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What is the difference between nickel-zinc ferrite cores and manganese-zinc ferrite cores?

April 26, 2017cores difference Ferrite nickel-zinc

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What is the difference between nickel-zinc ferrite cores and manganese-zinc ferrite cores?

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Nickel-zinc [Ni-Zn] is used in applications with frequencies of 2 MHz and higher, and require low permeability. When permeability is increased in Ni-Zn cores, the Néel [similar to Curie] temperature decreases. Manganese-zinc [Mn-Zn] is used in applications where operating frequencies are up to 5 MHz and require high permeability. Mn-Zn cores offer permeability up to 20,000 while maintaining a relatively high Néel temperature.