Industry standard EER core sizes include: EER28/14, EER28/17, EER35, EER40, EER42, EER48, EER54 Differential inductors and power transformers are typical applications of Magnetics EER cores. The round centerpost offers the advantage of a shorter winding path length than the winding around a square centerpost of equal area.
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How to Order ETD CoresĮER cores (sometimes referred to as ER cores) are an economical choice for transformers and inductors. Hardware: ETD core accessories are available. Industry standard ETD core sizes include: ETD29, ETD34, ETD39, ETD44, ETD49, ETD54, ETD59 Typical applications of ETD cores include differential inductors and power transformers. Also, dimensions are optimized for power transformer efficiency. ETDs offer a round centerpost for minimum winding resistance. How to Order EFD CoresĮTD cores are an economical choice for transformers or inductors. Hardware: EFD core accessories are available. Industry standard EFD core sizes include: EFD10, EFD12, EFD15, EFD20, EFD25, EFD30 EFD cores are ideal for compact transformers and inductor applications. The optimized cross-sectional area is ideal for very flat compact transformer applications. The industry standard economical flat design of EFD cores offers excellent space utilization for transformers or inductors. Printed circuit E core bobbins are available for low profile mounting. E cores can be mounted in different directions and, if desired, provide a low profile. Hardware: E core bobbins for different cross sections are available. Industry standard E core sizes include: E65, E80, E100 Typical applications for E cores include differential, power and telecom inductors, as well as broadband, power, converter and inverter transformers. E cores can be pressed to different thicknesses, providing a selection of cross-sectional areas.
Lamination size E cores are available to fit commercially offered bobbins previously designed to fit the strip stampings of standard lamination sizes. E cores do not, however, offer self-shielding.
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E, I CoresĮ cores are less expensive than pot cores, and have the advantage of simple bobbin winding plus easy assembly.
Other reference materials including technical bulletins, application notes and white papers are also available for download. For more information on Ferrite Shapes, visit the Technical Documents library for the Ferrite Core Catalog.
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