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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 Clamp On Cores 53x19mm 10MHz Mn-Zn 85C

ESD-SR-S47M
KEMET
1: 90,86 kr.
394In Stock

Mfr. Part No.
ESD-SR-S47M

Mouser Part No
80-ESD-SR-S47M

KEMET

Ferrite Clamp On Cores 53x19mm 10MHz Mn-Zn 85C

Datasheet

394In Stock

90,86 kr.

56,77 kr.

52,37 kr.

52,00 kr.

44,98 kr.

Min.: 1
Mult.: 1

Ferrite Cable Cores Ferrite Bead Core EMI 0.8mm

B-20L-34
KEMET
1: 2,25 kr.
27.395In 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

27.395In Stock

2,25 kr.

1,22 kr.

0,925 kr.

0,813 kr.

View

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings 6mm

ESD-R-12D
KEMET
1: 13,06 kr.
1.995In Stock

Mfr. Part No.
ESD-R-12D

Mouser Part No
80-ESD-R-12D

KEMET

Ferrite Toroids / Ferrite Rings 6mm

Datasheet

1.995In Stock

13,06 kr.

7,76 kr.

6,86 kr.

4,98 kr.

4,50 kr.

Min.: 1
Mult.: 1

Ferrite Clamp On Cores 6x33x16.4mm Ni-Zn 65C

ESD-SR-120
KEMET
1: 20,52 kr.
2.471In Stock
2.100Expected 11/09/2026

Mfr. Part No.
ESD-SR-120

Mouser Part No
80-ESD-SR-120

KEMET

Ferrite Clamp On Cores 6x33x16.4mm Ni-Zn 65C

Datasheet

2.471In Stock

2.100Expected 11/09/2026

20,52 kr.

13,13 kr.

11,56 kr.

9,10 kr.

View

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings Ferrite Bead Incased EMI 17.9mm

ESD-R-38D-B
KEMET
1: 65,87 kr.
1.721In Stock

Mfr. Part No.
ESD-R-38D-B

Mouser Part No
80-ESD-R-38D-B

KEMET

Ferrite Toroids / Ferrite Rings Ferrite Bead Incased EMI 17.9mm

Datasheet

1.721In Stock

65,87 kr.

37,82 kr.

32,75 kr.

30,66 kr.

Min.: 1
Mult.: 1

Ferrite Cable Cores 4.8x2.4mm 300MHz Ni-Zn Bare

B-20L-48B-L
KEMET
1: 1,60 kr.
30.995In Stock

Mfr. Part No.
B-20L-48B-L

Mouser Part No
80-B-20L-48B-L

KEMET

Ferrite Cable Cores 4.8x2.4mm 300MHz Ni-Zn Bare

Datasheet

30.995In Stock

1,60 kr.

0,873 kr.

0,664 kr.

0,589 kr.

View

Min.: 1
Mult.: 1

Ferrite Cable Cores Ferrite Bead Core EMI 1mm

B-20L-25
KEMET
1: 1,67 kr.
52.537In Stock

Mfr. Part No.
B-20L-25

Mouser Part No
80-B-20L-25

KEMET

Ferrite Cable Cores Ferrite Bead Core EMI 1mm

Datasheet

52.537In Stock

1,67 kr.

1,07 kr.

0,761 kr.

0,701 kr.

View

Min.: 1
Mult.: 1

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

ESD-FPD-40-1
KEMET
1: 62,44 kr.
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

62,44 kr.

35,51 kr.

30,74 kr.

28,35 kr.

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings 14mm

ESD-R-25
KEMET
1: 14,25 kr.
273In Stock
300Expected 24/09/2026

Mfr. Part No.
ESD-R-25

Mouser Part No
80-ESD-R-25

KEMET

Ferrite Toroids / Ferrite Rings 14mm

Datasheet

273In Stock

300Expected 24/09/2026

14,25 kr.

8,50 kr.

7,53 kr.

5,65 kr.

Min.: 1
Mult.: 1

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

ESD-R-12M-H
KEMET
1: 9,10 kr.
2.496In 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

2.496In Stock

9,10 kr.

4,83 kr.

3,42 kr.

2,96 kr.

Min.: 1
Mult.: 1

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

ESD-R-25N-H
KEMET
1: 22,08 kr.
928In 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

928In Stock

22,08 kr.

12,91 kr.

11,26 kr.

8,28 kr.

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings Ferrite Bead Incased EMI 8.8mm

ESD-R-19B
KEMET
1: 18,28 kr.
673In 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

673In Stock

18,28 kr.

10,74 kr.

9,47 kr.

6,86 kr.

6,67 kr.

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings 61x33.2x25mm 10MHz Mn-Zn 120C

ESD-R-57M-H
KEMET
1: 134,73 kr.
60In Stock

Mfr. Part No.
ESD-R-57M-H

Mouser Part No
80-ESD-R-57M-H

KEMET

Ferrite Toroids / Ferrite Rings 61x33.2x25mm 10MHz Mn-Zn 120C

Datasheet

60In Stock

134,73 kr.

71,62 kr.

71,54 kr.

71,39 kr.

Min.: 1
Mult.: 1

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

ESD-R-19E-1
KEMET
1: 25,07 kr.
615In 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

615In Stock

25,07 kr.

14,62 kr.

11,71 kr.

9,62 kr.

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings 61x33.2x25mm 300MHz Ni-Zn 120C

ESD-R-57N-H
KEMET
1: 141,37 kr.
57In Stock

Mfr. Part No.
ESD-R-57N-H

Mouser Part No
80-ESD-R-57N-H

KEMET

Ferrite Toroids / Ferrite Rings 61x33.2x25mm 300MHz Ni-Zn 120C

Datasheet

57In Stock

141,37 kr.

73,78 kr.

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings Coated Toroidal Mn-Zn Low Frequency AM Band 150kHz Ring High permeability S15H

ESD-R-25SR-P
KEMET
1: 36,63 kr.
576In Stock

Mfr. Part No.
ESD-R-25SR-P

Mouser Part No
80-ESD-R-25SR-P

KEMET

Ferrite Toroids / Ferrite Rings Coated Toroidal Mn-Zn Low Frequency AM Band 150kHz Ring High permeability S15H

576In Stock

36,63 kr.

21,11 kr.

18,87 kr.

Min.: 1
Mult.: 1

Ferrite Clamp On Cores Mn-Zn HR1 Round Snap On 500MHz 85C 7x37.4x19.6x20.3mm

ESD-SR-190736X-R1
KEMET
1: 24,77 kr.
1.072In Stock

Mfr. Part No.
ESD-SR-190736X-R1

Mouser Part No
80-ESD-SR-190736X-R1

KEMET

Ferrite Clamp On Cores Mn-Zn HR1 Round Snap On 500MHz 85C 7x37.4x19.6x20.3mm

Datasheet

1.072In Stock

24,77 kr.

14,47 kr.

12,68 kr.

12,16 kr.

View

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings High Heat Resistance with Case Toroidal Mn-Zn -40/+120C UL94 V-0 HR1

ESD-R-220814XH-R1
KEMET
1: 14,55 kr.
607In Stock

Mfr. Part No.
ESD-R-220814XH-R1

Mouser Part No
80-ESD-R-220814XH-R1

KEMET

Ferrite Toroids / Ferrite Rings High Heat Resistance with Case Toroidal Mn-Zn -40/+120C UL94 V-0 HR1

607In Stock

14,55 kr.

8,65 kr.

6,99 kr.

6,61 kr.

View

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings Bare,Toroidal Mn-Zn Low Frequency AM Band 150kHz Ring High permeability 10H

ESD-R-25SH
KEMET
1: 16,34 kr.
682In Stock

Mfr. Part No.
ESD-R-25SH

Mouser Part No
80-ESD-R-25SH

KEMET

Ferrite Toroids / Ferrite Rings Bare,Toroidal Mn-Zn Low Frequency AM Band 150kHz Ring High permeability 10H

682In Stock

16,34 kr.

9,62 kr.

8,50 kr.

8,43 kr.

View

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings Toroidal,Mn-Zn Low Frequency AM Band 150kHz Ring High permeability S15H

ESD-R-25SR
KEMET
1: 28,94 kr.
250In Stock

Mfr. Part No.
ESD-R-25SR

Mouser Part No
80-ESD-R-25SR

KEMET

Ferrite Toroids / Ferrite Rings Toroidal,Mn-Zn Low Frequency AM Band 150kHz Ring High permeability S15H

250In Stock

28,94 kr.

16,79 kr.

14,77 kr.

14,25 kr.

View

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings High Heat Resistance with Case Toroidal Mn-Zn -40/+120C UL94 V-0 HR1

ESD-R-291216XH-R1
KEMET
1: 19,55 kr.
319In Stock

Mfr. Part No.
ESD-R-291216XH-R1

Mouser Part No
80-ESD-R-291216XH-R1

KEMET

Ferrite Toroids / Ferrite Rings High Heat Resistance with Case Toroidal Mn-Zn -40/+120C UL94 V-0 HR1

319In Stock

19,55 kr.

11,49 kr.

10,07 kr.

9,03 kr.

8,95 kr.

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings Toroidal w/case Nanocrystal Low Frequency 150kHz Ring -40/+120C UL94 V-0

ESD-R-412119H-NC23
KEMET
1: 114,06 kr.
100In Stock
120Expected 27/04/2027

Mfr. Part No.
ESD-R-412119H-NC23

Mouser Part No
80-ESD-R-412119HNC23

KEMET

Ferrite Toroids / Ferrite Rings Toroidal w/case Nanocrystal Low Frequency 150kHz Ring -40/+120C UL94 V-0

100In Stock

120Expected 27/04/2027

114,06 kr.

71,84 kr.

71,77 kr.

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings High Heat Resistance with Case Toroidal Mn-Zn -40/+120C UL94 V-0 HR1

ESD-R-421617XH-R1
KEMET
1: 37,15 kr.
236In Stock

Mfr. Part No.
ESD-R-421617XH-R1

Mouser Part No
80-ESD-R-421617XH-R1

KEMET

Ferrite Toroids / Ferrite Rings High Heat Resistance with Case Toroidal Mn-Zn -40/+120C UL94 V-0 HR1

236In Stock

37,15 kr.

19,47 kr.

16,93 kr.

16,86 kr.

16,79 kr.

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings High Heat Resistance with Case Toroidal,Mn-Zn -40/+120C UL94 V-0 HR1

ESD-R-512419XH-R1
KEMET
1: 52,00 kr.
78In Stock

Mfr. Part No.
ESD-R-512419XH-R1

Mouser Part No
80-ESD-R-512419XH-R1

KEMET

Ferrite Toroids / Ferrite Rings High Heat Resistance with Case Toroidal,Mn-Zn -40/+120C UL94 V-0 HR1

78In Stock

52,00 kr.

27,08 kr.

27,01 kr.

26,78 kr.

View

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings High Heat Resistance with Case Toroidal Mn-Zn -40/+120C UL94 V-0 HR1

ESD-R-613325XH-R1
KEMET
1: 125,48 kr.
71In Stock

Mfr. Part No.
ESD-R-613325XH-R1

Mouser Part No
80-ESD-R-613325XH-R1

KEMET

Ferrite Toroids / Ferrite Rings High Heat Resistance with Case Toroidal Mn-Zn -40/+120C UL94 V-0 HR1

71In Stock

125,48 kr.

82,58 kr.

81,84 kr.

Min.: 1
Mult.: 1