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Active Built-in Oscillator: No external driving circuit or MCU square wave required. Directly sound continuous tone after DC power supply.
Wide Operating Voltage Range: Works steadily from 6V to 15VDC, compatible with 12V standard power supply system.
Loud Clear Warning Sound: Min.85dB sound pressure level at 30cm distance, obvious alert tone for security alarm.
Pre-wired Red & Black Leads: Convenient for quick wiring and installation on alarm equipment.
Low Power Consumption: Max rated current only 20mA at 12VDC.
Stable Wide Temperature Performance: Reliable operation within -20℃ ~ +70℃.
RoHS Compliance: Meets international environmental requirements for export electronic products.
Item | Specification | Test Condition |
|---|---|---|
Model | Active Piezoelectric Buzzer with wire leads | - |
Rated Voltage | 12VDC | - |
Operating Voltage | 6~15 VDC | - |
Rated Current | Max.20mA | At 12VDC |
Sound Output | Min.85dB @30cm | At 12VDC |
Resonant Frequency | 3500 ±500 Hz | - |
Tone Type | Continuous Tone | - |
Operating Temperature | -20℃ ~ +70℃ | - |
Storage Temperature | -30℃ ~ +80℃ | - |
Net Weight | Approx.4.5g | - |
Compliance | RoHS | Yes |
Unless otherwise specified, parts are measured under ambient condition: Temperature: 5 ~ 35℃, Humidity: 45% ~ 85%R.H., Atmospheric pressure: 860 ~ 1060hPa. Standard measuring condition: Temperature: 25±3℃, Humidity: 60±10%R.H., Atmospheric pressure: 860 ~1060hPa.
This active piezoelectric buzzer adopts piezoelectric ceramic chip and built-in oscillation circuit. When DC voltage is applied, the internal circuit excites the piezo wafer to vibrate and produce continuous audible alert tone automatically. Different from passive piezo buzzers, it does not require external square wave signal. Just connect DC power to trigger alarm sound, greatly simplify your circuit design.
This wired 12V active piezo buzzer is widely used for continuous warning & reminder:
Security door alarm / Door contact alarm
Access control & intercom system
Burglar anti-theft alarm system
Industrial equipment fault warning
Fire & smoke detector auxiliary alert
Home safety alarm devices
We are professional manufacturer of electro-acoustic components. Custom service available for this wired active buzzer: resonant frequency, sound volume and wire length can be customized as your requirement. Samples can be offered for performance testing before mass order. RoHS certificate can be provided upon request. Please contact our engineer team to check MOQ and quotation.
Q: Is this active or passive buzzer? A: It is active piezo buzzer with built-in oscillator. Direct DC power input to get continuous tone, no MCU drive needed.
Q: What is the rated voltage? A: Rated voltage 12VDC, operating voltage range 6~15VDC.
Q: How loud is this buzzer? A: Min 85dB measured at 30cm under 12VDC power.
Q: What kind of tone does it output? A: Continuous long beep tone.
Q: Can I get samples for testing? A: Yes, samples available for prototype verification.
Q: Is it RoHS compliant? A: Yes, this buzzer meets RoHS standard, certificate available.
