Miniature Flex-Coils

Flex-Coils combine antenna coils and flexible or rigid-flex circuits in one rugged package. Coils with wire as small as AWG 50 allow high sensitivity in a flat laminated package, or choose an etched coil for total thickness of less than 0.010 inch (0.25 mm). Polyimide insulation provides high dielectric strength, flexibility and protection for the antenna. When integrated with a flex or rigid-flex circuit the package improves reliability, reduces parts count, simplifies assembly and reduces rejects.

Flex-Coils can be designed in round, rectangular, oval or other shapes to meet your packaging requirements. They can be supplied flat or pre-formed to precise dimensions. They are ideal for implantable medical devices, high precision position sensing and non-destructive test machinery. 

Miniature Flex Coils


  • By uniting coils and circuitry into one component, Flex-Coils improve reliability, simplifies assembly, and allows for a more compact package
  • Encapsulated coils and connections make Flex-Coils less prone to breakage
  • Precise and repeatable coil location and orientation improve system performance
  • Flex-Coils are very adaptable and can be incorporated into any flex circuit design or layer count



Maximum outside diameter


Minimum inside diameter


Wire gauge


Inductance tolerance


Resistance tolerance



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