3pcs: Piezo Electric Plate (piezo buzzer) - 27mm

27mm Piezo Electric Plate Buzzer - 3 Pieces

This product consists of 27mm Piezo Electric Plates, supplied in a 3-piece pack. These ceramic buzzers convert electrical energy into sound. They also detect mechanical vibrations. The 27mm diameter facilitates integration into space-constrained applications. These components are suitable for electronics projects, including audio alerts and vibration sensing. The pack provides multiple units for development or production requirements.

Specifications:

• Diameter: 27mm
• Type: Piezoelectric Ceramic Buzzer Plate
• Resonance Frequency: 4.6 KHz +/- 0.5 KHz
• Resonance Impedance: 200 Ohms
• Capacitance: 20nF +/- 30% at 1 KHz
• Operating Temperature: -20°C to +70°C
• Storage Temperature: -30°C to +80°C

Key features and benefits:

• 27mm diameter
• Piezoelectric ceramic construction
• Converts electrical signals to sound
• Detects mechanical vibrations
• Resonance frequency: 4.6 KHz
• Resonance impedance: 200 Ohms
• Operating temperature range: -20°C to +70°C
• Supplied as a 3-piece package

Applications:

• Audio alerts and alarms in electronic devices
• Sound generation and mini speakers
• Vibration sensing for impact detection
• DIY electronics projects and educational kits
• Robotics and automation feedback systems
• Proximity sensors and touch interfaces

Frequently Asked Questions:

Q: What is the recommended operating voltage for these piezo plates?
A: Piezoelectric plates typically operate by applying an AC signal. The maximum voltage depends on the drive circuit and desired sound output, often within 5-30V peak-to-peak.

Q: Do these piezo plates have a specific polarity for connection?
A: Piezoelectric plates are non-polar components when used for sound generation with an AC signal. For sensing applications, the generated voltage will have a polarity relative to the applied mechanical force.

Q: Can this 27mm piezo plate be used as a direct replacement for a 20mm or 35mm unit?
A: Physical dimensions and resonance characteristics differ between sizes. A 27mm plate may not be a direct functional or physical replacement for other diameters without circuit adjustments.

Q: How many piezo electric plates are included in one package?
A: Each package contains 3 individual 27mm Piezo Electric Plates.

Q: What is the typical mounting method for these piezo plates?
A: These plates are typically mounted by adhering their non-active side to a surface or by securing their leads within a circuit. Avoid applying pressure directly to the ceramic element.

Package Includes:

*Image shown is a representation only.

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