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8.5*3mm 3V Small SMD Electromagnetic Buzzer

The 8.5 x 3mm 3V small SMD electromagnetic buzzer is a compact square buzzer designed for reflow soldering patch applications and small PCB layouts. With a rated voltage of 3V, operating range of 2V to 5V, resonant frequency of 2730Hz, and minimum sound output of 85dB at 10cm, it is suitable for compact electronic products, portable devices, and other applications that require a reliable SMT sound component.
  • HSMT8530AS-03L-2.730-3-R

  • HC

  • Product name: 8530 mini square magnetic buzzer
  • Application: reflow soldering patch buzzer
  • Rated Voltage (Vp-p): 3V
  • Operating Voltage (Vp-p): 2-5V
  • Resonant Frequency (Hz): 2730
  • Sound Output at 10cm (dB): ≥85
  • Current Consumption (mA): ≤100
  • Coil Resistance (Ω): 16±2
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Model HSMT8530AS-03L-2.730-3-R
Rated Voltage (Vp-p) 3
Operating Voltage (Vp-p) 2~5
Resonant Frequency (Hz) 2730
Current Consumption (mA) ≤100
Sound Output at 10cm (dB) ≥85
Coil Resistance (Ω) 16±2
Operating Temperature (℃) -20~+70
Storage Temperature (℃) -30~+80
Weight (g) 0.5
Housing Material LCP
RoHs Yes


 

Product Overview

The 8.5 x 3mm 3V small SMD electromagnetic buzzer is designed for compact electronic products that require dependable sound output, small footprint, and surface-mount assembly convenience. In many modern electronics, designers must fit acoustic components into tightly packed PCB layouts without sacrificing functionality. This 8530 mini square magnetic buzzer is built to meet that need.

Its square SMT structure supports efficient integration into compact circuits, while its sound output and voltage range make it practical for prompt tones, status indications, warning functions, and audible confirmation signals. For buyers sourcing buzzers for portable electronics, small industrial devices, or compact consumer products, this model offers a balance of size, performance, and production compatibility.

Because it is specified for reflow soldering patch use, this model is especially relevant for automated manufacturing environments where stable SMT processes are required. That makes it useful not only from a performance perspective, but also from a mass production and assembly efficiency perspective.

Key Features of the 8530 Mini Square Magnetic Buzzer

Compact Square Design for Small PCB Layouts

The 8.5 x 3mm form factor makes this buzzer suitable for compact PCB designs and electronic assemblies where space is limited. Small product designs often need miniature sound components that can fit into narrow layouts without forcing a redesign of the board or housing. This model is built for those constraints.

Suitable for Reflow Soldering Patch Assembly

This product is described as a reflow soldering patch buzzer, making it especially useful for SMT production lines. For OEM factories and electronics manufacturers, easy SMT processing helps improve assembly consistency, reduce manual operations, and support higher efficiency during mass production.

Stable 3V Performance with Flexible Operating Range

The rated voltage is 3V, while the operating range extends from 2V to 5V. This gives designers practical flexibility when integrating the buzzer into compact electronic circuits, including portable devices and small control systems. A wider usable voltage range can make design integration easier during product development.

Reliable Audible Output

With a minimum sound output of 85dB at 10cm, this small SMD electromagnetic buzzer can provide clear prompt and alert functions for many product categories. In miniaturized electronic products, it is important to maintain usable sound pressure despite limited component size, and this model is designed to address that requirement.

Stable Materials and Compact Construction

The use of LCP housing material helps support structural consistency for miniature buzzer products. Combined with supplier quality control and production process management, this contributes to more dependable sample-to-batch consistency for OEM and export buyers.

RoHS Compliance and Global Supply Readiness

The product is indicated as RoHS compliant, which is an important requirement for many global electronics buyers. For export-oriented sourcing projects, compliance support is often part of the standard component selection process.

Why Small SMD Electromagnetic Buzzers Matter in Modern Electronics

As more products move toward miniaturization, compact sound components become increasingly important. A small SMD electromagnetic buzzer is not simply a smaller version of a traditional buzzer. It must maintain workable sound output, integrate with SMT production, and fit within modern PCB design constraints. These requirements are especially common in smart devices, handheld products, medical electronics, industrial control modules, and compact consumer electronics.

For engineering teams, choosing the right buzzer is part electrical decision, part mechanical decision, and part supply-chain decision. The component must fit the board, match the operating voltage, provide adequate audible feedback, and be available with stable supply. That is why small square SMD buzzer models like this one are valuable in product development and sourcing work.

Applications

This 8.5 x 3mm 3V small SMD electromagnetic buzzer can be used in a wide range of products, including:

· Portable electronic devices

· Medical electronic equipment

· Thermometers and handheld testers

· Small PCB control modules

· Alarm prompt units

· Consumer electronics

· Industrial control boards

· Access systems and reminder modules

· Compact automotive electronic applications

Because of its small size and SMT compatibility, it is suitable for products where board density and automated assembly are key considerations.

Benefits for OEM Buyers and Product Developers

OEM buyers and developers often look beyond the datasheet when selecting a buzzer supplier. They care about whether the part can be sampled quickly, whether it fits production processes, whether performance remains stable in batch orders, and whether the supplier can support project-specific changes. This product aligns well with those priorities by combining a standard miniature design with sample support and customization capability.

For projects that require design confirmation before volume purchasing, free samples can speed up evaluation. For projects that require special tuning or modified parameters, an experienced supplier with acoustic engineering resources can provide better project support.

OEM and Customization Support

According to the product page, HC Electronic supports product customization based on customer needs and has a dedicated R&D team. This is useful for applications where standard voltage, acoustic output, packaging, or structural characteristics need adjustment. Customization support can be important in consumer electronics, industrial projects, and medical electronics where one-size-fits-all parts may not fully match product requirements.

Factory Strength and Supply Capability

The company information on the product site states that Hongchang Electronic has manufacturing experience dating back to 1997 and employs nearly 200 people, including acoustic engineers. The company also describes a factory building area of more than 10,000 square meters. For buyers evaluating long-term supply partners, this kind of factory background supports confidence in production continuity and manufacturing capacity.

Stable lead time and consistent product quality are especially important for OEM orders and repeat purchases. A manufacturing supplier with a defined production base and process control system can help reduce delivery risk and quality variation risk across long-term projects.

Quality Control and Reliability

The supplier states that product quality is controlled through a complete process system and quality inspection system. This matters because miniature buzzers are sensitive components, and product consistency can affect user experience, acoustic perception, and application reliability. In practical sourcing, buyers often need confidence that the approved sample and mass production lots will remain closely aligned.

Storage and Handling Notes

According to the product page, the buzzer must not be washed. It should be stored under stable temperature and humidity conditions and protected from large environmental fluctuations. Recommended storage conditions are temperature from -10C to +40C and humidity from 15% to 85% RH.

The indicated shelf life is six months after delivery under sealed and unopened packaging conditions. After opening the package, it is recommended to use the products as soon as possible to help maintain product characteristics.

Frequently Asked Questions

1. What is the model number of this buzzer?

The model shown on the product page is HSMT8530AS-03L-2.730-3-R.

2. What is the rated voltage?

The rated voltage is 3V, and the operating voltage range is 2V to 5V.

3. What is the sound output?

The sound output is specified as 85dB minimum at 10cm.

4. Is this buzzer suitable for SMT production?

Yes. It is designed as a small SMD electromagnetic buzzer and is described for reflow soldering patch applications.

5. What products can use this buzzer?

It can be used in portable electronics, medical devices, industrial control boards, compact alarms, and other small PCB-based products.

6. Do you offer free samples?

Yes. The supplier states that free samples are available, subject to confirmation with sales.

7. Can this product be customized?

Yes. The product page indicates that customization support is available according to customer needs.

8. Is it RoHS compliant?

Yes. The product page marks the buzzer as RoHS compliant.

Why Choose HC Electronic

· Factory established in 1997

· Long-term experience in buzzer and speaker manufacturing

· Nearly 200 employees including acoustic engineers

· Free sample support

· OEM and customization service

· Stable delivery capability

· Quality control process designed for mass production consistency


If you are sourcing a compact 8.5 x 3mm 3V small SMD electromagnetic buzzer for SMT-based electronic products, this 8530 mini square magnetic buzzer is a practical option for applications that need stable audible output in a limited installation space. It is designed for small PCB integration, reflow soldering production, and OEM projects that need a compact yet effective sound component.

In product categories such as portable electronics, medical devices, industrial controls, and small consumer electronics, engineers often face a familiar challenge: there is very limited board space, but the device still needs a clear tone for prompts, warnings, or operating confirmation. This is where a miniature SMT buzzer becomes important. It must fit the design, work within the required voltage range, and still provide adequate sound performance.

This product addresses those needs with a 3V rated voltage, 2V to 5V operating range, and 85dB minimum sound output at 10cm. Its 2730Hz resonant frequency helps provide usable acoustic performance for practical device alerts and audible feedback. In addition, its compact square shape is suitable for modern PCB layouts that demand efficient use of board area.

Another advantage of this model is its suitability for reflow soldering patch use. For manufacturers focused on automated assembly, SMT compatibility is a major factor because it affects labor cost, consistency, and throughput. A buzzer designed for reflow soldering can support more efficient production planning and better process integration compared with parts that require more manual handling.

From a sourcing perspective, buyers often need more than a basic component specification. They also need sample support, customization options, stable delivery, and confidence in production quality. HC Electronic presents this product as part of a broader factory manufacturing capability, with free samples and customization support available. For OEM and export buyers, that combination can help shorten evaluation time and reduce supply risk.

Whether you are looking for a small PCB SMD buzzer, a reflow soldering patch buzzer, or a 3V mini square magnetic buzzer for a compact device, this model is positioned as a flexible and factory-backed choice. It supports space-saving product design, practical acoustic output, and SMT production efficiency in one compact component.




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