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CUI Devices introduces industry’s smallest micro buzzer

27 October 2021

CUI Devices’s Audio Group announced the introduction of a 3.2 x 3.2mm magnetic transducer buzzer, making it among the smallest micro buzzers in the industry.

As the latest addition to CUI Devices’s micro buzzers line, the CMT-322-65-SMT-TR features a low profile of 2mm, surface mount packaging, and a sound pressure level (SPL) of 65dBA at 10cm. 

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 120mA, and a rated frequency of 4kHz. 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 (£1.24) per unit at 500 pieces through distribution. Please contact CUI Devices for OEM pricing.

For helpful resources and tools on buzzers, check out the Resource Library that houses a range of blog posts, videos, and more.


• Product name: CMT-322-65-SMT-TR
• Availability: Stock to eight weeks
• Possible users: Portable equipment and space-constrained designs
• Primary features: 3.2 x 3.2 x 2mm package, SPL of 65 dBA at 10cm
• Cost: $1.65 (£1.24) per unit at 500 pieces through distribution

View details for the CMT-322-65-SMT-TR.

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