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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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Types of Passive Components

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Part #

Ferrite Cable Cores Solid Core Flat 68.6mm Cable

ESD-FPL-50
KEMET
1: 22,03 RON
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

22,03 RON

11,12 RON

9,41 RON

Min.: 1
Mult.: 1

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

ESD-FPD-40-1
KEMET
1: 40,39 RON
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

40,39 RON

19,11 RON

Min.: 1
Mult.: 1

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

ESD-SR-100G
KEMET
1: 10,01 RON
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

10,01 RON

4,67 RON

3,73 RON

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings 6.2mm

ESD-R-14A
KEMET
1: 3,55 RON
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

3,55 RON

1,90 RON

1,41 RON

1,23 RON

1,11 RON

Min.: 1
Mult.: 1

Ferrite Cable Cores Split Core Flat 25.4mm Cable

ESD-FPD-16
KEMET
1: 28,62 RON
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

28,62 RON

14,29 RON

12,78 RON

Min.: 1
Mult.: 1

Ferrite Cable Cores Ferrite Bead Core EMI 0.8mm

B-20L-34
KEMET
1: 1,43 RON
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

1,43 RON

0,785 RON

0,594 RON

0,453 RON

View

Min.: 1
Mult.: 1

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

ESD-FPL-45-12
KEMET
1: 11,62 RON
363In Stock
720Expected 4/20/2026

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 4/20/2026

11,62 RON

6,94 RON

5,33 RON

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings 48.5x26x16mm Mn-Zn Coated

ESD-R-47-P
KEMET
1: 52,92 RON
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

52,92 RON

39,79 RON

31,69 RON

29,53 RON

27,56 RON

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings 13mm

ESD-R-26S
KEMET
1: 17,71 RON
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

17,71 RON

10,31 RON

8,80 RON

6,89 RON

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings 57x36x20mm Mn-Zn Bare

ESD-R-57S
KEMET
1: 63,48 RON
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

63,48 RON

48,09 RON

40,99 RON

38,58 RON

View

Min.: 1
Mult.: 1

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

ESD-FPL-14.5-5
KEMET
1: 2,29 RON
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

2,29 RON

1,14 RON

0,865 RON

0,749 RON

View

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings 5mm

ESD-R-10E
KEMET
1: 0,91 RON
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

0,91 RON

0,498 RON

0,382 RON

0,337 RON

View

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings Ferrite Bead Incased EMI 8.8mm

ESD-R-19B
KEMET
1: 11,77 RON
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

11,77 RON

6,09 RON

4,50 RON

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings 15mm

ESD-R-25D-8
KEMET
1: 10,97 RON
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

10,97 RON

5,68 RON

4,13 RON

Min.: 1
Mult.: 1

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

ESD-R-19E-1
KEMET
1: 16,10 RON
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

16,10 RON

8,60 RON

6,49 RON

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings 15x5x9mm 10MHz Mn-Zn 120C

ESD-R-12M-H
KEMET
1: 5,83 RON
2.500In Stock

Mfr. Part No.
ESD-R-12M-H

Mouser Part No
80-ESD-R-12M-H

KEMET

Ferrite Toroids / Ferrite Rings 15x5x9mm 10MHz Mn-Zn 120C

Datasheet

2.500In Stock

5,83 RON

3,10 RON

2,19 RON

2,00 RON

Min.: 1
Mult.: 1

Ferrite Cable Cores Solid Core Flat 23.5mm Cable

ESD-FPL-15
KEMET
1: 7,44 RON
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

7,44 RON

3,50 RON

2,81 RON

2,64 RON

Min.: 1
Mult.: 1

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

ESD-FPL-16-12
KEMET
1: 22,94 RON
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

22,94 RON

12,07 RON

10,46 RON

9,86 RON

Min.: 1
Mult.: 1

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

ESD-FPL-32-12
KEMET
1: 5,68 RON
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

5,68 RON

2,76 RON

2,10 RON

1,93 RON

1,92 RON

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings 32x19x15.8mm Mn-Zn Coated

ESD-R-31-P
KEMET
1: 20,12 RON
355In Stock

Mfr. Part No.
ESD-R-31-P

Mouser Part No
80-ESD-R-31-P

KEMET

Ferrite Toroids / Ferrite Rings 32x19x15.8mm Mn-Zn Coated

Datasheet

355In Stock

20,12 RON

11,62 RON

10,16 RON

8,45 RON

Min.: 1
Mult.: 1

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

ESD-FPL-27-8
KEMET
1: 4,24 RON
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

4,24 RON

2,08 RON

1,59 RON

1,42 RON

1,37 RON

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings 9mm

ESD-R-19
KEMET
1: 6,94 RON
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

6,94 RON

4,12 RON

3,65 RON

3,20 RON

View

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings 15.1mm

ESD-R-25L-A
KEMET
1: 9,76 RON
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

9,76 RON

5,08 RON

3,68 RON

3,63 RON

Min.: 1
Mult.: 1

Ferrite Cable Cores Solid Core Flat 27mm Cable

ESD-FPL-20-12
KEMET
1: 10,81 RON
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

10,81 RON

5,63 RON

4,08 RON

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings 7.3mm

ESD-R-12E
KEMET
1: 3,03 RON
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

3,03 RON

1,63 RON

1,22 RON

1,11 RON

View

Min.: 1
Mult.: 1