Description
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
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Type: Passive Piezoelectric Buzzer Element
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Diameter: 40mm
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Cable Length: Approx. 15–20cm
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Material: Brass with ceramic piezo film
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Resonant Frequency: ~3.5kHz
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Operating Voltage: 1V – 30V (recommended: 3V–12V)
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Sound Output: Up to 90 dB @ 12V (depends on drive signal)
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Polarity: Red = Positive (+), Black = Negative (–)
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Mounting: Surface mount or adhesive (not included)
Package Includes
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1 × 40mm Piezoelectric Element Buzzer with Cable
Applications
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Sound alert and alarm systems
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Arduino tone and audio output projects
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Vibration and knock sensor circuits
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DIY electronics and educational kits
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Frequency and resonance experiments
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Embedded system audio signaling
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