5V Active Buzzer for Industrial and Appliance Alarms

ECM-12095BZ 5V active buzzer for control panels and appliances

ECM-12095BZ buzzer features: plug & play active, loud 85dB output, wide 3-6V range

ECM-12095BZ buzzer standard acoustic test setup diagram (10cm measurement distance)

ECMIC microphones 12,000 m² factory with 6M+ units monthly output and ISO/CE certifications

ECMIC microphones automated production line overview, showing assembly and quality control process

A compact 12mm active buzzer delivering a clear 2500Hz alert. Designed for bulk integration into control panels, appliances, and electronic devices.

Model: ECM-12095BZ-5V2500HZ
Dimensions: 12 × 9.5 mm
Max SPL: 85 dB
Operating Voltage: 5 Vdc
Current Consumption: 30 mA

12×9.5mm Electromagnetic Active Buzzer for OEM

This compact Φ12.0×9.5mm electromagnetic active buzzer (Model: ECM-12095BZ-5V2500HZ) is designed for high-volume OEM integration. Operating on 5V DC, it features a built-in oscillation circuit that produces a fixed 2500Hz alert tone the moment power is applied.

Its simple “power-on, sound-on” operation eliminates the need for external drivers, making it a reliable and cost-effective choice for industrial controls, home appliances, computer motherboards, and electronic devices requiring a straightforward audible signal.

How It Works & Why Choose Active

Electromagnetic Active Buzzer Internal Diagram and Simple Connection

Internal Design: Combines a coil, magnet, and an integrated oscillator circuit. When DC voltage is applied, the oscillator drives the coil, causing a diaphragm to vibrate at the set frequency.

Key Advantage: Compared to passive buzzers, this active type simplifies your design—no microcontroller PWM or external timer is needed. Just switch the DC power to control the sound.

Dimensional Outline & Mounting (UNIT: mm)

Electromagnetic Buzzer Dimensions: Φ12.0×9.5mm with pin spacing

Compact footprint (Φ12.0×9.5mm) with standard pin configuration for easy through-hole PCB mounting. The diagram includes recommended PCB keep-out area for optimal sound projection and assembly clearance.

OEM Integration Benefits

Simplified Design-In: Reduces BOM and design time—no driver IC or oscillator needed.
Consistent Performance: Every unit produces the same 2500Hz tone at ≥85dB, ensuring uniform product sound quality.
Robust Construction: Electromagnetic design with PBT housing offers good durability for industrial and consumer applications.
Wide Voltage Compatibility: Operates from 3V to 6V, compatible with various logic levels and battery-powered systems.

Quality & Verification

Key performance parameters are verified under controlled standard test conditions to ensure the reliability and consistency required for mass production.

Standard acoustic test setup for ECM-12095BZ buzzer, showing 10cm measurement distance

Sound pressure level (≥85dB) is measured at a standard distance of 10cm in a free-field environment. Frequency and current are monitored using the recommended drive circuit.

Typical Bulk Applications

This buzzer is widely used as a standard alert component in:

Industrial: Control panel indicators, machinery fault alarms, timer completion signals.
Consumer Electronics: Microwave oven timers, washing machine end-of-cycle alerts, smoke detector low-battery warnings.
Computer Hardware: Motherboard diagnostic (POST) beepers.
Automotive Interior: Reversing sensor alerts, seatbelt reminders (in-cabin use).

Factory Direct Support

We supply this as a standard component for manufacturers worldwide. Support includes:

Samples for Qualification: Available for performance and fit testing.
Full Technical Documentation: Datasheet, CAD drawings (STEP/DXF), and material compliance reports (RoHS/REACH).
Volume Pricing & Packaging: Competitive quotes for annual contracts. Standard packaging in tubes or tape & reel for automated assembly.

For datasheets, samples, or to discuss your project’s volume requirements, please contact our sales team.

Sampling Process

Confirm customer requirements:

Review product application, microphone capsule specifications, usage scenarios, and sound quality needs.

Recommend and specify:

Provide recommended microphone capsule models and detailed specifications for customer evaluation.

Sample provision and testing:

Deliver microphone samples for customer testing and feedback purposes.

Optimize and finalize:

Refine microphone design based on feedback, finalize samples, and proceed to mass production upon quality approval.

Quality Assurance

Conducting sampling inspections of incoming materials to ensure compliance with standard requirements.

Performing inspection audits to ensure the stability and control of the entire manufacturing process.

Conducting pre-shipment inspections to ensure that products meet established quality standards.

Acoustic Laboratory

Testing of background noise, sensitivity, frequency response curve, and directionality indicators.

Verification of the impact of different circuits, structural dimensions, materials, and processes on indicators.

Reliability testing at both the new product design stage and the mass production regular stage.

Automatic Workshop

Utilizing fully automated production lines to ensure high efficiency and consistency.

Equipped with state-of-the-art facilities, including a 10,000-level dust-free workshop.

Employing a rigorous 21-step process to guarantee product stability.