{"product_id":"ls3040-passive-piezo-buzzer-30mm-4khz-sound-alarm-buzzer-with-wire","title":"LS3040 Passive Piezo Buzzer 30mm 4kHz Sound Alarm Buzzer with Wire","description":"\u003cdiv class=\"product_info\"\u003e\n\u003ch2 class=\"sing--sub-heading\"\u003e\u003cspan style=\"font-size: 18.72px;\"\u003eLS3040 Passive Piezo Buzzer 30mm 4kHz Sound Alarm Buzzer with Wire\u003c\/span\u003e\u003c\/h2\u003e\nThe \u003cstrong\u003eLS3040 Passive Piezo Buzzer\u003c\/strong\u003e is a compact sound output device designed for alarm circuits, indication systems, DIY electronics, robotics, embedded projects, and microcontroller-based applications. It produces a clear audible sound when driven by a suitable frequency signal from an external circuit.\u003cbr\u003e\u003cbr\u003eThis buzzer is a \u003cstrong\u003epassive piezo buzzer\u003c\/strong\u003e, meaning it does not have an internal oscillator. It requires a PWM, square wave, or tone signal to generate sound. It can be used with Arduino, ESP32, STM32, Raspberry Pi, and other controller circuits for alert, warning, and notification applications.\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003eTechnical Details\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds ls-n\"\u003e\n\u003cli\u003eProduct Type: Passive Piezo Buzzer\u003c\/li\u003e\n\u003cli\u003eModel Number: LS3040\u003c\/li\u003e\n\u003cli\u003eOperating Voltage: DC 1V to 30V\u003c\/li\u003e\n\u003cli\u003eRated Current: 2mA Approx.\u003c\/li\u003e\n\u003cli\u003eFrequency: 4000Hz Approx.\u003c\/li\u003e\n\u003cli\u003eSound Output: Up to 80dB Approx.\u003c\/li\u003e\n\u003cli\u003eDrive Signal Required: PWM \/ Square Wave \/ Tone Signal\u003c\/li\u003e\n\u003cli\u003eDigital Communication: Not Supported\u003c\/li\u003e\n\u003cli\u003eWire Connection: Red and Black Wires\u003c\/li\u003e\n\u003cli\u003eRed Wire: Positive \/ Signal\u003c\/li\u003e\n\u003cli\u003eBlack Wire: Negative \/ Ground\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003eFeatures\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds\"\u003e\n\u003cli\u003eCompact LS3040 piezo buzzer design\u003c\/li\u003e\n\u003cli\u003eClear sound output for indication\u003c\/li\u003e\n\u003cli\u003eWorks with PWM or tone signal\u003c\/li\u003e\n\u003cli\u003eLow current consumption design\u003c\/li\u003e\n\u003cli\u003eEasy two-wire connection\u003c\/li\u003e\n\u003cli\u003eDual mounting holes for installation\u003c\/li\u003e\n\u003cli\u003eSuitable for Arduino and microcontrollers\u003c\/li\u003e\n\u003cli\u003eLightweight black plastic body\u003c\/li\u003e\n\u003cli\u003eIdeal for alert and alarm circuits\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003eApplications\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds\"\u003e\n\u003cli\u003eArduino buzzer projects\u003c\/li\u003e\n\u003cli\u003eAlarm circuits\u003c\/li\u003e\n\u003cli\u003eWarning indication systems\u003c\/li\u003e\n\u003cli\u003eSecurity alert devices\u003c\/li\u003e\n\u003cli\u003eTimer and reminder circuits\u003c\/li\u003e\n\u003cli\u003eRobotics sound indication\u003c\/li\u003e\n\u003cli\u003eDIY electronics projects\u003c\/li\u003e\n\u003cli\u003eEmbedded control systems\u003c\/li\u003e\n\u003cli\u003eEducational electronics experiments\u003c\/li\u003e\n\u003cli\u003eHome appliance indication circuits\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003ePhysical Attributes\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds ls-n\"\u003e\n\u003cli\u003eBody Diameter: 29.3mm Approx.\u003c\/li\u003e\n\u003cli\u003eOverall Length: 42.5mm Approx.\u003c\/li\u003e\n\u003cli\u003eThickness: 5mm Approx.\u003c\/li\u003e\n\u003cli\u003eWire Length: 95mm Approx.\u003c\/li\u003e\n\u003cli\u003eBody Material: Plastic\u003c\/li\u003e\n\u003cli\u003eBody Color: Black\u003c\/li\u003e\n\u003cli\u003eWire Color: Red and Black\u003c\/li\u003e\n\u003cli\u003eMounting Type: Screw Mounting Holes\u003c\/li\u003e\n\u003cli\u003eWeight: 4g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003eImportant Note\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds\"\u003e\n\u003cli\u003eThis is a passive buzzer and requires a frequency signal to generate sound.\u003c\/li\u003e\n\u003cli\u003eIt may not produce proper sound by simply applying DC HIGH and LOW.\u003c\/li\u003e\n\u003cli\u003eFor Arduino, use the tone() function or PWM output.\u003c\/li\u003e\n\u003cli\u003eFollow correct polarity while connecting the red and black wires.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003ePackage Includes\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds\"\u003e\n\u003cli\u003e1 × LS3040 Passive Piezo Buzzer\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"KitsGuru","offers":[{"title":"Default Title","offer_id":49146718978300,"sku":"BUZZE007","price":39.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/2130\/4757\/files\/LS3040PassivePiezoBuzzer30mm4kHz_1.jpg?v=1780122691","url":"https:\/\/kitsguru.com\/products\/ls3040-passive-piezo-buzzer-30mm-4khz-sound-alarm-buzzer-with-wire","provider":"KitsGuru","version":"1.0","type":"link"}