HOW TO CHOOSE A BUZZERS?


Piezo Buzzer vs. Magnetic Buzzers

Magnetic Buzzer Structure

Piezo Trasducer & Piezo Buzzer Structure

Indicators vs. Transducers

Micro SMD Transducer

 

Buzzer's Usage

Buzzers are typically used for identification and alarm purposes across many major industries. Industries Served
  • Safety and Security
  • Automotive Electronics
  • Office Automation
  • Medical Equipment
  • Industrial
  • Consumer Electronics

 

Piezo Buzzer vs. Magnetic Buzzers

Piezo Buzzer Characteristics

  • Wide operating voltage: 3~250V
  • Lower current consumption: less than 30mA
  • Higher rated frequency
  • Larger footprint
  • Higher sound pressure level
  • Piezo Buzzer Piezo Buzzer

Magnetic Buzzer Characteristics

  • Narrow operating voltage: 1~16V
  • Higher current consumption: 30~100mA
  • Lower rated frequency
  • Smaller footprint
  • Lower sound pressure level
  • Magnetic Buzzer Magnetic Buzzer

 

 

 

Magnetic Buzzer Structure

 

This illustration highlights the structure of a typical magnetic buzzer. Like piezo technology, magnetic buzzers are available in transducer and indicator configurations. In a magnetic buzzer, the transistor acts as the driving circuit. Indicators include the transistor, creating a tone when a dc voltage is applied. Transducers lack this transistor, requiring a square wave signal to operate properly.

Magnetic Buzzer Structure

 

No.
Name of Parts
1
Casing
2
Vibrating Weight
3
Cavity
4
Vibrating Disk
5
Magnet
6
Pole
7
Coil
8
Yoke Plate
9
PCB
10
Transistor
11
Epoxy
12
Pin

 

When an oscillating signal is moved through the coil, it produces a fluctuating magnetic field which vibrates the disk at a frequency equal to that of the drive signal.

 

 

Piezo Buzzer Structure

 

Piezo Buzzer Structure

There are two types of piezo buzzers - transducers and indicators. Transducers consist of a casing, a piezoceramic element and a terminal. In order to operate a transducer, the user must send a square wave signal to the buzzer. Indicators consist of a casing, a piezoceramic element, a circuit board and a terminal. In order to operate an indicator, the user must send the buzzer a specified DC voltage.

Piezo Audio TransducerPiezo Audio Transducer

 

Piezo Audio Buzzer Piezo Audio Buzzer


 

Audio Buzzer:

Button Piezo Buzzer

Button Magnetic Buzzer

Button Piezo Transducer

Button Magnetic Transducer

Button SMD Buzzer

Pest repeller :

Button Mole Repeller

Button Snake Repeller

Button Mosquito Killer Lamp

Button Ultrasonic Insect Repeller

 


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Contact US:

 

Even Xu

It' nice to meet you .Can I help you?

E-Mail:sales@piezo-indicator.com

 


kaili-buzzerKaien Chao

It' nice to meet you .Can I help you?

E-mail:chaokaien@163.com

 

 

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