EMI Cores

KEMET EMI Cores provide high-frequency noise suppression in electronic circuits. There are two ferrite material options for KEMET EMI Cores, namely Nickel-Zinc (NiZn) and Manganese Zinc (MnZn). The NiZn core material is typically effective for theMHz band range (FM-band frequencies), whereas the MnZn core material is typically effective for the kHz band range (AM-band frequencies). The MnZn core material offers a lower resistance compared to the NiZn and hence adequate insulation is required before use (recommended to measure the actual frequency-range effectiveness in the target application). The effective frequency range varies depending on core shape, size, and the number of turns.

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Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
Product
Inside Diameter
Outside Diameter
Inside Length
Outside Length
Outside Width
Inside Height
Outside Height
Packaging
Core Material
KEMET Ferrite Cable Cores 4.8x2.4mm 300MHz Ni-Zn Bare
Datasheet
30,985In Stock
Min.: 1
Mult.: 1

B-20L Round Cable Cores Solid 2.4 mm 4.8 mm 4.8 mm Bulk Nickel Zinc
KEMET Ferrite Cable Cores Ferrite Bead Core EMI 1mm
Datasheet
52,537In Stock
Min.: 1
Mult.: 1

B-20L Round Cable Cores Solid 1 mm 2.5 mm 1.2 mm Bulk Nickel Zinc
KEMET Ferrite Cable Cores 56x2mm Split Core Ni-Zn for Flat Cable
Datasheet
366In Stock
Min.: 1
Mult.: 1

ESD-FPD-1 Flat Ribbon Cable Cores Split 56 mm 68 mm 12.7 mm 2 mm 10 mm Tray Nickel Zinc
KEMET Ferrite Cable Cores Ferrite Bead Core EMI 0.8mm
Datasheet
27,395In Stock
Min.: 1
Mult.: 1

B-20L Round Cable Cores Solid 0.8 mm 3.4 mm 4.4 mm Bulk Nickel Zinc
KEMET Ferrite Cable Cores Ferrite Bead Core EMI 1.6mm
Datasheet
48,616In Stock
Min.: 1
Mult.: 1

B-20L Round Cable Cores Solid 1.6 mm 4.4 mm 7 mm Bulk Nickel Zinc
KEMET Ferrite Cable Cores Ferrite Bead Core EMI 2.4mm
Datasheet
25,121In Stock
80,000On Order
Min.: 1
Mult.: 1

B-20L Round Cable Cores Solid 2.4 mm 4.8 mm 4.8 mm Bulk Nickel Zinc
KEMET Ferrite Cable Cores Split Core Flat 25.4mm Cable
Datasheet
961In Stock
Min.: 1
Mult.: 1

ESD-FPD Flat Ribbon Cable Cores Split 25.4 mm 37 mm 12.7 mm 2.6 mm 10 mm Bulk Nickel Zinc
KEMET Ferrite Cable Cores Ferrite Bead Core EMI 4.8mm
Datasheet
4,865In Stock
15,000Expected 2027/03/08
Min.: 1
Mult.: 1

B-20L Round Cable Cores Solid 4.8 mm 9.7 mm 4.2 mm Bulk Nickel Zinc
KEMET Ferrite Cable Cores Split Core Flat 25.4mm Cable
Datasheet
64In Stock
1,600On Order
Min.: 1
Mult.: 1

ESD-FPD-1 Flat Ribbon Cable Cores Split 25.4 mm 37 mm 12.7 mm 2.6 mm 10 mm Bulk Nickel Zinc
KEMET Ferrite Cable Cores Split Core Flat 48.3mm Cable
Datasheet
251In Stock
240Expected 2027/01/18
Min.: 1
Mult.: 1

ESD-FPD Flat Ribbon Cable Cores Split 48.3 mm 60 mm 12.7 mm 2 mm 10 mm Bulk Nickel Zinc
KEMET Ferrite Cable Cores 68.6x2mm Split Core Ni-Zn for Flat Cable
Datasheet
131In Stock
Min.: 1
Mult.: 1

ESD-FPD Flat Ribbon Cable Cores Split 68.6 mm 80 mm 12.7 mm 2 mm 10 mm Tray Nickel Zinc
KEMET Ferrite Cable Cores Split Core Flat 68.6mm Cable
Datasheet
150In Stock
Min.: 1
Mult.: 1

ESD-FPD-1 Flat Ribbon Cable Cores Split 68.6 mm 80 mm 12.7 mm 2 mm 10 mm Bulk Nickel Zinc
KEMET Ferrite Cable Cores 48.3x2mm Split Core Ni-Zn for Flat Cable
Datasheet
115Expected 2027/02/25
Min.: 1
Mult.: 1

ESD-FPD-1 Flat Ribbon Cable Cores Split 48.3 mm 60 mm 12.7 mm 2 mm 10 mm Tray Nickel Zinc
KEMET Ferrite Cable Cores 4.8x2.4mm 300MHz Ni-Zn Coated
Datasheet
Non-Stocked Lead-Time 29 Weeks
Min.: 30,000
Mult.: 5,000

B-20L Round Cable Cores Solid 2.4 mm 4.8 mm 4.8 mm Bulk Nickel Zinc
KEMET Ferrite Cable Cores Split Core Flat 56mm Cable
Datasheet
Non-Stocked Lead-Time 23 Weeks
Min.: 1
Mult.: 1

ESD-FPD Flat Ribbon Cable Cores Split 56 mm 68 mm 12.7 mm 2 mm 10 mm Bulk Nickel Zinc