Murata’s sound components (buzzers) utilize the natural vibration of piezoelectric ceramics.
Used in a wide range of applications from consumer devices, such as home appliances, and consumer products such as automobiles, industrial devices, and small mobile terminals. Can be used not only as a device for sound confirmation, but also as melody and voice speakers.
Lineup
Piezoelectric Sounder
A piezoelectric diaphragm is incorporated in a plastic case (resonator). The diaphragm vibrates and produces sound due to an external signal.
Piezoelectric Diaphragm
The Piezoelectric element is bonded to a metal plate.
Below are 2 examples of types of usage. The shape of the electrode will differ accordingly.
- External drive type (vibrates and makes sound via external signal)
→ Full electrode - Self-drive type (when a certain voltage is applied, it vibrates and makes a sound)
→ Divided electrode (with feedback electrode)
Piezoelectric Sounder Size vs. Sound Pressure Comparison
Click the product model number in the table below to open the product details page for each product number.
