10pcs Piezoelectric Ceramic Disc Sensors 12–50mm | Buzzer
10pcs Piezoelectric Ceramic Disc Sensors 12–50mm | Buzzer
10-Pack Piezoelectric Ceramic Wafer Disc Sensors
Get a versatile set of 10 piezoelectric ceramic wafer disc sensors covering a wide range of diameters — 12, 15, 18, 20, 23, 25, 27, 30, 31, 35, 41, and 50mm — perfect for electronics hobbyists, engineers, and makers. These precision-made piezo discs convert mechanical vibration into electrical signals (and vice versa), making them essential components for buzzers, loudspeakers, alarms, musical greeting cards, DIY electronics projects, and sensing applications.
Made in Mainland China.
Key Features
- Multi-Size Selection: Available in 12 standard diameters (12mm–50mm) to suit a wide range of project requirements
- Pack of 10: Stock up and have spares ready for prototyping and production
- Pre-Wired Leads: Comes with wire leads attached for easy connection to your circuit
- Dual Functionality: Acts as both a sound emitter (buzzer/speaker) and a vibration/knock sensor
- Broad Compatibility: Suitable for DIY electronics, Arduino/Raspberry Pi projects, alarm systems, musical instruments, and more
- High-Quality Ceramic Element: Delivers consistent frequency response and reliable signal output
- No High-Concern Chemicals: Clean construction, safe for handling and general use
Specifications
- Brand: NioCen
- Quantity: 10 pieces per pack
- Available Diameters: 12 / 15 / 18 / 20 / 23 / 25 / 27 / 30 / 31 / 35 / 41 / 50mm
- Type: Piezoelectric Ceramic Disc / Wafer Sensor
- Leads: Pre-soldered wire leads included
- Condition: Brand New
- Origin: Mainland China
Common Applications
- Electronic buzzers and alarms
- DIY loudspeaker and audio projects
- Vibration and knock detection sensors
- Arduino & Raspberry Pi sound modules
- Musical greeting cards and toys
- Ultrasonic distance measurement
- Metronomes and timing circuits
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Frequently Asked Questions
Q: What diameters are included in the 10-piece piezoelectric ceramic disc set?
A: The pack covers a broad range of standard sizes: 12mm, 15mm, 18mm, 20mm, 23mm, 25mm, 27mm, 30mm, 31mm, 35mm, 41mm, and 50mm. You can select your preferred diameter when ordering, making this set ideal for a variety of electronics projects requiring different piezo disc sizes.
Q: Can these piezoelectric ceramic discs be used as both a sensor and a sound emitter?
A: Yes! Piezoelectric ceramic discs are inherently bidirectional. They can convert an electrical signal into sound or vibration (used in buzzers and loudspeakers), and they can also detect mechanical vibration or pressure and convert it into an electrical signal (used as knock or vibration sensors in Arduino and similar projects).
Q: Do the piezo discs come with wires pre-attached?
A: Yes, each piezoelectric ceramic wafer disc comes with pre-soldered wire leads, allowing you to connect them directly to your circuit board or breadboard without any extra soldering required — perfect for quick prototyping.
Q: Are these discs compatible with Arduino or Raspberry Pi projects?
A: Absolutely. These piezo ceramic discs are widely used in Arduino, Raspberry Pi, and other microcontroller-based projects for generating tones, detecting taps/vibrations, or building simple speaker circuits. They work seamlessly with standard analog and digital GPIO pins.