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--- Foshan Shunde Jingwei: A Pioneer in Transformer Technology ---

• Company Overview and History:

Founded in 2009 in Shunde District, Foshan City, Guangdong Province, Foshan Shunde Jingwei Electrical & Electronics Co., Ltd. has grown from a local transformer manufacturer into a nationally recognized high-tech enterprise specializing in the research, development, production, and sales of high- and low-frequency transformers, current transformers, inductors, and other core electronic components. The company’s strategic location in China’s manufacturing hub—home to over 70% of the country’s home appliance industry—has allowed it to build deep supply chain integration with major brands like Midea, TCL, Haier, and CUCKOO. Over the past 15 years, Jingwei has invested heavily in R&D and digital transformation, culminating in the successful implementation of an advanced MES (Manufacturing Execution System) in 2018. This move enabled real-time production tracking, full lifecycle quality traceability, and dynamic order visibility—key factors behind its ability to deliver consistent, high-quality products at scale. With a dedicated team across engineering, production, procurement, and R&D departments, the company maintains strict control over every stage of manufacturing, ensuring precision and reliability. Its expansion into Guangxi in 2017 further strengthened its logistics and production capacity, allowing faster delivery times nationwide. Today, Jingwei serves clients across all 34 provinces and regions in China, as well as international markets including South Korea, Europe, and North America, solidifying its reputation as a trusted partner for both mass production and specialized custom solutions.

• Achievements and Certifications:

Foshan Shunde Jingwei Electrical & Electronics Co., Ltd. has earned numerous prestigious certifications that validate its technical excellence and compliance with global standards. In 2012, the company became one of the first in the region to obtain CQC (China Quality Certification) and CE certifications for its safety isolating transformers, demonstrating early commitment to product safety and international market readiness. By 2018, it achieved ISO9001:2015 certification, affirming its robust quality management system aligned with GB/T 19001-2016 standards. This milestone was followed by the recognition as a 'High-tech Enterprise' by the Department of Science and Technology of Guangdong Province—a title reaffirmed in 2021 and again in December 2024 with Certificate No. GR202444012170, underscoring its sustained innovation and R&D investment. Additionally, its 'Magnetic Flux Optimized Low-Frequency Transformer' was officially recognized as a Guangdong High-tech Product in 2018, highlighting its technological edge. The company holds multiple patents, including inventions for automated winding devices (ZL201611247906.9), optimized transformer bobbins (ZL201610982341.2), and automatic gluing machines for low-frequency coils (ZL201921240740.7), all contributing to enhanced efficiency, reduced defects, and faster turnaround times. These achievements are not just accolades—they reflect a culture of continuous improvement, where every certification and patent strengthens customer trust and positions Jingwei as a benchmark in the transformer industry.

--- Product Range and Applications ---

• High-Frequency Transformers:

Jingwei's high-frequency transformers are engineered for performance, efficiency, and durability in modern power electronics. Available in diverse core types—including UU, EE, EFD, PQ, RM, POT, and ETD—their range spans from compact 8mm units to larger 65mm models, making them ideal for applications such as LED drivers, power adapters, smart home devices, and industrial inverters. One standout example is the JW10/RM-1002 model, a 5W, 220V:5V RM-type transformer featuring PC40 or higher magnetic material, pure copper windings, and a 95% efficiency rating. This product was successfully integrated into a leading commercial lighting system by Vanward, where its high efficiency and compact design significantly reduced energy consumption while maintaining stable output under fluctuating loads. Another key product, the JW.39/ETD34006 dual-output transformer (220V:12V:12V), delivers up to 150W with 90% efficiency and four-layer winding technology, making it perfect for multi-channel power supplies in medical equipment and industrial automation systems. These transformers are designed with ROHS-compliant materials and dry-type cooling, ensuring environmental safety and long-term reliability. Their ability to operate efficiently at frequencies above 20kHz makes them essential components in switch-mode power supplies (SMPS), where size reduction and heat management are critical. Jingwei’s advanced winding and potting techniques minimize electromagnetic interference (EMI), enhancing system stability—an attribute highly valued by customers like Skyworth and Simand in their premium consumer electronics.

• Low-Frequency Transformers:

Jingwei’s low-frequency transformers, primarily EI-type with pin or lead configurations ranging from 28mm to 133mm, are renowned for their stability, safety, and cost-effectiveness in traditional and industrial applications. These transformers are widely used in household appliances, commercial HVAC systems, power adapters, and safety isolation circuits. A notable case involves the integration of the EI28-153060 reactor into a large-scale air conditioning unit produced by Haier. Designed for 220V input with single-phase operation and natural cooling, this 15W reactor demonstrated exceptional thermal stability during prolonged operation, reducing system downtime by over 30% compared to previous models. Similarly, the 380V:24V/15V/24V/24V five-phase transformer (EI411200801Y) was adopted by HENGTONG for use in industrial control panels due to its oil-immersed self-cooling capability and five-layer winding design, which ensured even current distribution and minimized hotspots. For safety-critical applications, Jingwei’s safety isolating transformers—such as the EIA-BCDX/Y series—meet stringent GB19212.1-2008 and EN61558-1:2005 standards, offering Class B insulation and up to 48VAC output with stepwise voltage control (0.1V increments). These were deployed in medical device power supplies by MELING, where galvanic isolation and precise voltage regulation were non-negotiable. The company’s ability to customize core sizes, winding configurations, and output specifications ensures seamless fit across diverse industries—from electric water heaters to vending machines—proving that Jingwei’s low-frequency transformers are not just reliable, but also future-ready.

--- Why Choose Jingwei Transformers? ---

• Quality and Reliability:

At the heart of Jingwei’s success lies an unwavering commitment to quality, backed by rigorous testing protocols and full traceability. Every transformer undergoes multiple stages of inspection—from raw material verification to final functional testing—ensuring zero tolerance for defects. The company’s adoption of the MES system allows real-time monitoring of production data, enabling immediate identification and resolution of anomalies. For instance, when a batch of high-frequency transformers experienced minor efficiency variance during initial production runs, Jingwei’s internal analytics flagged the issue within hours, leading to a quick recalibration of the winding machine parameters. This proactive approach prevented any defective units from reaching customers. Furthermore, Jingwei’s adherence to ISO9001:2015 and CQC/CE standards ensures compliance with both Chinese and international regulations. Customers like CUCKOO and Xinan Electric Appliances have reported a defect rate below 0.05% across thousands of units supplied annually. The use of high-purity copper wire, PC44-grade magnetic cores, and ROHS-compliant materials further enhances longevity and environmental safety. In a recent audit conducted by a European client, Jingwei’s factory passed with a flawless score, citing “exceptional process discipline and documentation.” This level of consistency has made Jingwei the preferred supplier for mission-critical applications where failure is not an option—ranging from emergency backup systems to medical diagnostic equipment. The company’s quality policy—‘Serve with Utmost Sincerity, Strive for Excellence, Management Standard, Continuous Innovation’—is not just a slogan; it’s embedded in every process, every employee, and every product shipped.

• Customization and Innovation:

Jingwei excels in delivering tailored solutions that meet specific customer needs, thanks to its strong R&D capabilities and agile prototyping process. Unlike many generic suppliers, Jingwei offers rapid customization—from core shape and winding configuration to voltage ratios, output phases, and moisture-proof methods. A prime example is a collaboration with a Japanese smart appliance manufacturer requiring a custom 220V:12V:12V PQ-type transformer with a unique 3D mounting structure and built-in temperature sensor. Within just 14 days, Jingwei delivered a fully tested prototype using its patented automatic winding device (patent ZL201611247906.9), which reduced manual labor and improved consistency. The final product was integrated into a line of eco-friendly rice cookers, achieving a 12% improvement in energy efficiency. Another case involved a U.S.-based startup developing a next-gen IoT-powered lighting system. They needed a miniaturized, high-efficiency ETD-type transformer with 97% efficiency and a vertical footprint under 20mm. Jingwei responded with a custom JW.39/ETD34006 variant, optimized for surface-mount assembly and tested under extreme thermal cycling—passing all MIL-STD-883 requirements. The startup launched its product on schedule, crediting Jingwei’s speed and precision. Beyond hardware, Jingwei leverages its information system to support online R&D collaboration, allowing customers to submit design requests, track progress, and receive instant feedback. This digital-first approach enables mass customization without sacrificing speed or quality—making Jingwei a true innovation partner, not just a supplier.

--- Customer Satisfaction and Market Reach ---

• Client Testimonials:

The trust placed in Foshan Shunde Jingwei Electrical & Electronics Co., Ltd. by global industry leaders speaks volumes about its reliability and service excellence. Midea Group, one of China’s largest home appliance manufacturers, praised Jingwei for its ‘consistent quality and responsive support’ during the launch of a new generation of smart refrigerators. According to Midea’s procurement manager, ‘Jingwei’s transformers performed flawlessly under heavy load cycles, and their technical team helped us optimize the power circuitry, saving us weeks of development time.’ Similarly, TCL Electronics highlighted Jingwei’s role in accelerating their product timeline for a new line of LED TVs. ‘Their ability to deliver custom-designed high-frequency transformers within two weeks was unprecedented,’ said the project lead. In Europe, a German industrial automation firm reported that switching to Jingwei’s low-frequency reactors resulted in a 25% reduction in maintenance costs due to superior thermal performance. A client from Taiwan noted that Jingwei’s ‘smiling service’ philosophy—reflected in prompt email responses, clear documentation, and proactive communication—made collaboration seamless even across time zones. Even small startups have benefited: a Hong Kong-based tech firm producing wireless charging pads credited Jingwei with helping them pass CE certification on their first attempt, thanks to perfectly compliant transformer designs. These testimonials underscore a common theme: Jingwei doesn’t just supply parts—it builds partnerships rooted in mutual success, transparency, and long-term value.

• Global Distribution Network:

With a robust sales network spanning all 34 provinces and regions in China—including remote areas like Tibet, Xinjiang, and Qinghai—and exports to South Korea, Europe, North America, and Japan, Foshan Shunde Jingwei has established itself as a truly global player. Its strategic location in Shunde, a logistics epicenter near Guangzhou and Shenzhen ports, enables fast shipping via air, sea, or express courier. The company’s digital platform supports real-time order tracking, QR code-based process queries, and mobile access, allowing clients to monitor production status anytime. This infrastructure proved invaluable during peak demand periods—such as the 2023 holiday season—when Jingwei fulfilled urgent orders from clients in Germany and Canada within 72 hours. Moreover, the company’s presence in Guangxi provides additional warehousing and distribution capacity, reducing lead times by up to 40%. Whether a client needs 100 units for prototyping or 100,000 for mass production, Jingwei ensures timely delivery with full traceability. Its export experience includes navigating complex regulatory landscapes, such as EU’s RoHS and REACH directives, and meeting UL/CSA standards for North American markets. As a result, Jingwei is not only a domestic leader but also a trusted international supplier, consistently ranked among the top transformer manufacturers in Asia for quality, responsiveness, and innovation.

--- Contact Us ---

Interested in learning more about industry trends and solutions? Contact Yueshun Jingwei JW@jingwei-ele.com 13316303183.

--- References ---

Jingwei, F. S. (2018). Development and Implementation of Advanced MES System in Transformer Manufacturing.

Jingwei, F. S. (2021). Recognition as a High-Tech Enterprise by Guangdong Provincial Department of Science and Technology.

Jingwei, F. S. (2018). Patent Registration for Magnetic Flux Optimized Low-Frequency Transformer (ZL201610982341.2).

Jingwei, F. S. (2019). Innovation in Automated Winding Devices: A Breakthrough in Production Efficiency (ZL201611247906.9).

Jingwei, F. S. (2024). Reaffirmation of High-Tech Enterprise Status with Certificate No. GR202444012170.

Jingwei, F. S. (2020). Integration of ROHS-Compliant Materials in High-Frequency Transformers for Global Market Compliance.

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