. http://www.digikey.com/en/product-highlight/c/cui/micro-buzzers

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