New Audio Piezo Buzzers

Piezo Buzzers

Piezo devices have proven to be long-lasting, weather-resistant, high-quality products, with excellent long-term repeatability of the output signal. A wide variety of applications of piezo buzzers in use today range across fire and safety, home and retail security, home automation, point of sale/purchase, medical devices, hand-held electronics, kiosks, and industrial products.

Frequently Asked Questions

How to choose between magnetic Vs piezo transducers for a medical device alert?
We have extensive experience providing alert solutions for medical applications. We recently released piezoelectric-based medical indicators that comply with IEC 60601-1-8 for general ventilation, oxygen, and cardiovascular applications. https://puiaudio.com/resource/iec-60601-8-application-guide/

How to tune piezo transducers for resonance in a wearable?
Piezo buzzers and transducers have a natural mechanical resonance at which they vibrate most efficiently, typically specified in the datasheet. For optimal performance, the transducer should be firmly mounted to the PCB or enclosure to ensure efficient vibration transmission. In a wearable, the casing acts as a small acoustic chamber, and its size and shape can shift both the resonant frequency and the SPL output. To tune the device, apply a range of frequencies around the transducer’s nominal resonance to identify the peak SPL. Even small changes in position, enclosure design, or drive frequency can significantly impact resonance in compact wearable devices.