20mm Piezoelectric Ceramic Buzzer | 12V Piezo Sounder Brass Plate

The 20mm 12V Piezoelectric Ceramic Buzzer is a compact and high-output piezo sounder designed for audio indication, alarms, timing circuits, and general-purpose alert systems. Built with a brass resonant plate and ceramic piezo element, this buzzer delivers a loud ≥100 dB sound output while operating across a wide 3–24V DC input range.

This piezoelectric sounder does not include a built-in oscillation circuit, making it ideal for applications requiring external control tones such as melody generation, beeping alerts, multi-tone signals, and custom waveform driving. Suitable for medical devices, test equipment, automotive systems, consumer electronics, safety systems, and embedded projects.

Features / Specifications

• Plate Material: Brass

• Rated Voltage: 12V

• Operating Voltage Range: 3–24V DC

• Rated Current: ≤12mA

• Sound Output (10cm): ≥100 dB

• Plate Diameter: 20mm

• Element Diameter: 14mm

• Plate Thickness: 0.42mm

• Resonant Frequency: 6.3 kHz ± 0.6 kHz

• High-output piezo sounder for alerts and audio signaling

• Suitable for medical, consumer, automotive, instrumentation, and safety electronics

Package Includes:
1 x 20mm 12V Piezoelectric Ceramic Piezo Buzzer

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