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BPC3020-1230 12V High Power Piezo Buzzer 30*20mm 3100Hz Built-in Circuit Piezo Buzzer for Alarm Systems

TAT BPC3020-1230 12V Active Piezo Buzzer Φ30×20mm 3000Hz High Decibel Continuous Tone for Alarm System

BPC3020-1230 is an active piezoelectric buzzer with built-in driving circuit manufactured by TAT. This cylindrical piezo alarm buzzer measures Φ30×20mm, it can work directly with DC power supply without extra drive signal. It delivers loud continuous alert tone at 3000Hz, featuring ultra-high sound pressure up to 103dB, ideal for audible warning in security and industrial alarm systems.

Model:
BPC3020-1230
Brand:
TAT
Code:
BPC3020-1230

Style:	Piezoelectric Ceramic Buzzer Built-in Osciliating Circult Type
Rated Voltage:	12VDC
Operating Voltage:	6-15VDC
Rated Current:	Max.30mA,at 12VDC
Sound Output at 10cm:	Min.95dB,at 12VDC
Resonant Frequency:	3000±500Hz
Tone:	Continuous
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Product Description

Key Features

Active piezo buzzer with built-in drive circuit, DC direct drive
Rated Voltage: 12 VDC; Operating Voltage: 6–15 VDC
Rated Current: Max 30mA @12VDC
Sound Pressure Level: Min.103dB at 10cm
Resonant Frequency: 3000 ±500Hz
Output Tone: Continuous steady beep
Housing: Black ABS, impact resistant
Pin terminal with polarity mark for easy wiring
Operating Temperature: -20℃ ~ +70℃
Storage Temperature: -30℃ ~ +80℃
RoHS compliant for global electronic projects

Technical Specification

Item	Specification	Test Condition
Rated Voltage	12 VDC	-
Operating Voltage	6–15 VDC	-
Rated Current	Max. 30 mA	12VDC
Sound Output	Min.103 dB @10cm	12VDC
Resonant Frequency	3000±500 Hz	-
Tone Type	Continuous	-
Operating Temperature	-20℃ ~ +70℃	-
Storage Temperature	-30℃ ~ +80℃	-
Net Weight	Approx 7 g	-
Housing Material	Black ABS	-
Environmental Standard	RoHS	Yes

Application

This high-decibel active piezo buzzer is widely used for audible warning:

1. Security alarm systems

2. Fire detection & smoke alarm devices

3. Industrial control equipment

4. Access control & door alarm

5. Vehicle warning modules

6. Automation machine fault indication

7. Cabinet safety alert

Custom & Order Service

Samples available for acoustic performance test
Custom options: resonant frequency, wire harness, laser marking, pin style
Datasheet, RoHS certificate and inspection report available upon request

FAQ

Q: Is this active or passive buzzer? A: It is active piezo buzzer with internal circuit. It works directly by connecting DC power, no square wave signal needed.

Q: What is the advantage of 103dB high sound output? A: Extremely loud alert sound, suitable for noisy workshop, outdoor cabinet and long-distance warning scenarios.

Q: Can it run on 9V or 15V power supply? A: Yes, the working voltage range is 6–15VDC, compatible with most common alarm board power supply.