Piezo Buzzer and Vibration Sensor

Description

Piezo Buzzer and Vibration Sensor The Piezo Vibration Sensor is a compact piezoelectric sensor designed to detect mechanical vibrations and knocks. When subjected to physical stress, such as tapping or knocking, the piezoelectric material generates a voltage signal proportional to the force applied. This makes it ideal for applications requiring impact detection, vibration monitoring, or as a simple input device in interactive projects. Additionally, when an AC voltage is applied, the element can function as a buzzer, producing audible tones. Its dual functionality allows for both sensing and sound generation, making it a versatile component in electronic designs. Features : Detects mechanical vibrations and knocks through the piezoelectric effect. Generates voltage signals proportional to applied force. Can function as a buzzer when driven with an AC voltage. Compact and lightweight design for easy integration. Suitable for both sensing and sound-generating applications. Pre-soldered leads. Specifications: Specification Details Diameters 12/15/18/20/27/35/50 mm Thickness Approximately 0.45mm Resonant Frequency 4.2kHz to 4.6kHz Operating Voltage (as buzzer) Typically 3V–24V Maximum Input Voltage Up to 30V Operating Temperature -20°C to +70°C Lead Wire Length Approximately 50mm Diameter Resonant Frequency Capacitance (@1kHz) Impedance (MAX.) Typical Applications 12mm 9.0±1.0kHz 8±30%nF 1kΩ Compact devices, touch-sensitive interfaces 15mm 6.0±1.0kHz 10±30%nF 800Ω Small alarms, portable electronics 18mm 4.3±0.5kHz 25±30%nF 300Ω Medium vibration sensors, compact buzzers 20mm 6.3±0.6kHz 10±30%nF 1kΩ General-purpose vibration sensing, small buzzers 27mm 4.6±0.5kHz 20±30%nF 300Ω Knock sensors, medium-sized buzzers 35mm 2.8±0.5kHz 30±30%nF 200Ω Drum triggers, large-area vibration detection 50mm 2.8±0.5kHz 35±30%nF 300Ω Industrial alarms, high-sensitivity vibration monitoring Package Contents: 1x Piezo Buzzer and Vibration Sensor (with wires soldered) Documents: Piezoelectric Sound Components Datasheet Example Arduino project Piezo Buzzer Element 50mm Piezo Buzzer Element 18mm Certification NOTE: in the datasheet, look for the External Drive Type in 7BB series (page 7).

From the supplier's page.