{"product_id":"10pcs-piezoelectric-ceramic-disc-sensor-12-50mm-buzzer-loudspeaker","title":"10pcs Piezoelectric Ceramic Disc Sensors 12–50mm | Buzzer","description":"\u003ch2\u003e10-Pack Piezoelectric Ceramic Wafer Disc Sensors\u003c\/h2\u003e\n\u003cp\u003eGet a versatile set of \u003cstrong\u003e10 piezoelectric ceramic wafer disc sensors\u003c\/strong\u003e 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.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMulti-Size Selection:\u003c\/strong\u003e Available in 12 standard diameters (12mm–50mm) to suit a wide range of project requirements\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePack of 10:\u003c\/strong\u003e Stock up and have spares ready for prototyping and production\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePre-Wired Leads:\u003c\/strong\u003e Comes with wire leads attached for easy connection to your circuit\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Functionality:\u003c\/strong\u003e Acts as both a sound emitter (buzzer\/speaker) and a vibration\/knock sensor\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBroad Compatibility:\u003c\/strong\u003e Suitable for DIY electronics, Arduino\/Raspberry Pi projects, alarm systems, musical instruments, and more\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Quality Ceramic Element:\u003c\/strong\u003e Delivers consistent frequency response and reliable signal output\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo High-Concern Chemicals:\u003c\/strong\u003e Clean construction, safe for handling and general use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e NioCen\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 10 pieces per pack\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailable Diameters:\u003c\/strong\u003e 12 \/ 15 \/ 18 \/ 20 \/ 23 \/ 25 \/ 27 \/ 30 \/ 31 \/ 35 \/ 41 \/ 50mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Piezoelectric Ceramic Disc \/ Wafer Sensor\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLeads:\u003c\/strong\u003e Pre-soldered wire leads included\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand New\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Mainland China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eElectronic buzzers and alarms\u003c\/li\u003e\n  \u003cli\u003eDIY loudspeaker and audio projects\u003c\/li\u003e\n  \u003cli\u003eVibration and knock detection sensors\u003c\/li\u003e\n  \u003cli\u003eArduino \u0026amp; Raspberry Pi sound modules\u003c\/li\u003e\n  \u003cli\u003eMusical greeting cards and toys\u003c\/li\u003e\n  \u003cli\u003eUltrasonic distance measurement\u003c\/li\u003e\n  \u003cli\u003eMetronomes and timing circuits\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What diameters are included in the 10-piece piezoelectric ceramic disc set?\u003c\/h4\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\u003ch4\u003eQ: Can these piezoelectric ceramic discs be used as both a sensor and a sound emitter?\u003c\/h4\u003e\n\u003cp\u003eA: 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).\u003c\/p\u003e\n\u003ch4\u003eQ: Do the piezo discs come with wires pre-attached?\u003c\/h4\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\u003ch4\u003eQ: Are these discs compatible with Arduino or Raspberry Pi projects?\u003c\/h4\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What diameters are included in the 10-piece piezoelectric ceramic disc set?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"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.\"}}, {\"@type\": \"Question\", \"name\": \"Can these piezoelectric ceramic discs be used as both a sensor and a sound emitter?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! Piezoelectric ceramic discs are inherently bidirectional. 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