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Ferrite may refer to:

  • Ferrite (iron), iron or iron alloys with a body centred cubic crystal structure.
  • Ferrite (magnet) (e.g. Fe3O4 or BaFe12O19), ferrimagnetic ceramic materials used in magnetic applications.
  • Ferrite bead, a component placed on the end of a data cable to reduce interference.
  • Ferrite core, a structure on which the windings of electric transformers and other wound components are formed.
  • Calcium aluminoferrite, Ca2(Al,Fe)2O5, a mineral found in cements