Profiled Litz Wire


Profiled (mechanically shaped) litz wires allow optimal utilization of available winding space due to the superior filling factor of  rectangular or square litz wire cross sections. In comparison to a standard round cross section construction, profiled litz wire can increase the filling factor up to 20%.

The design advantages of profiled litz wire can only be fully realized using products with consistent and precise dimensions. This dimensional stability is only possible with exact control of each process step.

Features and benefits of profiled litz wires

  • Increased filling factor of up to 20 %
  • Constant winding performance requiring tight dimensional tolerance and good flexibility
  • Profiled dimensions to customer specification
  • Profiling also possible with outer insulation

Technical properties of profiled litz wires

Increasing filling factor by profiling

Available insulation materials of profiled litz wires

For served litz wire:


For taped litz wire:

Polyester (PET)

Polyethylene Naphthalate (PEN)

Polyimide (PI)


Smallest sizes (width x height) 1.2 x 1.2 mm
Biggest sizes 15.0 x 15.0 mm
Ratio (width x height) 1:1.7 mm
Tolerance (±) 0.1 mm
Diameter of single wires 0.050 - 0.500 mm

Other dimensions and materials on demand.


  • Wireless charging
  • Induction cooking hobs
  • HF transformers
  • HF transducers
  • E-motors