High frequency litz wire
Litz wire 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.
| Benefits of litz wire for high frequency applications | Applications |
• Cost-effective design | • RF transformers |
• Resistance or frequency -related construction | • Chokes |
• Increased tensile strength utilizing additional strain relief | • Medical application |
• Sensors | |
• Ballasts | |
Benefits of litz wire for heating applications | • Switching power supplies |
- Electric vehicle components | |
• Precise resistance-related manufacturing |
|
• Very broad field of application (drying, heating, warming up) | |
• Resilient base materials |
Properties of litz wires
For high frequency applications | For heating applications | |||
| Conductivity | high | medium | ||
| Resistance | medium | high | ||
| Tensile strength | low - medium | high | ||
| Looping behavior | low | high | ||
| Splicing | medium | high | ||
| Bending cycle behavior | high | high |
Litz wire construction for high frequency applications
The construction of a litz wire product depends upon the number of individual wire strands and the diameter of each wire. In general, our process can bunch a maximum of 60 individual wire strands in one operation. Litz wire constructions requiring more than 60 strands must be produced in multiple operations using sub-bundles twisted together. Example: Litz wire of 600 strands of 0.10 mm conductor could be constructed using 24 x 5 x 5 of 0.10 mm wire.
Typical connection technologies are soldering, thermal compression welding, ultrasonic welding, resistance welding and flame brazing.
| Dimensionen | Typical lenth of lay | ||
| Diameter of single wires 0.010-0.500 mm | Single-stage: 2 - 26 mm | ||
| Number of single wires 2-25,000 pcs | Multi-stage: 20 - 60mm | ||
| Outer diameter of litz wires 0.095-10,0 mm |
| Connecting Technologies | |||||||||||||||||||||||||||||||||||
|
|
"Details Connection Technologies for Litz Wires"