2UEW-H-PI 0.1mm*1500 Kapton Taped Litz Wire For Transformer
This product is a custom-engineered PI taped litz wire, specifically designed for high-reliability and high-voltage transformer applications. The conductor consists of 1,500 individual strands of 0.1mm (38 AWG) solderable polyurethane enameled copper wire, precision twisted together to form a compact, flexible, and high-density bundle. The entire stranded core is then wrapped with a high-performance polyimide (PI) tape, which serves as the primary insulation layer.
·IEC 60317-23
·NEMA MW 77-C
·customized according to customer requirements.
The PI tape offers exceptional electrical and thermal properties. It features extremely high dielectric strength, enabling the wire to withstand high voltages without insulation breakdown. In addition, PI tape provides excellent thermal stability over a wide temperature range, low dielectric loss, superior chemical resistance, and outstanding protection against moisture and mechanical stress. These characteristics make it far more reliable than conventional insulation materials such as polyester or nylon in demanding environments.
This PI taped litz wire is particularly suited for transformers that require high voltage endurance, compact sizing, and enhanced safety margins. Typical applications include high-frequency power transformers, medical power supplies, aerospace and defense electronics, electric vehicle charging systems, and industrial high-voltage converters. In such transformers, the PI tape significantly increases the withstand voltage between windings and between windings and the magnetic core, greatly reducing the risk of arcing or short circuits. Meanwhile, the litz wire construction minimizes AC resistance and skin effect losses at high frequencies, improving overall efficiency and reducing thermal buildup. By using this wire, transformer manufacturers can achieve higher power density, improved electrical safety, and long-term operational reliability under harsh conditions.
Name: Taped Litz wire(180/class)
Spec: 0. 10X 1500
Model:2UEW-H-PI(N)
Tape Name:PI(N)
Tape Spec:0.025x15
|
Item |
Tech requirement |
Sample 1 |
Sample 2 |
|
Single wire Diameter mm |
0.107-0.125 |
0.110-0.113 |
0.110-0.113 |
|
conductor |
0.10±0.003 |
0.098-0.10 |
0.098-0.10 |
|
O. D. mm |
≤5.88 |
5.36-5.70 |
5.36-5.68 |
|
Resistance Ω/m |
≤0.001587 |
0.001476 |
0.001484 |
|
Dielectric strength v |
≥6000 |
11500 |
12800 |
|
Pitch(mm) |
65±10 |
65 |
65 |
|
No. Of strands |
1500 |
60x5x5 |
60*5*5 |
|
Tape Overlap % |
≥50 |
54 |
54 |
|
Winding |
NO crack |
ok |
ok |
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.














