22 * 7mm passive piezo buzzer DC 1 ~ 20V , minimum 85dB at 10cm

Description:

A buzzer is an audio signaling device, which may be mechanical , electromechanical , or piezoelectric (piezo for short). Typical uses of buzzers include alarm devices , timers, and confirmation of user input such as a mouse click or keystroke.

Piezo buzzer is an electronic device commonly used to produce sound. Light weight, simple construction and low price make it usable in various applications like car/truck reversing indicator, computers, call bells etc. Piezo buzzer is based on the inverse principle of piezo electricity discovered in 1880 by Jacques and Pierre Curie. It is the phenomena of generating electricity when mechanical pressure is applied to certain materials and the vice versa is also true. Such materials are called piezo electric materials. Piezo electric materials are either naturally available or manmade. Piezoceramic is class of manmade material, which poses piezo electric effect and is widely used to make disc, the heart of piezo buzzer. When subjected to an alternating electric field they stretch or compress, in accordance with the frequency of the signal thereby producing sound.

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.

Our buzzers are widely used to inquartzcrystal clock, air-conditioner instrument, telephone, BP, copycat, alarm, instrument and apparatus, UPS power supply, motorcycle steering gear, electronic toy, computer terminal, electronic watch and etc.

Dimension: (mm)


Frequency response:


Reliability test:

ANYO is the leading supplier of electronic components. We were established in 2012, based in Ningbo (Close to ShangHai). Before establishment, we were lawful chief representative of EMDAS ELEKTRONIK in Turkey. We always get the qualified products with fast, easy ordering, short delivery time, and free technical help.

We have our own carbon potentiometer factory, which is professional and has the ability to develop different kinds of potentiometers. We have our own trade mark and letter of patent for the structure.

We value every customer visit, which is a platform to show our profession and friendly. Because our corporate philosophy is to be a friend with you, not just business.

We attend professional electronic components exhibitions, which is most important to know the market trend, and gain the ability to help our clients expand their market and serve them better.

ANYO always pursuit of quality, not quantity. To ensure the quality, we only cooperate with qualified suppliers. Besides, our QC staff will control all shipments before loading.