Shenghui Electronic

Product Overview

the industry-standard 5.0x5.0x2.0mm SMD Magnetic Buzzer, a pinnacle of micro-acoustic engineering designed for next-generation compact electronics. This ultra-miniature passive buzzer generates a clear 4KHz tone at 72dB, providing the perfect balance of audible feedback and power efficiency for space-constrained applications. Engineered for flawless SMT (Surface Mount Technology) integration, low voltage buzzer is the ideal low-profile alert solution for high-volume manufacturing of wearable devices, IoT sensors, and advanced consumer gadgets, ensuring reliability from the first prototype to mass production.

Product Feature:

Space-Saving Design:

SMD magnetic buzzer perfect for high-density PCBs with a miniature footprint of just 5.0x5.0mm and a low profile of 2.0mm.

Surface-Mount Technology (SMD):

Enables fast, automated pick-and-place assembly, significantly reducing production time and costs.

Optimized for 3V Operation:

SMD magnetic buzzer ideal for a wide range of portable and battery-powered devices, including wearables, IoT sensors, and handheld electronics.

Clear, Audible Alert:

Generates a sound pressure level of 72dB at 10cm with a distinct 4kHz tone, ensuring reliable user notifications.

RoHS & REACH Compliant:

Meets international environmental and safety standards for global market access.

SMD Magnetic Buzzer Applications

Wearable Electronics: Smartwatches, Fitness Trackers, Health Monitors

Portable Medical Devices: Glucose Meters, Portable Diagnostic Equipment

Consumer Electronics: Smartphones, Tablets, Remote Controls, Toys

Office Equipment: Printers, Scanners, Multifunction Devices

Shenghui Electronic Advantages

Decades of Electro-Acoustic Mastery:

As a professional low voltage buzzer buzzer manufacturer and supplier since 1996, Shenghui Electronic brings nearly three decades of specialized expertise in designing and manufacturing precision acoustic components, guaranteeing a product built on experience.

Vertical Manufacturing & Rigorous QC

We maintain control over core production processes, allowing for stringent in-house quality control at every stage. This ensures exceptional product consistency, traceability, and the agility to meet custom OEM/ODM requirements.

Globally Trusted Supply Chain Partner

Our components are integrated into products by internationally recognized brands. Our operations are backed by an ISO9001-certified quality management system, affirming our commitment to delivering reliable, high-standard components for global markets.

Full-Spectrum Engineering Support

Beyond supplying parts, our technical team offers comprehensive support, including driver circuit design consultation, acoustic performance optimization, and customized solution development to ensure the buzzer performs perfectly in your specific application.

Cost-Effective Scaling & Reliable Delivery

Leveraging our efficient manufacturing base, we provide highly competitive factory-direct pricing. Our scalable production capacity ensures a stable and dependable supply chain, capable of supporting orders from initial samples to millions of units monthly.

What Our Customers Say

Senior Engineer, Smart Wearable Startup: "Sourcing the right miniature components is critical for us. Shenghui's 5x5mm buzzer was the only one that met our strict size and power budget. The performance has been flawless in our pre-production batches, and their support was responsive."

Procurement Director, Consumer Electronics OEM: "We demand consistency and value. For three major product lines, we have relied on Shenghui as our primary SMD buzzer supplier. Their quality is unwavering, deliveries are on schedule, and the partnership has been instrumental to our success."

R&D Lead, IoT Hardware Company: "The combination of ultra-small size, clear sound, and competitive cost made Shenghui's buzzer the standout choice. Their documentation was thorough, and the transition to SMT assembly in our contract manufacturer's facility was completely smooth."

FAQ

Q1: Is this buzzer active or passive? How do I drive it?

A: This is a Passive (External Drive) Magnetic Buzzer. It requires an external square wave signal (ideally at 4KHz with 3Vp-p amplitude) to generate sound. It cannot be connected directly to a DC voltage. A simple drive circuit using a microcontroller GPIO pin and a transistor (NPN BJT or N-channel MOSFET) is standard. Contact us for a typical application schematic.

Q2: What are the MOQ and lead time for samples and production orders?

A: We encourage design-ins and offer accessible MOQs for evaluation samples. For production orders, our MOQ is flexible and scales with volume. Standard lead times are competitive, and we offer expedited options. Please email sales@shenghui.comwith your specific quantity and timeline for a precise quotation and schedule.

Q3: Can you customize this buzzer, for example, for a different voltage or sound level?

A: Yes, absolutely. Customization is a core strength of Shenghui Electronic as a direct manufacturer. We regularly work with clients to adjust parameters like operating voltage (e.g., 1.5Vp-p, 5Vp-p), resonant frequency, sound pressure level, or even terminal plating. Share your specifications with our engineering team for a tailored solution.

Part Number：ME505020-12R(3V)-4000-F

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