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Big Musical Buzzer 3V to 12V DC - B27

SKU: BQF91CNMIO
★★★★ ★ ★
4.9 (84 reviews)
The B27 Big Musical Buzzer is a self-driven electronic sound indicator designed to produce a loud and clear musical tone when a DC voltage is applied. Operating within a voltage range of 3V to 12V DC, this buzzer features an internal oscillator circuit, eliminating the need for an external signal generator or PWM source. Its large 27mm housing enables higher...
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The B27 Big Musical Buzzer is a self-driven electronic sound indicator designed to produce a loud and clear musical tone when a DC voltage is applied. Operating within a voltage range of 3V to 12V DC, this buzzer features an internal oscillator circuit, eliminating the need for an external signal generator or PWM source.

Its large 27mm housing enables higher sound output compared to standard mini buzzers, making it suitable for alarm systems, warning devices, security equipment, robotics, automation systems, and educational electronics projects. The simple two-wire design allows quick integration into battery-powered and microcontroller-based circuits.

With low power consumption, reliable operation, and easy installation, the B27 Musical Buzzer is widely used in DIY electronics, industrial control systems, and embedded applications where audible indication is required.

Key Features

  • Self-driven musical buzzer
  • Wide operating voltage range of 3V–12V DC
  • Built-in oscillator circuit
  • Loud and clear sound output
  • No external frequency source required
  • Simple two-wire connection
  • Low power consumption
  • Fast response time
  • Durable ABS plastic housing
  • Compact and lightweight design
  • Easy installation and operation
  • Suitable for battery-powered applications
  • Compatible with Arduino, ESP32, STM32, and other controllers
  • Long service life and reliable performance

Shipping & Returns

Orders placed before 3 PM IST will be shipped on the same day (excluding Sundays and Public holidays) through our shipping partners. In rare cases, the pickup may get delayed during Public holidays / Bandh / Environmental disturbances.

Specifications

Specifications:

Product Type: Musical Buzzer
Model: B27
Operating Voltage: 3V – 12V DC
Drive Type: Self-Driven (Internal Oscillator)
Sound Type: Continuous Musical Tone
Sound Output Level: Approximately 85–95 dB
Operating Current: Typically 10mA – 30mA
Resonant Frequency: Approximately 2kHz – 4kHz
Connection Type: Two-Wire
Polarity: Positive (+) and Negative (-)
Housing Material: ABS Plastic
Diameter: Approximately 27mm
Height: Approximately 15–20mm
Mounting Type: Wire Mount / Panel Mount
Operating Temperature: -20°C to +70°C
Storage Temperature: -30°C to +85°C
Color: Black
Weight: Approximately 10g – 20g

Additional Resources

3-12V Buzzer with Wire.PDF

FAQ

1. What is a 3-12V Buzzer with Wire?

A 3-12V Buzzer with Wire is a compact audio signaling device designed to produce sound when powered with a DC voltage between 3V and 12V. It comes with pre-attached wires, making it easy to connect to electronic circuits and projects.

2. What voltage range does this buzzer support?

The buzzer operates within a voltage range of 3V to 12V DC. It can be used with batteries, power supplies, Arduino boards, and other microcontroller-based systems operating within this range.

3. What are the common applications of a 3-12V Buzzer with Wire?

This buzzer is commonly used in alarm systems, security devices, electronic toys, timers, doorbells, Arduino projects, automation systems, and various notification or warning circuits.

4. Can the buzzer be connected directly to an Arduino or microcontroller?

Yes, the buzzer can be connected directly to most Arduino, ESP32, ESP8266, and other microcontroller boards. Depending on the buzzer's current requirements, it may be driven directly from a digital output pin or through a transistor driver.

5. What are the advantages of a buzzer with pre-attached wires?

The pre-attached wires simplify installation and eliminate the need for soldering directly onto the buzzer terminals. This makes it convenient for prototyping, educational projects, repairs, and quick electronic circuit assembly.

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