Basic Litz Wire


Litz wire made of enameled magnet wires is either used for high frequency or heating related applications. Ultra fine litz wires provide solutions for both technologies regardless of frequency or impedance range. Electrical, mechanical and cost aspects need to be considered carefully during the design phase.

Features and benefits of litz wire for high frequency applications

  • Reduction of high frequency losses
  • Cost effective design
  • Resistance or frequency related construction
  • Increased tensile strength by using additional strain relief
  • Flexibility for high conductor cross sections

Features and benefits for heating applications

  • Precise resistance related manufacturing
  • Very broad field of application (drying, heating, warming up)
  • Different conductor materials available with excellent mechanical properties
  • High thermal stability

Technical properties of basic litz wires

Properties For high frequency applications For heating applications
Conductivity high medium
Resistance medium high
Tensile strength low - medium high
Looping behaviour low high
Splicing medium high
Bending cycle performance high high
Typical conductor material copper copper, alloys
Typical wire insulation polyurethane, polyester-imide polyurethane
Diameter of single wire 0.010 - 0.700 mm
Number of single wires 2 - 25,000 pcs
Outer diameter of litz wire 0.095 - 20.00 mm
Typical length of lay:
Single step
Multiple step

2.00 - 26.00
20.00 - 60.00



  •  HF transformers
  • Chokes
  • Switching power supplies
  • Hearing aids
  • Sensors
  • Ballasts
  • Resistance wires for heating applications
  • Motors