Extruded Litz Wires

General

Extruded coatings applied to high frequency litz wires support increased flexibility, mechanical robustness, resistance to chemical substances, as well as electrical insulation. The flex life performance of extruded litz wire is improved considerably in comparison to standard constructions. Extrusion materials, wall thickness tolerance, and litz wire construction details can be selected and combined for optimal performance in a wide range of applications.


Features and benefits of extruded litz wires

  • High resistance to mechanical stress
  • Excellent flexibility
  • Good resistance against oil and grease
  • High dielectric strength
  • Solderable above 410°C

Technical properties of extruded litz wires

Extrusion materials

PA-F PA-M PA-T PB-A PB-B TPE-E TPE-F TPE-S
mod.
Polymide
mod.
Polymide
mod.
Polymide
Polyether
Block
Amide
Polyether
Block
Amide
Polyester-
Elastomer
Polyester-
Elastomer,
flame
retardant
Polyester-
Elastomer
Melting temperature, °C 170 - 180 175 - 185 170 - 180 155 - 165 165 - 175 205 - 230 205 - 230 125
Max. usage temperature, °C 90 90 115 100 120 140 140 90
Min. breakdown voltage, kV * 4 3 3 3 3 3,5 3 3
Color transparent transparent transparent transparent transparent transparent white white
* at wall thickness of 0.2mm

Dimensions

Diameter of sigle wires 0.032 - 0.50 mm
Outer diameter of litz wire 0.5 - 3.5 mm

Applications

  • Resistance wires for heating applications
  • Smart Textiles
  • Hearing Aids