Friday, December 5, 2025

CUI Devices Introduces Industry’s Smallest Micro Buzzer

 CUI Devices’ Audio Group today announced the introduction of a 3.2 mm x 3.2 mm magnetic transducer buzzer, making it among the smallest micro buzzers in the industry. As the latest addition to CUI Devices’ micro buzzers line, the CMT-322-65-SMT-TR features a low profile of 2 mm, surface mount packaging, and a sound pressure level (SPL) of 65 dBA at 10 cm. 

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Ideal for portable equipment applications and space-constrained designs, this magnetic audio transducer carries a rated voltage of 3 Vo-p, low current consumption of 120 mA, and a rated frequency of 4 kHz. The CMT-322-65-SMT-TR also offers an operating temperature range from -20 to 70°C and reflow solder compatibility.

The CMT-322-65-SMT-TR is available immediately with prices starting at $1.65 per unit at 500 pieces through distribution. 

Summary
Product name: CMT-322-65-SMT-TR
Availability: Stock to 8 weeks
Possible users: Portable equipment and space-constrained designs
Primary features: 3.2 x 3.2 x 2 mm package, SPL of 65 dBA at 10 cm
Cost: $1.65 per unit at 500 pieces through distribution

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Sharon Katta
Sharon Katta
Sharon holds a Master of Science (MS) degree in Wireless Communication and Signal Processing from the University of Bristol.

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