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Top 10 China toroidal choke calculator Manufacturers

January 21, 2026
A toroidal choke calculator aids in designing efficient electromagnetic filters using toroidal cores. It estimates inductance, wire size, turns, and current capacity based on core material, dimensions, and desired performance. Widely used in power supplies, EMI suppression, and audio equipment, it ensures optimal noise reduction and energy efficiency. Key parameters include AL value, permeability, and saturation current. Accurate calculation enhances circuit reliability and minimizes electromagnetic interference in industrial and consumer electronics.

Shenzhen Hengtong Electronics Co., Ltd.

Establishment time : 2005

website : www.htelec.com

Main Product : LED lighting, LED displays, smart lighting systems, and Electronic Components

Company Profile

Shenzhen Hengtong Electronics Co., Ltd. is a leading Chinese manufacturer specializing in LED lighting solutions and electronic products. Founded in 2005, the company has grown into a globally recognized brand with a focus on innovation, quality, and customer service. It serves diverse markets with a wide range of products, including LED panels, outdoor lighting, and intelligent control systems. The company emphasizes R&D investment and sustainable manufacturing practices to maintain competitiveness in the fast-evolving electronics industry.

Zhejiang Kaitong Electric Co., Ltd.

Establishment time : 2003

website : http://www.zjkt.com.cn

Main Product : Electric motors, motor control systems, industrial automation equipment

Company Profile

Zhejiang Kaitong Electric Co., Ltd. is a leading manufacturer specializing in electric motors and automation systems, established in 2003. The company focuses on high-efficiency, energy-saving motor technology and has built a reputation for reliability and technical excellence. With advanced production facilities and a strong R&D team, it serves diverse industries including manufacturing, water treatment, and HVAC. Kaitong emphasizes sustainable development and global market expansion, maintaining a competitive edge through continuous innovation and customer-centric solutions.

Wuxi Tenglong Electric Co., Ltd.

Establishment time : 2005

website : http://www.wxtenglong.com

Main Product : Electric vehicles, electric scooters, electric bicycles, electric tricycles, and related components

Company Profile

Wuxi Tenglong Electric Co., Ltd. is a leading Chinese manufacturer specializing in electric two- and three-wheelers, established in 2005. The company focuses on R&D, production, and global sales of eco-friendly electric transportation solutions. With a strong export presence and continuous innovation, it has built a reputable brand in emerging markets.

Qingdao Rongsheng Electronics Co., Ltd.

Establishment time : 2006

website : http://www.qdrongsheng.com

Main Product : LED displays, LED lighting, intelligent control systems

Company Profile

Qingdao Rongsheng Electronics Co., Ltd. is a Chinese manufacturer specializing in LED display and lighting solutions, established in 2006. The company emphasizes innovation, technical support, and customer service, serving diverse markets with reliable and energy-efficient products.

Ningbo Yuhua Electronics Co., Ltd.

Establishment time : 2003

website : http://www.yuhua-electronics.com

Main Product : LED lighting, smart home products, power adapters, and electronic components

Company Profile

Ningbo Yuhua Electronics Co., Ltd. is a professional manufacturer specializing in LED lighting and smart home solutions, established in 2003. The company focuses on research and development, production, and global sales, serving clients with high-quality, energy-efficient electronic products. With an emphasis on innovation and customer satisfaction, it has built a strong reputation in international markets. The factory is ISO9001 and CE certified, ensuring compliance with global standards. It continues to expand its product portfolio and market reach through strategic partnerships and continuous technological advancement.

Shaanxi Ferrtx Enterprise Co.,Ltd.

Establishment time : 2023

website : www.ferrtx.com

Main Product : Power Inductor,RF Inductor,Transformers,EMC Filter - EMI/RFI, Sensor ,Power Converter

Company Profile

FERRTX - Your Trusted Global Magnetic Solutions Partner
Headquartered in Xi'an, China with R&D centers spanning three provinces, FERRTX represents 38 years of accumulated technical excellence in precision magnetics innovation.As a manufacturer certified by ISO/UL/CE/IATF 16949/CNAS, we operate four specialised production bases nationwide. We deliver industry-leading quality and cost-effective components to worldwide clients.
FERRTX distinguishes itself from others in our field through our World Class Design, Engineering, and Manufacturing expertise and by providing full custom circuit design support for your unique application. 
By combining cutting-edge automation technology with strict process control, we provide critical magnetic components to 500 customers in the global automotive, industrial and consumer electronics industries.
 
Solutions for Custom
At FERRTX, in addition to providing standard components, we offer comprehensive customisation services backed by 38 years of experience in manufacturing custom magnetic components and a team of 150 engineers.
This ensures that your products achieve optimal performance under specific voltage, frequency, and environmental conditions. We have successfully resolved complex electromagnetic interference (EMI) and radio frequency interference (RFI) issues in over 2,300 customer projects.
FERRTX boasts the industry's most comprehensive solution centre, supporting OEM customers in successfully completing critical product development, market launch, and production plans.
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Product categories include:
• Power Inductor
• RF Inductor
Transformer
EMI Filter
• Sensor
 
 
Manufacturing Excellenc
Our four smart factories in Shenzhen, Jinan, Xianyang, and Weinan cover a total area of over 12,000 square metres, with 80% of the production lines automated. we enforce rigorous quality control systems and comprehensive outgoing inspection to guarantee the reliability of every product reaching our customers.
 
Corporate Philosophy
Although our annual production exceeds 200 million units, FERRTX measures success primarily by the long-term trust of more than 500 enterprise customers from over 40 countries. We have accumulated a database of solutions covering more than 2,300 application scenarios—from electric vehicle charging stations to satellite communications. This practical experience enables our engineers to anticipate design challenges before they arise, which is FERRTX's unique competitive advantage formed through global industrial cooperation.
 
Customer Assurance
FERRTX offers cost-effective solutions from prototype design to mass production, with predictable delivery cycles based on accurate scheduling and reliable execution capabilities. Our customer service team provides lifetime technical support, including fault analysis and technical support during the warranty period. This end-to-end accountability makes FERRTX the preferred development partner for Tier 1 suppliers in key industries.

Guangzhou Huaxin Electronics Co., Ltd.

Establishment time : 2003

website : http://www.gzhx-elec.com

Main Product : Electronic components, connectors, cables, circuit boards, and electronic accessories

Company Profile

Guangzhou Huaxin Electronics Co., Ltd. is a professional manufacturer specializing in electronic components and accessories, established in 2003. The company focuses on R&D, production, and sales of high-quality electronic products, serving various industries including consumer electronics, automotive, and industrial equipment. With advanced manufacturing facilities and a strict quality management system, it has built a solid reputation in the global market.

Shanghai Lianxin Electronic Technology Co., Ltd.

Establishment time : Shanghai Lianxin Electronic Technology Co., Ltd. was established on December 28, 2009.

website : www.lianxin-elec.com

Main Product : Main products include electronic components, circuit boards, power supplies, and industrial control equipment.

Company Profile

Shanghai Lianxin Electronic Technology Co., Ltd. is a professional manufacturer specializing in electronic components and systems integration, committed to innovation, quality assurance, and customer service since its founding.

Suzhou Jiaxing Electronic Co., Ltd.

Establishment time : Suzhou Jiaxing Electronic Co., Ltd. was established on May 20, 2008.

website : www.jiaxing-electronic.com

Main Product : Main products include electronic connectors, cable assemblies, PCB boards, and custom electronic components.

Company Profile

Suzhou Jiaxing Electronic Co., Ltd. is a professional manufacturer specializing in high-precision electronic components, with over 15 years of experience in R&D, production, and customer service. The company emphasizes innovation, reliability, and timely delivery to meet global client demands.

Dongguan Tianyi Electronic Co., Ltd.

Establishment time : 2003

website : www.tianyielectronic.com

Main Product : LED lighting, electronic components, power supplies, and smart home devices

Company Profile

Dongguan Tianyi Electronic Co., Ltd. is a leading manufacturer specializing in high-quality LED lighting and electronic components. Established in 2003, the company has built a strong reputation for reliability, technological advancement, and customer service. With a focus on sustainable development and R&D, it serves global markets with innovative solutions tailored to diverse consumer needs.

Hangzhou Zhongda Electronics Co., Ltd.

Establishment time : Hangzhou Zhongda Electronics Co., Ltd. was established in 2005.

website : www.zd-electronics.com

Main Product : Main products include power adapters, USB chargers, data cables, and electronic accessories.

Company Profile

Hangzhou Zhongda Electronics Co., Ltd. is a professional manufacturer specializing in electronic accessories with a focus on innovation, quality control, and customer service, dedicated to providing efficient and safe charging solutions worldwide.
Contact Us

Author:

Mr. FERRTX

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+86 02968087686

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