The Difference Between Piezo Buzzers and Electromagnetic Buzzers
1.Introduction
2.Piezo Buzzers
3.Electromagnetic Buzzers
4.Piezo Buzzer vs Electromagnetic Buzzer
5.How to Choose the Right Buzzer for Your Application
6.A Reliable Buzzer Manufacturer and Supplier-BESTAR
7.Conclusion
Introduction
Buzzer is key audio output and are used in thousands of consumer and industrial products. The buzzers are providing alarms, notifications, tones and alerts in anything from smart home appliances to medical instruments. Among the present many types of buzzers, the piezo buzzer and the electromagnetic buzzer are commonly used. Each of these types have their own unique characteristics, sound profiles and advantages in their use.
This article outlines how piezoelectric buzzer and electromagnetic buzzer operate and how the two compare to each other as well as some tips for picking the right buzzer for the job. In addition, we will introduce one of the top manufacturers and global suppliers of piezoelectric buzzer parts and acoustic solutions in the world-BESTAR Holdings Co.,Ltd.

Piezo Buzzers
A piezo buzzer makes use of the piezoelectric effect, when ceramic material is deformed by the application of voltage. Inside, there is a ceramic element, together with a thin metal plate to which it is bonded. When AC voltage is passed into the element, it vibrates and produces sound.
Piezoelectric Buzzer Key Features
1.Low Power Consumption-Can operate efficiently below 20mA power level (ideal for battery powered devices)
2.High Sound Pressure Level (SPL)-Delivers good output at higher frequencies usually 2-10kHz.
3.Lightweight and Compact-Suitable for slim and wearable products, handheld devices.
4.No Electromagnetic Interference-Since this does not depend on magnetic fields, this gives stability in magnetic fields that are sensitive to noise.
5.High Reliability-Since little mechanical wear takes place, it will have a long operational lifetime.
Common Applications
Smartwatches Forum and wearable devices
Household appliances
Security alarms and sensors
Automotive instrument panels
Electromagnetic Buzzers
An electromagnetic buzzer generates sound by the use of a coil driven magnetic field to vibrate a diaphragm. The structure looks like a mini low frequency speaker.
Electromagnetic Buzzer Key Features
1.Better Low Frequency Performance-Produces softer sounds in the area of 1-3KHz.
2.More Natural Sound Quality-Suitable for devices that are required pleasant or rhythm tones.
3.Higher Power-Companies have to draw more current than piezo buzzers.
4.Possible Electromagnetic Interference-There is a possibility that the magnetic field will affect nearby circuitry.
Common Applications
Toys and consumer electronics products
Timers and reminder devices
Audio notification modules
Portable Communication Products
Piezo Buzzer vs Electromagnetic Buzzer
We will use a table to help illustrate the differences between piezoelectric buzzers and electromagnetic buzzers in a more inuitive way.
| Feature | Piezo Buzzer | Electromagnetic Buzzer |
| Working Principle | Piezoelectric ceramic vibrations | Magnetic coil drives diaphragm |
| Power Consumption | Very low | Higher current required |
| Sound Output | Louder at high frequency | Better at low frequency |
| EMI Sensitivity | No electromagnetic interference | Can be affected by EMI |
| Structural Durability | Long lifespan, fewer moving parts | Lower lifespan due to magnet and coil wear |
| Approximate Resonant Frequency | 2 to 6 kHz | 1 to 3 kHz |
| Best Use Scenarios | Alerts, alarms, Automotive instrument panels | Toys, reminders, softer alerts,consumer electronics products |
How to Choose the Right Buzzer for Your Application
Compare the advantages and disadvantages of piezoelectric and magnetic buzzers in your particular application. Review all of the specifications, and select the buzzer that must work the best for your intended use.
| Requirement | Recommended Buzzer Type | Reason |
| Low Power System / Battery Driven | Piezo Buzzer | Consumes less energy |
| Need High Volume Alerts | Piezoelectric Buzzer | Higher SPL at high frequency |
| Soft / Pleasant Tone Needed | Electromagnetic Buzzer | Better low-frequency response |
| Space-Constrained Design | Piezoelectric Buzzer | Slim and compact design |
| EMI-Sensitive Circuit | Piezo Buzzer | No magnetic field interference |
We command:
Choose piezo for clear, loud, and energy-efficient alerts.Choose electromagnetic for soft, low-frequency tones.
A Reliable Buzzer Manufacturer and Supplier-BESTAR
When taking buzzers from suppliers, quality and consistency is a must. BESTAR Holdings Co.,Ltd is a leading global world provider of acoustic, sensing and miniature active cooling components and solutions, providing piezo buzzer/electromagnetic buzzer, with powerful R&D and mass production capability.
BESTAR Advantages
1.In-house production of piezoelectric ceramic materials
2.Custom piezo buzzers and electromagnetic buzzer modules
3.Acoustic performance tuning support
4.Strong reliability testing and quality control
5.Global supply to consumer electronics, automotive industries
BESTAR provides stable, high-performance buzzers designed for long-term reliability and precise sound output.
BESTAR delivers buzzers that are stable and high performing and are built for long term reliability and accuracy in sound.
Conclusion
Both piezo buzzers and electromagnetic buzzers play an important role in the electronics today. They all make sound, but each is different, offering differing sound, power consumptions and construction as suited to different tasks.
To ensure honest performance, as well as qualified engineering help, it is better to work with a well-known manufacturer of buzzers such as, BESTAR which offers high quality products and consistent acoustic output.
Looking for the suitable Piezoelectric Buzzer&Electromagnetic Buzzer solutions? Contact our team of engineers right now for advice and a quote.








