What is Litz Wire?
The term “Litz” is derived from the German "litzendraht" meaning woven wire. Litz wire is constructed of individually insulated magnet wires bunched or braided together in a uniform pattern so that each strand takes all possible positions in the cross section of the overall conductor.

Litz wire is a type of cable formed by combining multiple strands of thin insulated enameled wire together side by side. It is used to carry high frequency currents as the insulated strands each carry a portion of the current and prevent losses due to the skin effect. Litz wire is commonly found in radio frequency (RF) applications, and high frequency power circuits such as induction heaters and Tesla Coils.

The strands in litz wire are typically twisted together either as a single bunch, or as multiple bunches twisted to form a large cable. By twisting the wires together it helps to control the magnetic fields around the wires and keep the currents flowing evenly.

What is the benefit of Litz Wire?
Decreased occurrences of “hot spots”
Reduction of AC power loss
Minimized eddy current losses

How to solder litz wire?
It can be very difficult to solder litz wire as they can contain thousands of individually insulated strands. It is necessary to remove this insulation before soldering can take place. This can be done by first burning the end to be soldered and then cleaning of the burned insulation with wire wool. Doing this without breaking the fine strands or leaving some of them uncleaned can be quite challenging.

The best way is to use a hot solder bath as this can both burn off the insulation and add the solder. The solder bath must be quite hot and it works best if the litz wire is first dipped into flux to help the solder to stick.

LITZ Wire applications include:
Antennas
High-frequency power converters
Grounding
Electromagnetic induction (or heating)
Chargers for medical devices
Radio transmitters
Sensor wiring
Wireless power systems
Acoustic telemetry (also known as sonar)
Ultrasonic devices
Wind turbines
Wire coils
Hybrid vehicles
Chokes (or high-frequency inductors)
Electric chargers for motor vehicle applications
Motors, including:
Linear motors
Stator windings
Generators
Transformers
Communications
Radio
Transmission

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