MB20 – 11mm PCB Mounting CT Buzzer (12V)

The MB20 – 11mm PCB Mounting CT Buzzer is a compact, reliable, and easy-to-integrate audio indicator designed for a wide range of electronic circuits. Operating at 12V with a clear continuous tone, this buzzer offers stable performance for alarms, notifications, safety indicators, and embedded systems.

Its compact 11mm pitch makes it ideal for tight PCB layouts, while its sturdy construction ensures long-term durability. Built for consistent sound quality, the MB20 delivers a loud output of 85 dB with a stable 4 KHz frequency, making it suitable for consumer electronics, home appliances, DIY projects, and industrial equipment.

With low power consumption, a wide 1.5–27V operating range, and simple PCB mounting, this buzzer is an excellent choice for engineers and hobbyists building audio alert systems.

Features:

• Compact 11mm pitch design fits easily into small PCB spaces.
• Produces a loud 85 dB continuous tone suitable for clear audible alerts.
• Wide operating voltage range of 1.5V to 27V, offering flexibility for multiple circuits.
• Durable ABS housing ensures long-lasting performance in various environments.
• Low current consumption (max 15 mA) for efficient operation in battery-powered devices.
• Easy-to-mount PCB design with 8mm lead length for quick installation.