CPT traditional standard wire is our affordable wire series, cut and pre-tinned. Typically used for internal wiring in Hearing Instruments and IEM's. Based on pure copper wire with a single layer of polyurethane enamel.

  • Traditional standard wires
  • Made from pure copper
  • Polyurethane enamel
  • Available in Litz and Solid

Litz wires

Litz wires are very flexible, but rather sensitive. Fatigue resistant. Prevents acoustic feed-back. Litz wires are often used for transducers, microphones, and battery springs.

estron offers stranded wires (litz wires) in CPT™, ESW™ and XT-ESW™. All versions are available with short tinning.


Solid wires

Solid wires are very strong but not so flexible. May be difficult to handle in the assembly process of ITEs. May cause acoustic feed-back. Solid wires are often used for trimmers, and volume controls. Some companies also use them for microphones and battery springs.

estron offers single end wires in CPT™ and ESW™.



Material: Pure copper wire

Design: Available in selected designs

Colours: Available in red, blue, natural, green       

Length: Available in several lengths (7mm - 70mm)

Compliance: RoHS, REACH

Short tinning: Available upon request



> CPT™ Litz Application Note

> CPT™ Litz Wire Item Overview

> CPT™ Solid Wire Item Overview