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High Permeability Cores

The "FS" Series of Amorphous cores have permeabilities of about 100,000 at 10 kHz and retain their high permeability over a wide range of frequencies. They provide lower core loss than corresponding ferrite cores. The "FS" series cores are useful for Pulse Transformers, Input Chokes, and Common Mode Filters, among other applications.

Please feel free to contact us to discuss your application and to receive detailed information on the product of interest. For further information please contact the Advanced Materials Division of Toshiba America Electronic Components, Inc. For other product details,  please visit our affiliate Toshiba Materials Co., Ltd.

Product Guides
Description O.D. (mm) I.D. (mm) Height (mm) Mean Flux Path Length Cross Sectional Area AL Value (µH/n2)* Case Material
FS 12x8x4.5 13.8 ± 0.2 mm 6.8 ± 0.2 mm 6.6 ± 0.2 mm 34.1 mm 6.75 mm2 27.0 ± 30% Black PET UL 94V-0
FS 18x12x4.5 19.8 ± 0.2 mm 10.8 ± 0.2 mm 6.6 ± 0.2 mm 47.1 mm 10.13 mm2 27.0 ± 30% Black PET UL 94V-0
FS 21x14x4.5 22.8 ± 0.2 mm 12.8 ± 0.2 mm 6.6 ± 0.2 mm 55.0 mm 11.81 mm2 27.0 ± 30% Black PET UL 94V-0
FS 26x16x4.5 29.0 ± 0.5 mm 13.5 ± 0.5 mm 7.5 ± 0.5 mm 66.0 mm 16.88 mm2 32.1 ± 30% Black PBT
FS 26x16x9.5 28.7 ± 0.5 mm 13.6 ± 0.5 mm 12.2 ± 0.5 mm 66.0 mm 35.63 mm2 67.9 ± 30% Black PBT
·Before creating and producing designs and using, customers must also refer to and comply with the latest versions of all relevant TOSHIBA information and the instructions for the application that Product will be used with or for.