{"product_id":"10pcs-20mm-piezo-ceramic-disc-elements-sensor-buzzer-wire","title":"10Pcs 20mm Piezo Ceramic Disc Elements Sensor Buzzer \u0026 Wire","description":"\u003ch2\u003e10-Pack 20mm Piezo Ceramic Disc Elements with Wire — Versatile Sensor \u0026amp; Buzzer Discs\u003c\/h2\u003e\n\u003cp\u003eGet everything you need for your next electronics project with this convenient 10-piece set of \u003cstrong\u003e20mm Piezo Ceramic Elements\u003c\/strong\u003e. Each disc features a copper base and pre-attached PVC-insulated wire, making them ready to integrate into buzzers, pressure sensors, drum triggers, DIY speakers, and more. Their wide tonal response makes them ideal for both speech and music applications.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 10 piezo ceramic discs per package\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e 20mm — compact and easy to mount\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Copper base with PVC-insulated lead wires\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Tonal Response:\u003c\/strong\u003e Suitable for a broad range of audio frequencies\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMulti-Purpose:\u003c\/strong\u003e Compatible with buzzer circuits, pressure sensors, drum trigger pads, DIY speaker builds, and electronic hobby projects\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePre-Wired:\u003c\/strong\u003e Convenient lead wires attached for quick and easy connections\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eMade in Mainland China\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eElectronic buzzers and alarms\u003c\/li\u003e\n  \u003cli\u003eVibration and pressure sensing\u003c\/li\u003e\n  \u003cli\u003eDIY electronic drum trigger pads\u003c\/li\u003e\n  \u003cli\u003eSpeech and music reproduction circuits\u003c\/li\u003e\n  \u003cli\u003eArduino, Raspberry Pi, and other microcontroller projects\u003c\/li\u003e\n  \u003cli\u003eEducational electronics experiments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDiameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCopper, PVC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWire\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIncluded (PVC insulated)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ePlease allow 0–3mm measurement tolerance due to manual sizing.\u003c\/li\u003e\n  \u003cli\u003eActual color may vary slightly from product images due to monitor display differences.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/hand-power-tools\" target=\"_blank\" rel=\"noopener\"\u003eOSHA guidance on hand and power tools\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What are piezo ceramic disc elements used for in electronics projects?\u003c\/h4\u003e\n\u003cp\u003eA: Piezo ceramic disc elements are versatile components used in a wide range of electronics applications, including buzzers, alarms, vibration and pressure sensors, DIY drum trigger pads, and small speaker or audio circuits. Their ability to convert mechanical vibration into electrical signals (and vice versa) makes them a staple in hobbyist and professional electronics projects alike, including Arduino and microcontroller builds.\u003c\/p\u003e\n\u003ch4\u003eQ: Are the 20mm piezo discs compatible with Arduino or Raspberry Pi projects?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! These 20mm piezo ceramic discs are widely used with Arduino, Raspberry Pi, and other microcontroller platforms. They can be used as simple tone generators, knock\/vibration detectors, or trigger sensors. The pre-attached wires make connecting them to a breadboard or circuit straightforward without any additional soldering required on the disc itself.\u003c\/p\u003e\n\u003ch4\u003eQ: How many piezo discs come in this package?\u003c\/h4\u003e\n\u003cp\u003eA: Each package includes 10 x 20mm piezo ceramic disc elements, each with pre-attached PVC-insulated lead wires, giving you plenty for multiple projects or replacements.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What are piezo ceramic disc elements used for in electronics projects?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Piezo ceramic disc elements are versatile components used in a wide range of electronics applications, including buzzers, alarms, vibration and pressure sensors, DIY drum trigger pads, and small speaker or audio circuits. 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