Piezo Sensor Element 20 mm

Overview

Discover the Piezo Sensor Element 20 mm, a versatile and compact component that converts mechanical stress into electrical voltage. This 20mm piezoelectric disc is perfect for detecting vibrations, knocks, and sound, or even for generating audio tones. Whether you're building a security system, a musical instrument, or a touch-sensitive interface, this sensor is a reliable and cost-effective choice for your projects.

Key Features

• High Sensitivity: Detects subtle vibrations and knocks with precision.
• Wide Frequency Range: Suitable for various applications from sound detection to impact sensing.
• Low Power Consumption: Requires no external power for sensing; generates its own voltage.
• Compact Design: 20mm diameter, ideal for space-constrained projects.
• Easy to Interface: Simple wiring, compatible with microcontrollers like Arduino and Raspberry Pi.

Technical Specifications

• Material: Piezoelectric ceramic (PZT) with silver electrodes
• Diameter: 20mm
• Thickness: 0.42mm (typical)
• Resonant Frequency: 4.6 kHz ±0.5 kHz
• Capacitance: 20nF ±30% (at 1kHz)
• Operating Temperature: -20°C to +70°C
• Lead Wire: 30mm, 28 AWG

Applications & Use Cases

• Vibration Sensing: Detect machinery vibration, door knocks, or structural integrity.
• Sound Detection: Create sound-reactive projects like clap switches or noise monitors.
• Musical Instruments: Build electronic drums, pianos, or touch-sensitive instruments.
• Security Systems: Use as a break-in sensor or impact detector.
• Educational Projects: Perfect for STEM learning and physics experiments.

What's Included

• 1x Piezo Sensor Element 20mm

Compatibility

• Works with Arduino, Raspberry Pi, ESP32, and other microcontrollers.
• Pairs well with analog input pins for voltage reading.
• Can be used with voltage comparators or operational amplifiers for signal conditioning.

MOKWN Recommendation

For optimal results, pair this piezo sensor with a high-value resistor (1MΩ) to prevent signal decay. It's an excellent choice for hobbyists, students, and professionals looking to add sensing capabilities to their projects. Available now at MOKWN Egypt with fast delivery across the country.