Piezo Ceramic Transducer 20mm 4,5kHz -20÷60°C

20mm Ceramic Piezo Transducer designed for vibration sensing or low-frequency sound generation. This passive component has no internal generator and requires an external circuit (amplifier, comparator) to be used effectively.

Specifications

• Diameter: 20 mm
• Thickness: 0.3 mm
• Resonant Frequency: 4.5 kHz
• Capacitance: 15 nF
• Max Voltage: 30 V
• Operating Temperature: -20 to +60 °C

This type of sensor is commonly used for shock detection, vibration monitoring, or simple speaker applications. For signal reading, it is recommended to use a high pull-up resistor (1 MΩ) and an operational amplifier to match impedance.