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Advantages of Piezoelectric Buzzer

There are many types of buzzers in the industry. Today we are talking about the advantages of piezoelectric buzzers compared with other types of buzzers.

The piezoelectric buzzer is mainly composed of a multi-harmonic oscillator, piezoelectric buzzer, impedance matching device and resonance box, shell, etc. The multi-harmonic oscillator is composed of transistors or integrated circuits. When the power is turned on (1.5~15V DC working voltage), the multi-harmonic oscillator starts to oscillate and outputs an audio signal of 1.5~2.5kHZ, and the impedance matcher pushes the piezoelectric buzzer to sound.

The piezoelectric buzzer has the following advantages compared with other buzzers.

Excellent Electrical Endurance
Since there is no moving contact part, the piezoelectric buzzer has a long life and high reliability and can be used continuously for more than 10,000 hours, which is a semi-permanent device.

Zero Interference
Piezoelectric buzzer does not produce flying arc or RF noise, no interference to other circuits.

Stability
Piezoelectric buzzer does not cause large vibration due to looseness.

High functionality
There is electronic circuit control in the piezoelectric buzzer. It can issue a variety of pleasant sounds and analog sounds, intermittent sounds, pure tones, not easy to be covered by noise.

Low Power Consumption
There is voltage excitation in the piezoelectric buzzer. Thus the consumption of current is small, generally under 20mA, will not exceed 100mA.

Flexible Profile
There is a variety of profiles of the piezoelectric buzzers. Volume can reach 70dB / 20cm, while the component thickness is only 1mm or less.

Good Adaptability
The piezoelectric buzzer can work in a wide working temperature range.

Simple Application
The piezoelectric buzzer is easy to install, and no electromagnetic coil and moving coil, do not have to worry about insulation deterioration and no possibility of leakage.