{"product_id":"active-buzzer-module-3v-5v-12v-magnetic-continuous-arduino-5pack","title":"Active Buzzer Module 3V\/5V\/12V — Magnetic Continuous Beep, Arduino (5-Pack)","description":"\u003ch2\u003eActive Buzzer Module — 3V \/ 5V \/ 12V, Magnetic Continuous Beep, Arduino (5-Pack)\u003c\/h2\u003e\u003cp\u003eAn \u003cstrong\u003eactive buzzer\u003c\/strong\u003e contains a built-in oscillator circuit that generates a fixed-frequency tone when DC voltage is applied — no PWM or frequency signal required from the MCU. Simply drive the signal pin HIGH from any Arduino GPIO to produce a continuous beep. Available in \u003cstrong\u003e3V, 5V, and 12V\u003c\/strong\u003e operating voltages.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eActive (self-oscillating, built-in driver)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e3V \/ 5V \/ 12V (select variant)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Current\u003c\/td\u003e\n\u003ctd\u003e~30mA @ 5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSound Frequency\u003c\/td\u003e\n\u003ctd\u003e~2300Hz (fixed, internal oscillator)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSound Pressure Level (SPL)\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;85dB @ 10cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl\u003c\/td\u003e\n\u003ctd\u003eDigital HIGH\/LOW (active-HIGH or active-LOW per module)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector\u003c\/td\u003e\n\u003ctd\u003e3-pin header (VCC, GND, I\/O)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Size\u003c\/td\u003e\n\u003ctd\u003e~33 × 13mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e5 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eActive vs Passive Buzzer — Key Difference\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eActive Buzzer (This Product)\u003c\/th\u003e\n\u003cth\u003ePassive Buzzer\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Oscillator\u003c\/td\u003e\n\u003ctd\u003eYes — fixed frequency\u003c\/td\u003e\n\u003ctd\u003eNo — requires PWM input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Signal\u003c\/td\u003e\n\u003ctd\u003eDC HIGH\/LOW\u003c\/td\u003e\n\u003ctd\u003ePWM (tone() function)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTone Variety\u003c\/td\u003e\n\u003ctd\u003eSingle fixed tone\u003c\/td\u003e\n\u003ctd\u003eAny frequency (music, melodies)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eArduino Code\u003c\/td\u003e\n\u003ctd\u003edigitalWrite(pin, HIGH)\u003c\/td\u003e\n\u003ctd\u003etone(pin, frequency)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003ctd\u003eAlarms, notifications, simple beeps\u003c\/td\u003e\n\u003ctd\u003eMusic, melodies, variable tones\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose Active Buzzer Module?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo PWM Required\u003c\/strong\u003e — Simple digitalWrite(HIGH) produces immediate beep; ideal for beginners\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in Driver Transistor\u003c\/strong\u003e — Module includes NPN transistor; drives buzzer directly from 3.3V\/5V GPIO without current concerns\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u0026gt;85dB SPL\u003c\/strong\u003e — Audible alarm in noisy environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-Pin Interface\u003c\/strong\u003e — VCC, GND, I\/O; plug-and-play with Arduino sensor shields\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5-Pack Value\u003c\/strong\u003e — Spares for multiple projects or replacement stock\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eArduino alarm system (motion sensor + buzzer)\u003c\/li\u003e\n\u003cli\u003eDoorbell and entry notification\u003c\/li\u003e\n\u003cli\u003eLow battery warning indicator\u003c\/li\u003e\n\u003cli\u003eButton press audio feedback\u003c\/li\u003e\n\u003cli\u003eTimer and countdown completion alert\u003c\/li\u003e\n\u003cli\u003eError and fault notification in embedded systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eArduino Example\u003c\/h3\u003e\u003cp\u003eConnect VCC to 5V, GND to GND, I\/O to Arduino pin 8.\u003cbr\u003e\u003ccode\u003epinMode(8, OUTPUT);\u003c\/code\u003e\u003cbr\u003e\u003ccode\u003edigitalWrite(8, HIGH); \/\/ Buzzer ON\u003c\/code\u003e\u003cbr\u003e\u003ccode\u003edelay(500);\u003c\/code\u003e\u003cbr\u003e\u003ccode\u003edigitalWrite(8, LOW); \/\/ Buzzer OFF\u003c\/code\u003e\u003c\/p\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: How do I know if my buzzer is active or passive?\u003c\/strong\u003e\u003cbr\u003eA: Apply 3V–5V DC directly to the buzzer terminals. If it beeps continuously — it’s active. If silent — it’s passive (requires AC\/PWM signal).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can active buzzer play melodies?\u003c\/strong\u003e\u003cbr\u003eA: No — active buzzers produce only one fixed frequency (~2300Hz). For melodies and variable tones, use a passive buzzer with Arduino’s tone() function.\u003c\/p\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e5× Active Buzzer Module (3V \/ 5V \/ 12V — per selected variant)\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"12V Active Buzzer","offer_id":46991508603115,"sku":"14:173#12V Active Buzzer","price":4.76,"currency_code":"USD","in_stock":true},{"title":"5V Active Buzzer","offer_id":46991508635883,"sku":"14:193#5V Active Buzzer","price":4.76,"currency_code":"USD","in_stock":true},{"title":"3V Active Buzzer","offer_id":46991508668651,"sku":"14:771#3V Active Buzzer","price":4.76,"currency_code":"USD","in_stock":true},{"title":"SFM-20B","offer_id":46991508701419,"sku":"14:350850#SFM-20B","price":16.6,"currency_code":"USD","in_stock":true},{"title":"Mini Plug Speaker","offer_id":46991508734187,"sku":"14:365458#Mini Plug Speaker","price":4.36,"currency_code":"USD","in_stock":true},{"title":"Passive Buzzer","offer_id":46991508766955,"sku":"14:1254#Passive Buzzer","price":3.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/active-buzzer-3v-5v-12v-magnetic-beep-module-arduino.webp?v=1761529252","url":"https:\/\/keszoox.com\/products\/active-buzzer-module-3v-5v-12v-magnetic-continuous-arduino-5pack","provider":"Keszoox","version":"1.0","type":"link"}