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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: £10.35
393In 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

393In Stock

£10.35

£6.08

£5.26

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings Ferrite Bead Incased EMI 17.9mm

ESD-R-38D-B
KEMET
1: £7.05
1,691In 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

1,691In Stock

£7.05

£4.43

£3.83

£3.59

Min.: 1
Mult.: 1

Ferrite Cable Cores Ferrite Bead Core EMI 1mm

B-20L-25
KEMET
1: £0.15
52,517In Stock

Mfr. Part No.
B-20L-25

Mouser Part No
80-B-20L-25

KEMET

Ferrite Cable Cores Ferrite Bead Core EMI 1mm

Datasheet

52,517In Stock

£0.15

£0.095

£0.074

£0.07

View

Min.: 1
Mult.: 1
Max.: 60,000

Ferrite Cable Cores Ferrite Bead Core EMI 1.6mm

B-20L-44
KEMET
1: £0.113
48,616In Stock

Mfr. Part No.
B-20L-44

Mouser Part No
80-B-20L-44

KEMET

Ferrite Cable Cores Ferrite Bead Core EMI 1.6mm

Datasheet

48,616In Stock

£0.113

£0.079

£0.072

£0.068

View

Min.: 1
Mult.: 1
Max.: 20,000

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

ESD-FPD-40-1
KEMET
1: £7.31
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

£7.31

£4.15

£3.59

£3.32

Min.: 1
Mult.: 1

Ferrite Clamp On Cores 15.5x18.5mm 300MHz Mn-Zn 85C

ESD-SR-S10M
KEMET
1: £3.67
741In Stock

Mfr. Part No.
ESD-SR-S10M

Mouser Part No
80-ESD-SR-S10M

KEMET

Ferrite Clamp On Cores 15.5x18.5mm 300MHz Mn-Zn 85C

Datasheet

741In Stock

£3.67

£2.30

£2.01

£1.56

£1.55

Min.: 1
Mult.: 1
Max.: 3,200

Ferrite Cable Cores Ferrite Bead Core EMI 0.8mm

B-20L-34
KEMET
1: £0.263
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

£0.263

£0.142

£0.108

£0.089

View

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings 6mm

ESD-R-12D
KEMET
1: £1.53
1,895In Stock

Mfr. Part No.
ESD-R-12D

Mouser Part No
80-ESD-R-12D

KEMET

Ferrite Toroids / Ferrite Rings 6mm

Datasheet

1,895In Stock

£1.53

£0.908

£0.803

£0.582

£0.526

Min.: 1
Mult.: 1

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

ESD-SR-120
KEMET
1: £2.44
4,340In Stock

Mfr. Part No.
ESD-SR-120

Mouser Part No
80-ESD-SR-120

KEMET

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

Datasheet

4,340In Stock

£2.44

£1.56

£1.43

£1.02

View

Min.: 1
Mult.: 1
Max.: 2,800

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

ESD-R-12M-H
KEMET
1: £1.07
2,486In 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

2,486In Stock

£1.07

£0.555

£0.40

£0.362

£0.347

Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings Ferrite Bead Incased EMI 8.8mm

ESD-R-19B
KEMET
1: £2.14
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

£2.14

£1.26

£1.11

£0.803

£0.78

Min.: 1
Mult.: 1

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

ESD-R-19E-1
KEMET
1: £2.93
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

£2.93

£1.71

£1.37

£1.13

Min.: 1
Mult.: 1

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

ESD-R-25N-H
KEMET
1: £2.58
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

£2.58

£1.51

£1.32

£0.969

Min.: 1
Mult.: 1

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

ESD-R-57N-H
KEMET
1: £15.59
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

£15.59

£8.63

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: £2.90
942In 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

942In Stock

£2.90

£1.69

£1.48

£1.42

£1.28

Min.: 1
Mult.: 1
Max.: 1,600

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

ESD-R-220814XH-R1
KEMET
1: £1.70
602In 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

Datasheet

602In Stock

£1.70

£1.01

£0.89

£0.773

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: £1.91
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

£1.91

£1.13

£0.995

£0.986

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: £3.39
200In 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

Datasheet

200In Stock

£3.39

£1.96

£1.73

£1.68

View

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: £4.29
76In 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

Datasheet

76In Stock

£4.29

£2.47

£2.21

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: £2.29
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

Datasheet

319In Stock

£2.29

£1.34

£1.18

£1.06

£1.05

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: £13.35
83In 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

Datasheet

83In Stock

120Expected 27/04/2027

£13.35

£8.41

Min.: 1
Mult.: 1
Max.: 480

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

ESD-R-421617XH-R1
KEMET
1: £4.35
226In 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

Datasheet

226In Stock

£4.35

£2.50

£2.18

£2.10

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-512419XH-R1
KEMET
1: £6.08
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

Datasheet

78In Stock

£6.08

£3.47

£3.02

£3.01

Quote

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: £15.33
70In 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

Datasheet

70In Stock

£15.33

£10.15

£10.14

Min.: 1
Mult.: 1

Ferrite Clamp On Cores Mn-Zn HR1 Round Snap On 500MHz 85C 5x28x14.4x14.2mm

ESD-SR-130527X-R1
KEMET
1: £2.05
1,210In Stock

Mfr. Part No.
ESD-SR-130527X-R1

Mouser Part No
80-ESD-SR-130527X-R1

KEMET

Ferrite Clamp On Cores Mn-Zn HR1 Round Snap On 500MHz 85C 5x28x14.4x14.2mm

Datasheet

1,210In Stock

£2.05

£1.20

£1.07

£0.952

View

Min.: 1
Mult.: 1