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Data Book

Ferrites and Accessories

  • RM, PQ-, PM, EP, EPX, EPO, P, E, ELP, EQ, ER, ER planar, ETD, EFD, EV, U and UI cores, P core halves, ring and double-aperture cores, ferrit polymer composites, ferrite materials, accessories
  • Ferrite materials for inductors for resonant circuits, line anttenuation and filters, broadband transformers and EMC applications, power transformers and chokes as well as inductive proximity switches
  • Application and processing notes
  • General technical information, terms and definitions

Product Catalog Ferrites

Edition 01.17, 687 pages, English

Product Briefs

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Product Brief

Ferrites and Accessories
Distributed Air Gaps in Ferrite Cores – E, EQ, ER, ETD, PM, PQ Cores

Single air gaps are a common technique to delay the core saturation and to increase the power handling capability. However, a single large air gap leads to a high fringing flux effect.

  • EPCOS offers a core manufacturing technique of distributed air gaps that significantly reduces the fringing flux effect in order to reduce electromagnetic emissions and heating.
  • This technical solution is available or may be manufactured for E, EQ, ER, ETD, PM and PQ cores
  • Distributed air gaps are used in the design of power chokes and flyback converters.
  • EPCOS is the first manufacturer of ferrite cores with distributed air gaps to provide the marketplace with an economical solution focussing on higher efficiency and downsizing.

Edition 06.17, 4 pages, English