Sort By:  
3-24V Piezo Electronic Tone Buzzer Alarm 95DB Continuous Sound (2B3 buzzer 3-24VDC)
Color: Black
Buzzer Type: Piezoelectric
Sound Pressure Level 85 dB
Rate Voltage: 12V DC
Operating Voltage: 3 - 24V
Max Current Rating 11mA
Frequency 3900±500Hz
Drive Method: Drive Circuit Built in
Mounting Holes
Package Includes:
1 X 85DB Piezoelectric Buzzer Alarm

R24.90  Inc VAT
Piezo Transducer - Mini 5V Buzzer (4000Hz) (2B3 buzzer pcb 5V)

If you want to add beeps, tones or alerts to your Raspberry Pi project, you require a Piezo Buzzer! This mini transducer is small but loud, and can be driven with a 1-20V peak-to-peak square wave. To use, connect one pin to ground (either one) and the other pin to a square wave out from a timer or microcontroller. For the loudest tones, stay around 4 KHz. For extra loudness, you can connect both pins to a microcontroller and swap which pin is high or low ('differential drive') for double the volume.

This one plops perfectly into a breadboard and has short legs, so can also easily be mounted on a PCB! Please Note. This item is externally driven, e.g. requires a microcontroller to produce a tone.

This Mini Piezo Transducer Features:

  • Mini 5V Piezo Transducer
  • PCB & Breadboard Mountable
  • Low Power Consumption
  • Sealed Base
  • Wave Solderable and Washable
Technical Specification
  • Rated Voltage (Vp-p Square Wave) 5Vp-p
  • Operating Voltage 1 to 20Vp-p
  • Rated Current at Rated Voltage 1mA
  • Sound Output at 4000Hz at 10cm, at Rated Voltage ≥80dB
  • Resonant Frequency 4000 ±500Hz
  • Operating Temperature -20 to +70°C
  • Storage Temperature -30 to +80°C
  • External Diameter: 13.8mm
  • External Height: 6.8mm
  • Capacitance: 0.013µF
  • Capacitance Max: 16.9nF
  • Weight: 1g
  • Model No.: ABT-402-RC
R9.99  Inc VAT
DC 12V Compact Siren (2A4 12V Red Siren)
Easy to install and use
12Volt - Red Cable for positive, Black for Negative.
approx 80x80x80mm
Package Includes:
1 x Siren
Great for your alarm project
R190.66  Inc VAT
Per Page      1 - 3 of 3
  • 1