FAQ

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1. Should I choose magnetic buzzers or piezo buzzers?

Magnetic buzzer is powered by electrical current. Its acoustic vibration is produced by electro-magnetic force, which increases as current increases. On the other hand, piezo buzzer is powered by electrical voltage. Its acoustic vibration is produced by piezoelectric force, which increases as voltage increases.

Thus, magnetic buzzer features low input voltage to a minimum of 1.5V, smaller size yet higher consumption current ranging from 40mA to 150mA. On the other hand, piezo buzzer feature low input current to a minimum of 1mA to 10mA, higher SPL yet higher driving voltage at least 3V.

Clients are advised to decide according to their circuit characteristics, and what type of energy they expect to drive our buzzers. As a rule of thumb, if power is supplied by batteries, such as in portable devices, then we recommend piezo buzzers; if power is supplied by constant source, such as in PCs or automotive alarms, then we recommend electromagnetic buzzers.

     

 

Distribution Partner for USound

USound is a fabless audio company offering high-performance silicon speakers and high-quality sound solutions based on MEMS (Micro-Electro-Mechanical Systems) technology, safeguard by over 150 patents. With its offices in Graz, Vienna, San Francisco, Shenzhen, USound serves international customers, enabling them to create innovative smart audio applications with MEMS speakers.

Address: Kratkystraße 2 8020 Graz, Austria. 
Phone: +43-720-022463

2F No. 207, Section 6, Zhongshan North Road, Shilin District Taipei City, 111, Taiwan (R.O.C.) TEL: +886-2-8866-5255
Fax: +886-2-8866-5250
sales-tp@aatc.tw