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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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Part #

Ferrite Cable Cores Split Core Flat 25.4mm Cable

ESD-FPD-16
KEMET
1: $9.20
2,038In Stock

Mfr. Part No.
ESD-FPD-16

Mouser Part No
80-ESD-FPD-16

KEMET

Ferrite Cable Cores Split Core Flat 25.4mm Cable

Datasheet

2,038In Stock

$9.20

$4.59

$3.95

$3.93

Quote

Min.: 1
Mult.: 1

Ferrite Cable Cores Solid Core Flat 68.6mm Cable

ESD-FPL-50
KEMET
1: $7.08
910In Stock

Mfr. Part No.
ESD-FPL-50

Mouser Part No
80-ESD-FPL-50

KEMET

Ferrite Cable Cores Solid Core Flat 68.6mm Cable

Datasheet

910In Stock

$7.08

$3.57

$2.91

$2.89

Min.: 1
Mult.: 1

Ferrite Cable Cores 56x2mm Split Core Ni-Zn for Flat Cable

ESD-FPD-40-1
KEMET
1: $12.98
366In Stock

Mfr. Part No.
ESD-FPD-40-1

Mouser Part No
80-ESD-FPD-40-1

KEMET

Ferrite Cable Cores 56x2mm Split Core Ni-Zn for Flat Cable

Datasheet

366In Stock

$12.98

$5.91

$5.89

Quote

Min.: 1
Mult.: 1

Ferrite Clamp On Cores 16.5x6x21mm Ni-Zn Snap-on

ESD-SR-100G
KEMET
1: $3.21
1,720In Stock

Mfr. Part No.
ESD-SR-100G

Mouser Part No
80-ESD-SR-100G

KEMET

Ferrite Clamp On Cores 16.5x6x21mm Ni-Zn Snap-on

Datasheet

1,720In Stock

$3.21

$1.50

$1.19

$1.15

Min.: 1
Mult.: 1

Ferrite Cable Cores Ferrite Bead Core EMI 0.8mm

B-20L-34
KEMET
1: $0.459
28,560In Stock

Mfr. Part No.
B-20L-34

Mouser Part No
80-B-20L-34

KEMET

Ferrite Cable Cores Ferrite Bead Core EMI 0.8mm

Datasheet

28,560In Stock

$0.459

$0.252

$0.19

$0.146

View

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings 6.2mm

ESD-R-14A
KEMET
1: $1.14
6,199In Stock

Mfr. Part No.
ESD-R-14A

Mouser Part No
80-ESD-R-14A

KEMET

Ferrite Toroids / Ferrite Rings 6.2mm

Datasheet

6,199In Stock

$1.14

$0.609

$0.453

$0.395

View

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings 13mm

ESD-R-26S
KEMET
1: $5.69
108In Stock
1,400On Order

Mfr. Part No.
ESD-R-26S

Mouser Part No
80-ESD-R-26S

KEMET

Ferrite Toroids / Ferrite Rings 13mm

Datasheet

108In Stock

1,400On Order

$5.69

$3.31

$2.82

$2.10

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings 57x36x20mm Mn-Zn Bare

ESD-R-57S
KEMET
1: $20.39
64In Stock

Mfr. Part No.
ESD-R-57S

Mouser Part No
80-ESD-R-57S

KEMET

Ferrite Toroids / Ferrite Rings 57x36x20mm Mn-Zn Bare

Datasheet

64In Stock

$20.39

$15.46

$13.18

$12.40

View

Min.: 1
Mult.: 1

Ferrite Cable Cores 40x1.5mm Bare Ni-Zn for Flat Cable

ESD-FPL-45-12
KEMET
1: $3.74
363In Stock
720Expected 20/4/2026

Mfr. Part No.
ESD-FPL-45-12

Mouser Part No
80-ESD-FPL-45-12

KEMET

Ferrite Cable Cores 40x1.5mm Bare Ni-Zn for Flat Cable

Datasheet

363In Stock

720Expected 20/4/2026

$3.74

$2.22

$1.61

$1.53

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings 48.5x26x16mm Mn-Zn Coated

ESD-R-47-P
KEMET
1: $17.00
68In Stock

Mfr. Part No.
ESD-R-47-P

Mouser Part No
80-ESD-R-47-P

KEMET

Ferrite Toroids / Ferrite Rings 48.5x26x16mm Mn-Zn Coated

Datasheet

68In Stock

$17.00

$12.79

$10.19

$9.48

$8.85

Min.: 1
Mult.: 1

Ferrite Cable Cores 22x1.3mm Bare Ni-Zn for Flat Cable

ESD-FPL-27-8
KEMET
1: $1.36
3,321In Stock

Mfr. Part No.
ESD-FPL-27-8

Mouser Part No
80-ESD-FPL-27-8

KEMET

Ferrite Cable Cores 22x1.3mm Bare Ni-Zn for Flat Cable

Datasheet

3,321In Stock

$1.36

$0.667

$0.512

$0.456

View

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings 9mm

ESD-R-19
KEMET
1: $2.22
1,420In Stock

Mfr. Part No.
ESD-R-19

Mouser Part No
80-ESD-R-19

KEMET

Ferrite Toroids / Ferrite Rings 9mm

Datasheet

1,420In Stock

$2.22

$1.32

$1.17

$1.03

View

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings 15.1mm

ESD-R-25L-A
KEMET
1: $3.14
779In Stock

Mfr. Part No.
ESD-R-25L-A

Mouser Part No
80-ESD-R-25L-A

KEMET

Ferrite Toroids / Ferrite Rings 15.1mm

Datasheet

779In Stock

$3.14

$1.64

$1.18

$1.16

$1.12

Min.: 1
Mult.: 1

Ferrite Cable Cores Solid Core Flat 27mm Cable

ESD-FPL-20-12
KEMET
1: $3.48
871In Stock

Mfr. Part No.
ESD-FPL-20-12

Mouser Part No
80-ESD-FPL-20-12

KEMET

Ferrite Cable Cores Solid Core Flat 27mm Cable

Datasheet

871In Stock

$3.48

$1.81

$1.26

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings 7.3mm

ESD-R-12E
KEMET
1: $0.973
3,300In Stock

Mfr. Part No.
ESD-R-12E

Mouser Part No
80-ESD-R-12E

KEMET

Ferrite Toroids / Ferrite Rings 7.3mm

Datasheet

3,300In Stock

$0.973

$0.525

$0.393

$0.356

View

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings 7mm

ESD-R-14C
KEMET
1: $0.695
6,349In Stock

Mfr. Part No.
ESD-R-14C

Mouser Part No
80-ESD-R-14C

KEMET

Ferrite Toroids / Ferrite Rings 7mm

Datasheet

6,349In Stock

$0.695

$0.224

$0.202

$0.192

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings 29x12.7x16mm 300MHz Ni-Zn 120C

ESD-R-25N-H
KEMET
1: $4.55
942In Stock

Mfr. Part No.
ESD-R-25N-H

Mouser Part No
80-ESD-R-25N-H

KEMET

Ferrite Toroids / Ferrite Rings 29x12.7x16mm 300MHz Ni-Zn 120C

Datasheet

942In Stock

$4.55

$2.35

$1.72

Min.: 1
Mult.: 1

Ferrite Cable Cores Solid Core Flat 23.5mm Cable

ESD-FPL-15
KEMET
1: $2.39
1,215In Stock

Mfr. Part No.
ESD-FPL-15

Mouser Part No
80-ESD-FPL-15

KEMET

Ferrite Cable Cores Solid Core Flat 23.5mm Cable

Datasheet

1,215In Stock

$2.39

$1.12

$0.902

$0.816

$0.815

Min.: 1
Mult.: 1

Ferrite Cable Cores 11.5x0.85mm Bare Ni-Zn for Flat Cable

ESD-FPL-16-12
KEMET
1: $7.37
1,650In Stock

Mfr. Part No.
ESD-FPL-16-12

Mouser Part No
80-ESD-FPL-16-12

KEMET

Ferrite Cable Cores 11.5x0.85mm Bare Ni-Zn for Flat Cable

Datasheet

1,650In Stock

$7.37

$3.88

$3.36

$3.04

$3.03

Min.: 1
Mult.: 1

Ferrite Cable Cores 28x0.8mm Bare Ni-Zn for Flat Cable

ESD-FPL-32-12
KEMET
1: $1.82
1,573In Stock

Mfr. Part No.
ESD-FPL-32-12

Mouser Part No
80-ESD-FPL-32-12

KEMET

Ferrite Cable Cores 28x0.8mm Bare Ni-Zn for Flat Cable

Datasheet

1,573In Stock

$1.82

$0.885

$0.674

$0.619

View

Min.: 1
Mult.: 1

Ferrite Cable Cores 11x8mm Bare Ni-Zn for Flat Cable

ESD-FPL-14.5-5
KEMET
1: $0.737
4,680In Stock

Mfr. Part No.
ESD-FPL-14.5-5

Mouser Part No
80-ESD-FPL-14.5-5

KEMET

Ferrite Cable Cores 11x8mm Bare Ni-Zn for Flat Cable

Datasheet

4,680In Stock

$0.737

$0.366

$0.278

$0.24

View

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings 5mm

ESD-R-10E
KEMET
1: $0.292
14,316In Stock

Mfr. Part No.
ESD-R-10E

Mouser Part No
80-ESD-R-10E

KEMET

Ferrite Toroids / Ferrite Rings 5mm

Datasheet

14,316In Stock

$0.292

$0.16

$0.122

$0.108

View

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings Ferrite Bead Incased EMI 8.8mm

ESD-R-19B
KEMET
1: $3.78
692In Stock

Mfr. Part No.
ESD-R-19B

Mouser Part No
80-ESD-R-19B

KEMET

Ferrite Toroids / Ferrite Rings Ferrite Bead Incased EMI 8.8mm

Datasheet

692In Stock

$3.78

$1.96

$1.42

$1.39

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings 15mm

ESD-R-25D-8
KEMET
1: $3.52
899In Stock

Mfr. Part No.
ESD-R-25D-8

Mouser Part No
80-ESD-R-25D-8

KEMET

Ferrite Toroids / Ferrite Rings 15mm

Datasheet

899In Stock

$3.52

$1.82

$1.31

$1.28

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings 19x10.7x5.3mm Ni-Zn Coated

ESD-R-19E-1
KEMET
1: $5.17
635In Stock

Mfr. Part No.
ESD-R-19E-1

Mouser Part No
80-ESD-R-19E-1

KEMET

Ferrite Toroids / Ferrite Rings 19x10.7x5.3mm Ni-Zn Coated

Datasheet

635In Stock

$5.17

$2.77

$2.00

Min.: 1
Mult.: 1