High-frequency wire with 3-4-5 bundle transposition. 52 standard grades, round and rectangular cross-section, temperature up to 200°C.
We make rectangular litz wire at any volume — while others refuse
We have been researching and producing litz wire for many years. We leverage our expertise and experience to deliver a unique, highly efficient solution — continuously transposed litz wire.
The core of our litz wire is made of self-bonding enameled wire rated for temperatures up to 155°C. We manufacture 52 standard grades with various insulation types and cross-section shapes.
Our work is based on research conducted at the University of Massachusetts under Professor Sullivan and the experience of leading international manufacturers.
Our products are manufactured under the registered technical specification TU 27.32.11-019-59596873-2025, ensuring consistent quality and compliance with stated characteristics.
Contact us for full grade listShaping litz wire into a rectangular cross-section increases winding window fill by up to 20%. More copper in the same envelope — higher power, lower losses.
Why continuously transposed litz wire from Diada-Electro outperforms conventional 7-bundle litz wire
Transposition is the continuous change of each conductor's position inside the bundle along the entire wire length. Conventional litz wire suffers from skin effect and proximity effect (internal and external), reducing efficiency.
Most manufacturers use 7-bundle lay-up where the center conductor never changes position. We use 3-4-5 bundle lay-up that eliminates the inefficient center conductor, increasing winding efficiency.
Shaping litz wire into a rectangular cross-section increases winding window fill by up to 20%. This is critical for compact high-frequency transformers and inductors.
We perform rectangular shaping of litz wire at any volume — from prototypes and small batches to serial production. If you need rectangular litz wire — come to us while others refuse.
Litz wire operates in demanding conditions: high temperatures, vibrations, aggressive environments. We offer a wide range of protective coatings:
PTFE — chemical resistance, up to 230°C. Polyimide — strength, up to 330°C. Arselon — heat resistance up to 400°C. Polypropylene and PET — economical protection.
We also produce litz wire insulated with cast polyethylene and polyurethane — try finding that from other Russian manufacturers.
3-4-5 bundle lay-up without a center conductor — maximum efficiency
Shaping litz wire into rectangular profile at any volume — even small batches and prototypes
Three temperature ranges: 105°C, 155°C, and 200°C — for any operating condition
Standard catalog plus custom production to specification
Manufactured under registered technical specification — guaranteed quality and compliance
Cast polyethylene and polyurethane insulation — try finding this elsewhere
Continuously transposed litz wire is a multi-strand wire for high-frequency applications where each individual conductor constantly changes its position inside the bundle along the entire length of the wire. This eliminates the skin effect and minimizes internal and external proximity effects, increasing winding efficiency.
Most manufacturers use 7-bundle or concentric-layered lay-up where one bundle always remains in the center, reducing current density. We use 3-4-5 bundle lay-up that eliminates the center conductor, ensuring even current distribution and higher efficiency.
We manufacture 52 standard grades of litz wire. They vary by cross-section shape (round and rectangular), temperature rating (up to 105°C, 155°C, 200°C), and insulation type (PTFE, polyimide, polypropylene, Arselon, PET, and combinations). Contact us for the full grade list and datasheets.
Rectangular litz wire is litz wire shaped into a rectangular cross-section. This increases winding window fill by up to 20% compared to round wire, which is especially important for compact high-frequency transformers, inductors, and coils.
We accept orders of any volume, including small batches and single samples for testing. Contact us for pricing and lead times.
Litz wire is used in high-frequency transformers, switch-mode power supplies, induction heaters, wireless power transfer (WPT) systems, EV charging stations, medical equipment (MRI), and other devices operating at frequencies from tens of kHz to several MHz.
Specify the grade, cross-section, length — we will calculate the cost and lead time. Or simply describe your application, and we will recommend the optimal litz wire grade.