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Here's a detailed and professional product description for a 35mm Piezo Sensor:

Piezoelectric Sensor – 35mm Disc Type

Description:

The 35mm Piezo Sensor is a high-sensitivity, disc-shaped piezoelectric transducer that converts mechanical vibrations, pressure, or impact into an electrical signal. It is ideal for use in a wide variety of applications including touch-sensitive devices, vibration detection, musical instruments, alarm systems, and knock sensors.

Specifications:

• Diameter: 35mm

• Thickness: ~0.4mm (ceramic disc) / ~0.6mm (with metal backing)

• Material: Brass metal base with piezoelectric ceramic element

• Operating Voltage: Typically 3V–30V (depending on application)

• Output Signal: Analog voltage (AC)

• Lead Wires: Soldered or can be added to contact pads

• Mounting: Can be glued or embedded into surfaces

Features:

• Wide frequency response and high sensitivity

• No external power required to generate signal

• Compact, lightweight, and durable design

• Operates in both active (signal generation) and passive (vibration detection) modes

Applications:

• Vibration or knock sensors

• Sound and music detection

• Electronic drums and MIDI instruments

• Alarm and trigger systems

• Energy harvesting in low-power systems

• DIY electronics and Arduino/ESP32/Raspberry Pi projects

Usage Tips:

• Mount securely to the surface to ensure good mechanical contact.

• Use a high-impedance amplifier circuit to capture weak signals.

• Protect the sensor from moisture and excessive mechanical stress.

Let me know if you'd like a wiring guide or sample Arduino code to use this sensor!