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FRM ferrite core

Stan Zurek, FRM ferrite core, Encyclopedia-Magnetica.com, {accessed 2020-06-01}

FRM ferrite core - a type of frame core produced by Ferroxcube.1)

There are several types in the FRM core family:

All these look similar, with the outer rectangular frame designed to accept the inner cuboidal bar. Compared to other cores with similar effective area the FRM cores are designed to have longer relative winding width. Thus, the bobbin can have multiple sections and it is made in SMD version.

As of 2015 the FRM cores were offered in two material grades: 3C90 and 3C91.2)3)

FRM20 core

by S. Zurek, E. Magnetica, CC-BY-3.0

FRM20 core, with bobbin

by S. Zurek, E. Magnetica, CC-BY-3.0

FRM20 core, assembled

by S. Zurek, E. Magnetica, CC-BY-3.0

See also


1), 2) Ferroxcube, Soft Ferrites and Accessories, Data Handbook, 2013
3) Ferroxcube, Product Selection Guide, 2013
frm_ferrite_core.txt ยท Last modified: 2019/06/03 18:29 (external edit)

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