Raspberry Pi Active Buzzer - 3.3V / 5V

Product detailed description

Active buzzer with a built-in tone generator available in 3.3 V or 5 V power versions. Simply apply DC voltage to produce a tone of approximately 2.3 kHz – no PWM signal generation is required, allowing you to easily control it with a single digital pin of an Arduino, ESP32, or Raspberry Pi. With pin spacing compatible with breadboards, it is ideal for acoustic signalling in alarms, buttons, timers, and status notifications.

Specifications:

• Type: active buzzer (with built-in oscillator)
• Tone frequency: 2 300 ± 500 Hz
• Current consumption: max. 25 mA
• Control: DC voltage, on / off
• Dimensions: Ø 12 × 9.5 mm
• Variants:
  • 3.3V: supply voltage 3.3 V
  • 5V: supply voltage 5 V

Important wiring notice:

• The buzzer is polarised – connect the longer lead (marked +) to the positive voltage.
• Select the variant based on the supply voltage. The 5V version will sound significantly quieter at 3.3 V.
• The active buzzer has a fixed tone – use a passive buzzer for playing melodies.

Package contents:

• 1× active buzzer (according to the selected variant)

Note:

• This product is not a standalone functional unit and may require professional installation.
• Product images are for illustrative purposes only and may sometimes differ from the actual appearance of the item. However, this does not change their basic properties.