3V Electric Buzzer

Create circuits or test batteries and solar cells with this buzzer. Includes leads.
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This buzzer is an essential part to any tinkerer's toolkit. The 3.0V Electric Buzzer is a versatile addition to any electronics project.

Create your own circuits or test batteries and solar cells with this buzzer. Connect it to a battery and a key switch to make your own Morse code circuit. Includes attached leads, one red and one black, 10mm. Buzzer housing includes two screw holes for mounting.

Age: 8+
What You Get
1 x 3.0V Electric Buzzer with attached leads for connection to circuits or power sources. Power source not included. Buzzer is approximately 25x13x13mm in size. Input 3V at 15mH. Output: 70dB Unit measures 14mm in height, base 33 x 15mm. Sold individually.
How Does it Work?
Buzzers use electrical current to complete a circuit. A coil of wire forms part of the circuit and when current is running through it, a magnetic field is generated. This attracts an adjacent metal plate that snaps onto the coil. However, when the coil and the plate are connected, the circuit is broken and current no longer runs through the coil. This removes the magnetic field and the plate is released. The circuit is then complete again and the current begins to run through the coil, and the plate is attracted once more. This rapid and repeated attraction and release creates the 'buzzing' sound.
  • Circuits
  • Current
WARNING: CHOKING HAZARD Small Parts. Not for children under 3 years.
More Information
Length (cm) 4
Width (cm) 3
Height (cm) 3
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