{"product_id":"20pcs-passive-electromagnetic-buzzer-2khz-3v-5v-12v-16-ohm","title":"20PCS Passive Electromagnetic Buzzer 2KHz 3V 5V 12V 16Ω","description":"\u003ch2\u003eNioCen 20PCS Passive Electromagnetic Buzzer – 2KHz, 3V\/5V\/12V, 16Ω Impedance\u003c\/h2\u003e\n\u003cp\u003eUpgrade your electronics projects with this pack of \u003cstrong\u003e20 passive electromagnetic buzzers\u003c\/strong\u003e from NioCen. Designed for broad compatibility, these buzzers operate at \u003cstrong\u003e2KHz\u003c\/strong\u003e with a general impedance of \u003cstrong\u003e16 ohms\u003c\/strong\u003e and support multiple voltage inputs — \u003cstrong\u003e3V, 5V, and 12V\u003c\/strong\u003e — making them ideal for microcontroller projects, Arduino builds, alarm circuits, and communication applications.\u003c\/p\u003e\n\n\u003cp\u003eWhether you're a hobbyist, engineer, or educator, having 20 units on hand ensures you always have a reliable buzzer ready for prototyping, testing, or production runs.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePassive Electromagnetic Design:\u003c\/strong\u003e Requires an external signal (PWM or AC) to produce sound — giving you full control over tone and frequency\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Frequency:\u003c\/strong\u003e 2KHz for a clear, audible alert tone\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Voltage Range:\u003c\/strong\u003e Compatible with 3V, 5V, and 12V power supplies\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e16Ω Impedance:\u003c\/strong\u003e General-purpose impedance suitable for a wide range of circuit applications\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBulk Pack of 20:\u003c\/strong\u003e Great value for prototyping, workshops, classrooms, and production use\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand new components\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Concern Chemicals:\u003c\/strong\u003e None\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIdeal Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eArduino and Raspberry Pi projects\u003c\/li\u003e\n  \u003cli\u003eAlarm and alert systems\u003c\/li\u003e\n  \u003cli\u003eCommunication devices\u003c\/li\u003e\n  \u003cli\u003eElectronic toys and educational kits\u003c\/li\u003e\n  \u003cli\u003eDIY electronics and circuit prototyping\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\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\/personal-protective-equipment\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on personal protective equipment\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is the difference between a passive and active buzzer?\u003c\/h4\u003e\n\u003cp\u003eA: A passive electromagnetic buzzer requires an external oscillating signal (such as a PWM signal from a microcontroller) to produce sound, allowing you to control the frequency and tone. An active buzzer has a built-in oscillator and produces a fixed tone when powered. These NioCen buzzers are passive, giving you greater flexibility in your circuit design.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Are these buzzers compatible with Arduino and Raspberry Pi?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! Because they support 3V and 5V operation, these passive electromagnetic buzzers are fully compatible with Arduino, Raspberry Pi, and most common microcontroller development boards. Simply drive them with a PWM signal from your output pin.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Why buy a pack of 20 passive buzzers?\u003c\/h4\u003e\n\u003cp\u003eA: Having a bulk pack of 20 ensures you have spares for prototyping, can outfit multiple projects simultaneously, and reduces the need for frequent reordering. This is especially useful for educators, workshop facilitators, and electronics enthusiasts working on multiple builds at once.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the difference between a passive and active buzzer?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A passive electromagnetic buzzer requires an external oscillating signal (such as a PWM signal from a microcontroller) to produce sound, allowing you to control the frequency and tone. An active buzzer has a built-in oscillator and produces a fixed tone when powered. These NioCen buzzers are passive, giving you greater flexibility in your circuit design.\"}}, {\"@type\": \"Question\", \"name\": \"Are these buzzers compatible with Arduino and Raspberry Pi?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! Because they support 3V and 5V operation, these passive electromagnetic buzzers are fully compatible with Arduino, Raspberry Pi, and most common microcontroller development boards. Simply drive them with a PWM signal from your output pin.\"}}, {\"@type\": \"Question\", \"name\": \"Why buy a pack of 20 passive buzzers?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Having a bulk pack of 20 ensures you have spares for prototyping, can outfit multiple projects simultaneously, and reduces the need for frequent reordering. This is especially useful for educators, workshop facilitators, and electronics enthusiasts working on multiple builds at once.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"20PCS Passive Electromagnetic Buzzer 2KHz 3V 5V 12V 16Ω\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/products\/20pcs-passive-electromagnetic-buzzer-2khz-3v-5v-12v-16-ohm\"}]}\u003c\/script\u003e","brand":"Axl","offers":[{"title":"Default Title","offer_id":44168300724311,"sku":"\u003cnone\u003e","price":24.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/6008\/7383\/files\/Sd48ca37cb22e4ff581c1274cbdd2b95bp.webp?v=1786770352","url":"https:\/\/axlcustomersupport.com\/products\/20pcs-passive-electromagnetic-buzzer-2khz-3v-5v-12v-16-ohm","provider":"Axl","version":"1.0","type":"link"}