35mm Piezoelectric Sensor / Buzzer / Transducer | Vibration & Knock Sensor

The 35mm Piezoelectric Sensor / Buzzer / Transducer is a versatile device that uses the piezoelectric effect to convert mechanical vibrations into electrical signals—and vice versa. Commonly used as a knock sensor, vibration sensor, or piezo buzzer, this transducer is suitable for a wide range of applications including robotics, security systems, touch detection, and power-generation experiments like footstep energy harvesting.

Its brass metal construction ensures durability and stable performance across a wide operating temperature range. With a resonance frequency of 4.6 kHz and a capacitance of 20nF, this 35mm piezo disc delivers high sensitivity for both sensing and actuation tasks.

Features / Specifications

• Resonance Frequency: 4.6 kHz ± 0.5 kHz

• Resonance Impedance: 200 Ω

• Capacitance: 20nF ± 30% (at 1 kHz)

• Operating Temperature: –20°C to +70°C

• Storage Temperature: –3°C to +80°C

• Material: Brass

• Diameter: 35mm

• Ideal for knock sensors, vibration sensing, piezo buzzers, and power generation projects.

Package Includes:
1 x Piezo Electric Sensor / Buzzer / Transducer – 35mm

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