40mm Piezoelectric Element Buzzer with Cable

The 40mm Piezoelectric Element Buzzer is a high-performance, passive sound component used for generating tones, alarms, or audio signals in various electronic projects. Built with a ceramic piezo element bonded to a brass disc, this buzzer is lightweight, durable, and delivers reliable acoustic response when driven by an external signal.

Equipped with pre-soldered wire leads, it is easy to connect to microcontrollers such as Arduino, Raspberry Pi, or any circuit that outputs a PWM or AC signal. Ideal for sound generation, vibration sensing, and educational use.

Technical Specifications

• Type: Passive Piezoelectric Buzzer Element

• Diameter: 40mm

• Cable Length: Approx. 15–20cm

• Material: Brass with ceramic piezo film

• Resonant Frequency: ~3.5kHz

• Operating Voltage: 1V – 30V (recommended: 3V–12V)

• Sound Output: Up to 90 dB @ 12V (depends on drive signal)

• Polarity: Red = Positive (+), Black = Negative (–)

• Mounting: Surface mount or adhesive (not included)

Package Includes

• 1 × 40mm Piezoelectric Element Buzzer with Cable

Applications

• Sound alert and alarm systems

• Arduino tone and audio output projects

• Vibration and knock sensor circuits

• DIY electronics and educational kits

• Frequency and resonance experiments

• Embedded system audio signaling