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RF/Microwave??

Koyo Electronics buzzers eye cellphones, PDAs

Posted: 05 Dec 2003 ?? ?Print Version ?Bookmark and Share

Keywords:ad-8054 series? electromagnetic buzzer? koyo electronics? ad-8504-cq4-2-ds? ad-8504-cx4-2-ds?

The AD-8054 series of SMD type of electromagnetic buzzers from Koyo Electronics Co. Ltd is designed to suit cellphones, PDAs and pagers with its compact and rich sound. Featuring a rated voltage of 3.6Vdc, the buzzer consumes 100mA of power and has a resonant frequency of 2730Hz200 and coil resistance of 16 ohms 3. The products also have a sound output distance of 20cm and supply voltage range of 1.5V to 5V.

Measuring 8.5-by-8.5-by-4mm, the AD-8504-CQ4-2-DS buzzer has a SPL of 97dB, while the AD-8504-CX4-2-DS features a SPL of 100dB.





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