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Buzzer Datasheet: A Detailed Explanation

A buzzer is a practical sound feature used in various electronic devices and applications. It is a small 2-pin component that can fit on a breadboard. This is one of the reasons why it finds use in many electronic applications. This article will shed more light on the buzzer datasheet. You will learn about its pin configuration systems, how to use a buzzer, its features, and applications.

Buzzer Pin Configuration

Diagram: A Buzzer

Diagram: A Buzzer

Source: Created using Krita

The buzzer had two pins. First, one pin is positive and has the positive sign (+). A 6V DC voltage powers pin 1. 

The second pin is the negative pin identified by the (-) symbol. In addition, this pin has a short terminal lead. It is usually connected to the ground terminal of the electronic circuit. 

The Features of Buzzer

First, a buzzer usually has a rated DC voltage of 6V. However, its operating DC voltage ranges between 4 to 8V. In addition, it has a rated current of less than 30mA. 

Also, note that the buzzer has a resonant frequency of about 2300 Hz to 3300 Hz. 

Other specifications of a buzzer include:

  • Operating temperatures of between -20°C to 60°C
  • A sound pressure level of 85dBA

How to use a Buzzer

A perf board

Description: A perf board

Source: Google creative commons

Buzzers exist in two types. The first type produces a continuous beep sound. Also, you can refer to this type of buzzer as an active buzzer. Next, the second type of buzzer is the ready-made buzzer. 

The readymade buzzer is different from the active buzzer, such that it is much bulkier. Also, this type of buzzer works with an internal oscillating circuit, and it produces a beep. 

For this buzzer, the power range should be between 4V and 9V. Therefore, you should use a 9V battery and regulate the supply between +5V and +6V.

Generally, the circuit which has the buzzer usually has an 0N/OF switch which you can use as the control.

The most commonly used buzzer is the one that produces a continuous sound. This is because it is easy to customize to fit several applications compared to the readymade buzzer.

Buzzer Alternatives

The equivalents for passive buzzers include:

  • Piezo Electric buzzer
  • Speaker
  • Active Passive Buzzers with Module
Piezoelectric buzzer

Description: Piezoelectric buzzer

Source: Google Creative Commons


Hand pushing a buzzer

Description: Hand pushing a buzzer

You can use buzzers in a variety of circuit applications. These include:

  • Alarm circuits
  • Communication equipment
  • Electronics in Automobile
  • In portable equipment, due to the compact size of the buzzer
  • user input devices, e.g., mouse
A computer mouse

Description: A computer mouse


We tell you all about buzzers. If you have any questions, you can contact us on our page.

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Hommer Zhao
Hi, I am Hommer Zhao, the founder of WellPCB. So far, we have more than 4,000 customers worldwide. If you have any questions, you can feel free to contact me! Your happiness as a customer is my priority!