Sound Components (Buzzer)Type of sound components

Basic knowledge of Piezoelectric Sound Components

Type of sound components
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Mechanical type Produces sounds by giving mechanical shock to a sound source. a bicycle bell, a bell , a gong bell
Electronic type Produces sounds by giving electric signal like voltage or current, and vibrating a sound source. classified as below.
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Piezoelectric type Electromagnetic type
Structure
Piezoelectric type
Electromagnetic type
Power consumption Low (voltage drive) High (current drive)
Number of parts Less a lot
Downsizing Easy Difficult
Weight Lightweight Heavy
Sound pressure Average High
Sound quality Average Good

Murata's Sound Components
(Buzzer)