High frequency litz wire is either used for 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
• Increased tensile strength by using additional strain relief
• Medical application
Benefits of litz wire for heating applications
• Switching power supplies
• Resistance wires for heating applications
• Precise resistance-related manufacturing
• Very broad field of application (drying, heating, warming up)
• Resilient base materials
Properties of litz wires
For high frequency
|Tensile strength||low - medium||high|
|Bending cycle behavior||high||high|
Construction of 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 construed using 24 x 5 x 5 x 0.10 mm.
Typical connection technologies are soldering, thermal compression welding, ultrasound welding, resistance welding and flame brazing.
|Typical length 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|