Direct  Electronics manufactures  Inductance  Air Core Coils ,The series is lead-free and RoHS compliant.  .is unaffected by the current it carries. This contrasts with the situation with coils using ferromagnetic cores whose inductance tends to reach a peak at moderate field strengths before dropping towards zero as saturation approaches. It features high Q and high frequency for applications of Set Up Box, CATV.

Selection guide of  Indutors and Coils data sheet, and detail applications,please contact our sales for more information , or download PDF datasheet at    http://www.4-direct.com/inductor/inductor-ac.htm