Piezo Element (Connected Wire) 35mm

Piezo Element (Connected Wire) – 35 mm

The 35 mm Piezo Element is a compact electromechanical component that converts mechanical vibrations, pressure, or sound into electrical signals, and vice versa. It is widely used in sensing, sound generation, and vibration detection applications due to its high sensitivity, fast response, and simple structure.

Working Principle

The piezo element operates on the piezoelectric effect. When mechanical force, vibration, or pressure is applied to the ceramic disc, it generates an electrical voltage across its terminals. Conversely, when an electrical signal is applied, the disc vibrates and produces sound.

The brass disc acts as one electrode, while the white ceramic layer forms the piezoelectric material. The attached red and black wires allow easy connection to electronic circuits.

Key Features

• Diameter: 35 mm

• High sensitivity to vibration and impact

• Fast response time

• Lightweight and compact design

• Pre-connected wires for easy use

• No external power required for sensing

Electrical Characteristics

• Type: Piezoelectric transducer

• Operating Voltage (Sound mode): 3 V – 20 V (typical)

• Generated Voltage (Sensor mode): Up to tens of volts (momentary)

• Capacitance: ~20 nF – 30 nF

• Polarity: Red (+), Black (–)

Applications

• Buzzer and sound generation circuits

• Knock and vibration sensors

• Impact and shock detection

• Touch-sensitive switches

• Musical instruments and DIY audio projects

• Arduino, Raspberry Pi, ESP32 projects

• Educational and laboratory experiments

Advantages

• Simple structure and low cost

• High sensitivity and reliability

• Easy interfacing with microcontrollers

• Dual functionality: sensor and sounder

• Long operational life

Conclusion

The 35 mm Piezo Element with Connected Wires is a versatile and essential component for sensing and audio applications. Its ability to detect vibrations and generate sound makes it ideal for automation, IoT, robotics, and educational projects, offering excellent performance with minimal complexity.