MOST POPULAR

ESWTM Litz - Extra Strong Wires

The ESW litz wires were invented by our founders Lars Elgaard and Allan Sorrig, who revolutionised the wires business with the flexible and strong litz wires.

  • High tech design.
  • Double coated silver-plated copper wire.
  • Exellent flexibilty, softness, and fatigue resistance.

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ESW™ Litz Wires:
Exceptional Performance for Quality Instruments

 

Our most popular wires, ESW litz wires, are pre-cut and pre-tinned high-performance solutions designed for high-quality instruments. Made from double-coated silver-plated copper wire, the polyurethane and nylon top enamel enhance mechanical performance during mounting and improve corrosion resistance.

A combination of premium materials and estron's unique technology makes ESW litz wires outstanding. They exhibit excellent flexibility, softness, and fatigue resistance. The precise tinning of 0.02" at each end ensures ease of handling during assembly.


Key Features:

  • High-Tech Design: Engineered for high-quality applications.
  • Material Composition: Silver-plated copper with double enamel, polyurethane, and nylon coating.
  • Configurations Available: Offered in both litz and solid wire forms.
  • Safety Compliance: Free from cadmium, nickel, and beryllium.


ESW litz wires are highly flexible but also sensitive, offering fatigue resistance that prevents acoustic feedback. They are commonly used in transducers, microphones, and battery springs.

estron provides stranded wires (litz wires) in CPT™, ESW™, and XT-ESW™ variants, all available with short tinning options.

Solid Wires: While strong, solid wires are less flexible and can be challenging to handle during assembly. They may also cause acoustic feedback. Solid wires are often utilized for trimmers and volume controls, and some companies use them for microphones and battery springs.

 




Bending Performance

ESW litz wires last up to three times longer in bending tests compared to traditional CPT litz wires. The CPT litz often breaks after just a few bends. During soldering, the melted solder can flow back and melt part of the enamel, forming the well-known trumpet shape - a sensitive area where the wire meets the solder, making it prone to bending and corrosion.


In contrast, when ESW litz wires break, they do so above the solder joint, leaving a portion of the wire intact on the solder pad. Bending tests confirm that ESW litz wires outperform traditional CPT litz wires by up to three times.

 

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Specifications:

  • Material: Silver-plated pure copper wire
  • Design: Available in selected configurations
  • Colours: Red, blue, yellow, green, black, and skin colour with and without tracer
  • Length: Various lengths (5mm - 100mm)
  • Compliance: RoHS and REACH compliant
  • Short Tinning: Available upon request

 

 




Different litz wires for different scenarios
Different types of estron litz wires

SWH™

Reduce production costs, get more reliable products

XT-ESW™

Highest performance - thinnest and strongest

CPT™

Affordable series



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