2USTC-F 0.03mmx10 Nylon Served litz wire Silk Covered Litz Wire
At the heart of our silk covered litz wire is the use of ultra-fine enameled copper wire, which has a diameter of only 0.03 mm. This ultra-fine wire is carefully crafted from 10 strands of ultra-fine wire to ensure optimal flexibility and minimal skin effect. The unique construction of our litz wire allows for superior conductivity, reducing energy losses and increasing the overall efficiency of transformer windings.
The nylon covered stranded wire is highly versatile and an excellent choice for windings in a wide range of small precision transformers. Whether you are designing a transformer for audio applications, telecommunications or power electronics, the silk covered litz wire can meet your specific needs. The wire’s light weight and small size allow for efficient winding, allowing manufacturers to create smaller, more efficient transformers without compromising performance. This is particularly beneficial in industries where space is at a premium and every millimeter counts.
In addition to superior electrical performance, our silk covered Litz wire is designed with durability in mind. The nylon yarn covering provides increased protection from environmental elements, ensuring the wire maintains its integrity even in harsh conditions. This durability means your transformer windings will last longer, reducing the need for frequent replacement and maintenance. By choosing our Litz wire, you are investing in a product that not only meets, but exceeds industry quality and performance standards.
Item |
Unit |
Technical requests |
Reality Value | |
Conductor Diameter |
mm |
0.035-0.044 |
0.037 |
0.039 |
Single wire diameter |
mm |
0.03±0.002 |
0.028 |
0.030 |
O.D. |
mm |
Max. 0.21 |
0.16 |
0.18 |
Resistance (20℃) |
Ω/m |
Max.2.827 |
2.48 |
2.49 |
Breakdown Voltage |
V |
Min.400 |
1700 |
1900 |
Pitch |
mm |
16±2 |
√ |
√ |
Pinhole |
Max. 20 faults/6m |
6 |
4 |
5G base station power supply

EV Charging Stations

Industrial Motor

Maglev Trains

Medical Electronics

Wind Turbines






Founded in 2002, Ruiyuan has been in the manufacture of enamelled copper wire for 20 years.We combine the best manufacturing techniques and enamel materials to create a high-quality, best-in-class enameled wire. The enameled copper wire lies at the heart of technology we use every day – appliances, generators, transformers, turbines, coils and much more. Nowadays, Ruiyuan has the global footprint to support our partners in marketplace.

Our Team
Ruiyuan attracts many outstanding technical and management talents, and our founders have built the best team in the industry with our long-term vision. We respects the values of each employee and provides them with a platform to make Ruiyuan a great place to grow a career.



