Good performance, general purpose piezo buzzer used commonly in alerting / alarming circuits. This is a PCB mountable buzzer can be easily soldered to PCB boad. Most commonly used in at 12v. Long life, stable performance, High Quality with SOT plastic package.
The piezo buzzer produces sound based on reverse of the piezoelectric effect. The generation of pressure variation or strain by the application of electric potential across a piezoelectric material is the underlying principle. These buzzers can be used alert a user of an event corresponding to a switching action, counter signal or sensor input. They are also used in alarm circuits.
The buzzer produces a same noisy sound irrespective of the voltage variation applied to it. It consists of piezo crystals between two conductors. When a potential is applied across these crystals, they push on one conductor and pull on the other. This, push and pull action, results in a sound wave. Most buzzers produce sound in the range of 2 to 4 kHz.
- Voltage : 12VDC
- Maximum current : 30mA/12VDC
- Decibel : > 85db/10cm
- Resonant frequency : 2500Hz (+/- 300 HZ)
- Operating Temperature : -20 to 70 C