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Standards Development
This part of IEC 63093 specifies the dimensions that are of importance for mechanical interchangeability for a preferred range of balun-cores made of ferrite, as well as the effective parameter values to be used in calculations involving them. It also gives guidelines on allowable limits of surface irregularities applicable to both uncoated and coated balun-cores in accordance with the relevant general specifications.
The specifications contained in this document are useful in negotiations between ferrite core suppliers and customers about surface irregularities.
Balun cores are a kind of double aperture ferrite cores, they are used to manufacture broadband signal transformer, balun devices, couplers and divider, radio frequency impedance matcher and common mode EMI filters, which are widely used in radio frequency and broadband communication, video appliances and medical equipment, etc. Balun-core has unique applications, So far there is no relevant IEC standard for balun-cores. With manufacturers producing products with a wide range of specifications, the market urgently needs standards on balun-cores. Developing this standard is conducive to the establishment of a more perfect standard system for ferrite cores, to improve the technical and quality level of related products, and to promote their production and trade.
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