TAT BMC9040-0528 Magnetic Buzzer Pin Mount 9.0*4.0mm 5VDC 2800Hz

Active electromagnetic buzzer is an electro‑acoustic component with built‑in driving circuit. It generates sound through the interaction between the internal electromagnetic coil and metal diaphragm. When rated DC voltage is supplied, the internal circuit drives the coil to produce alternating magnetic field, making the metal diaphragm vibrate rapidly and output clear prompt tones. Featuring simple driving requirement, fast response and loud sound output, active electromagnetic buzzers are widely used in various electronic devices requiring stable audio feedback.

Product Advantages

1.Compact & Light‑weight Design

Active electromagnetic buzzers feature small dimension, thin thickness and light weight, which can be easily built into compact electronic devices and high‑density PCB layouts. With compact internal construction and high mechanical reliability, they save valuable internal space, making them ideal for portable and miniaturized electronic products.

Keywords: compact active buzzer, lightweight buzzer, small‑size electromagnetic buzzer, micro active buzzer

2.Loud Sound & Fast Response

Active electromagnetic buzzers deliver high sound pressure level and produce clear alert tones immediately after DC power‑on, no external pulse signal required. With good sound propagation performance, they work well in noisy environments for user reminders, and are widely adopted in alarms, doorbells, instruments and status‑notification equipment.

Keywords: high‑decibel active buzzer, fast‑response buzzer, alarm buzzer, loud electromagnetic buzzer

3.Stable Performance & Convenient Power Supply

Active electromagnetic buzzers work directly on fixed DC voltage. They maintain stable performance without obvious sound attenuation during long‑time continuous or intermittent beeping operations, suitable for scenarios requiring frequent audio alerts.

Keywords: stable buzzer, continuous beep buzzer, DC powered buzzer, alarm reminder buzzer

4.No External Circuit Needed & Convenient Integration

Active electromagnetic buzzers only need DC power supply to work, without extra peripheral driving circuit. They are easy to connect with single‑chip microcomputers, control boards and various electronic systems. Simple mounting structure allows fast integration into home appliances, industrial equipment, automotive electronics and smart devices.

Keywords: DC active buzzer, built‑in drive buzzer, easy‑integrated buzzer, PCB‑mount buzzer

Technical Parameters

Product Applications

1.Consumer Electronics & Smart Devices

Active electromagnetic buzzers are commonly used in smart home panels, remote controllers, wearable devices and small smart devices for notification alerts, keypad tones, alarm signals and status reminders. Compact size and clear sound enhance human‑machine interaction and user experience for portable electronics.

2.Home Appliances

They are applied in microwave ovens, rice cookers, washing machines, air‑conditioners, water dispensers and other small home appliances, to deliver completion reminders, timing alerts and fault warnings, providing stable audible feedback for household equipment.

3.Alarm & Security Systems

Suitable for smoke detectors, gas alarms, anti‑theft alarm devices, fire‑safety equipment and emergency warning systems. High sound pressure and quick response can notify users of abnormal conditions promptly, improving safety for residential and commercial premises.

4.Automotive Electronics

Active electromagnetic buzzers serve for dashboard reminders, reverse parking alerts, seat‑belt warning, door‑ajar notification and vehicle fault alarms. They keep stable performance under vehicle voltage fluctuation and vibration conditions for automotive applications.

5.Industrial Control & Automation

Used in industrial equipment, CNC machines, automated production lines, instruments and controllers for fault alarms, status indication and operation prompts. Good durability and reliability meet the requirements of harsh industrial operating environments.

Product Selection Guide

When selecting an active electromagnetic buzzer, confirm the rated DC voltage to match your system circuit. No external pulse‑generating circuit is required for active‑type.

Select proper outline dimension and pin configuration according to mounting space, to fit your PCB footprint or installation holes.

Evaluate required sound pressure based on application scenarios: 80‑95dB for normal prompt use; 95‑110dB is recommended for alarm or noisy surroundings.

Check operating temperature range, interface specification and reliability standards to guarantee long‑term stable performance.