Served Litz Wire: A High-Quality Solution for High-Frequency Applications
Served Litz Wire is an advanced type of litz wire designed specifically to enhance performance in high-frequency electrical applications. This wire is characterized by being wrapped, or “served,” with a protective layer of textile materials such as nylon, natural silk, or bondable fibers. This additional layer provides enhanced mechanical protection, improved electrical strength, and smoother winding performance, making it ideal for transformers, inverters, and wireless charging systems.In this article, we’ll explore the construction, benefits, and applications of served litz wire, focusing on its technical strengths, customization options, and suitability for demanding industries. By the end, you’ll understand why served litz wire is a critical component for modern high-frequency electrical systems.
What is Served Litz Wire?
Served Litz Wire is a specialized form of litz wire in which the individual strands or the entire bundle of copper litz wire are wrapped with a protective layer of fiber or silk. This layer, commonly made of nylon, Dacron, or natural silk, enhances the wire’s durability, making it more resistant to mechanical stress and damage during the winding process.
Key Features of Served Litz Wire
- Enhanced Electrical Strength: The served layer protects the enamel coating on the strands, ensuring better insulation and reduced risk of breakdown.
- Smoother Winding: The served layer improves the wire’s surface uniformity, allowing for easier and more precise winding.
- High Thermal Resistance: The use of high-quality materials ensures durability under elevated temperatures.
How is Served Litz Wire Constructed?
The construction of served litz wire involves wrapping a group of individually insulated strands with a layer of nylon or similar materials. This process ensures that the wire maintains its flexibility while improving its mechanical and electrical properties.
Materials Used in Served Litz Wire
- Nylon: Provides high mechanical strength and flexibility.
- Natural Silk: Offers a smooth finish and excellent thermal resistance.
- Bondable Fibers: These fibers can be bonded using heat or acetone, forming a stable coil structure during the manufacturing process.
Types of Served Litz Wire
Depending on the application, served litz wire can be customized with various serving configurations:
- Single-Layer Fiber Serving (USTC): For standard applications requiring smooth winding and basic protection.
- Double-Layer Fiber Serving (UDTC): For enhanced durability and electrical strength.
- Bondable Fiber Serving (UDATC/UDHTC): For forming self-bonding coils, reducing the need for additional structural components.
Why Choose Served Litz Wire for High-Frequency Applications?
1. How Does Served Litz Wire Reduce the Skin Effect?
The skin effect causes high-frequency currents to concentrate on the surface of a conductor, increasing resistance and energy loss. Served litz wire mitigates this issue by using multiple individually insulated strands, which distribute the current evenly across the entire cross-section of the wire. This leads to lower resistance and improved efficiency in high-frequency circuits.
2. Does Served Litz Wire Offer High Durability?
Yes, the protective layer of nylon or silk significantly enhances the wire’s durability by preventing damage during winding and protecting the enamel coating on the individual strands. This makes it ideal for applications where the wire is subjected to mechanical stress or repetitive motion.
Technical Specifications of Served Litz Wire
Feature | Specification |
Strand Diameter | 0.020mm to 0.60mm |
Number of Strands | From 2 to 36,000 |
Serving Materials | Nylon, Natural Silk, Bondable Fiber |
Thermal Class | 155°C, 180°C, 200°C, 220°C |
Cross-Section Area | Less than 50mm² |
Overall Diameter | 0.20mm to 10mm |
Applications of Served Litz Wire
1. Transformers and Inductors
Served litz wire is widely used in high-frequency transformers and inductors, where its ability to reduce losses caused by the skin effect ensures efficient energy transfer. The served layer also enhances the wire’s electrical strength, making it suitable for high-frequency litz wire applications.
2. Wireless Battery Chargers
In wireless charging systems, served litz wire plays a critical role in minimizing energy losses and maintaining high efficiency. Its flexibility and durability make it ideal for compact, high-performance designs.
3. Solar Inverters
For solar inverters, served litz wire offers excellent heat resistance and electrical performance, ensuring reliable operation even under continuous load.
How Does Served Litz Wire Compare to Unserved Litz Wire?
Feature | Unserved Litz Wire | Served Litz Wire |
Mechanical Protection | Minimal | Enhanced |
Ease of Winding | Moderate | High |
Surface Protection | None | Smooth and Durable |
Durability | Standard | Superior |
Customization Options for Served Litz Wire
To meet specific application requirements, served litz wire can be customized in several ways:
- Serving Material: Choose from nylon, natural silk, or bondable fibers.
- Strand Diameter: Available in sizes ranging from 0.020mm to 0.60mm.
- Thermal Ratings: Options include 155°C, 180°C, 200°C, and 220°C.
These customization options ensure that served litz wire is always the optimal wire for your application.
The Role of Nylon and Silk in Served Litz Wire
1. Why is Nylon Used in Served Litz Wire?
Nylon provides excellent mechanical strength and flexibility, making it an ideal choice for applications involving repetitive motion or mechanical stress. Its ability to resist wear and tear ensures long-term reliability.
2. What are the Benefits of Natural Silk?
Natural silk offers a smooth finish and high thermal resistance, making it suitable for applications requiring precision and durability. Its use in silk served litz wire ensures superior performance in demanding environments.
Advantages of Served Litz Wire
1. High Flexibility
The serving material, combined with the inherent flexibility of litz construction, allows for easy handling and installation, even in complex designs.
2. Improved Winding Performance
The smooth surface of served litz wire reduces friction during the winding process, ensuring consistent and reliable coil formation.
3. Enhanced Electrical Strength
The serving layer protects the insulation on the individual strands, ensuring better performance in high-frequency and high-voltage applications.
Conclusion: Why Served Litz Wire is the Future of High-Frequency Applications
Served Litz Wire combines the advantages of litz wire with enhanced mechanical and electrical properties, making it the ideal choice for high-frequency applications. Its ability to reduce skin effect losses, protect against mechanical stress, and provide superior insulation ensures reliable performance across a wide range of industries.For manufacturers and engineers looking for high-quality wire products, served litz wire offers a proven solution that meets the demands of modern electrical systems. Contact New England Wire Technologies or other litz wire manufacturers today to explore custom solutions for your specific needs.
Why Choose Us
China’s Role in High-Tension Enameled Wire Manufacturing
As a global leader in enameled wire production, China provides high-quality high-tension winding wires tailored to international standards. Chinese manufacturers leverage advanced production techniques to ensure superior mechanical strength, insulation properties, and consistency in wire processing.
Key Manufacturing Strengths
State-of-the-Art Facilities: Equipped with precision metallurgy and automated insulation coating technologies.
Strict Quality Control: Compliance with JIS, IEC, and NEMA standards ensures high-performance output.
Competitive Pricing: Cost-effective solutions without compromising quality.
Customization Capabilities: Tailored wire specifications to meet diverse industry requirements.
Conclusion
High-tension enameled winding wires represent a crucial component in precision electrical applications. With advancements in tensile strength, conductivity, and insulation properties, these wires provide superior reliability and efficiency. As a leading global supplier, China continues to drive innovation and quality in high-tension enameled wire manufacturing, ensuring the highest industry standards for diverse technological applications.
Frequently Asked Questions
1. What is the primary advantage of high-tension enameled winding wire?
High-tension enameled winding wire offers significantly higher tensile strength compared to standard copper wire, reducing breakage risks in high-precision applications.
2. How does high-tension wire compare to pure copper wire in conductivity?
While high-tension wire has slightly lower conductivity than pure copper (ranging from 77% to 95%), it compensates with superior mechanical strength and durability.
3. What industries commonly use high-tension enameled wires?
These wires are widely used in electro-acoustic applications, telecommunications, mobile devices, and sensor technologies.
4. Why is China a leading manufacturer of high-tension enameled wire?
China’s advanced manufacturing capabilities, strict quality control, and cost-efficient production processes make it a top supplier in the global market.
5. Can high-tension enameled wire be customized for specific applications?
Yes, manufacturers offer tailored solutions with varying tensile strengths, insulation grades, and bonding methods to meet specific industrial requirements.
Why Choose Us
Enamelled Wires Factory Directly
As an established leader in the production of enamelled wires, we provide top-quality enamelled copper and aluminium wires from the largest and most advanced facility in China. Our patented system ensures seamless monitoring of production processes, guaranteeing the exceptional quality of our enamelled wires.


Many Years of Know-how as a Producer of Enamelled Wires
Leverage our extensive experience as a leading producer of enamelled wires. Operating from the largest and most advanced facility in China, we provide enamelled wires of superior quality. Our commitment to continuous investment in cutting-edge machinery and ongoing innovation in our research and development department ensures that we deliver products that enhance your processes and drive inspiration.
Individual Enamelled Wires Matching Your Requirements
As a producer of enamelled copper and aluminium wires, we tailor our products to meet your specific project needs. For suitable volumes, we offer customized enamelled wires from our extensive range. Our production process involves close collaboration between our sales team, application technology experts, and you, ensuring optimal results for your requirements.

Frequently Asked Question
We have ISO9001,ISO14001,IATF16949 and UL certificates.
We are a factory.
We have a special QC department with 15 inspection personnel. Quality inspection team including incoming material, process and finished product inspection
Enamelled wires are available in insulation classes F-155, H-180, and C-200, which indicate their maximum operating temperatures in degrees Celsius
The temperature ratings typically range from 130°C to 220°C, depending on the insulation class and specific application requirements.
Enamelled aluminium wires are lighter and less expensive than copper wires but have slightly lower conductivity. Copper wires, on the other hand, offer higher conductivity and better mechanical strength but are heavier and more costly
Enamelled aluminium wires are ideal for use in large motors, transformers, and other applications where weight reduction is crucial without significantly compromising conductivity.
Enamelled copper wire is preferred in industries requiring high conductivity, such as in electronics, small motors, and applications where space is limited due to copper’s superior conductivity and strength.
Yes, we can customize enamelled wires to meet project-specific requirements, including different sizes, insulation types, and performance specifications.
Enamelled CCA Wire, Enamelled Aluminum Wire, Enamelled Copper Wire