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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (IDR) Filter the results in the table by unit price based on your quantity.	Qty.	Product Type	Product
Ferrite Toroids / Ferrite Rings High Heat Resistance with Case Toroidal Mn-Zn -40/+120C UL94 V-0 HR1 ESD-R-421617XH-R1 KEMET 1: Rp106.223,34 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 Learn More about KEMET emi cores	Datasheet	226In Stock	Rp106.223,34 Rp61.092,18 Rp53.386,86 Rp51.001,88 View Rp50.818,42 Rp50.084,58 Rp48.433,44 Quote	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	EMI Cores
Ferrite Toroids / Ferrite Rings High Heat Resistance with Case Toroidal,Mn-Zn -40/+120C UL94 V-0 HR1 ESD-R-512419XH-R1 KEMET 1: Rp148.602,60 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 Learn More about KEMET emi cores	Datasheet	78In Stock	Rp148.602,60 Rp84.941,98 Rp73.750,92 Rp73.567,46 View Rp73.384,00 Quote	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	EMI Cores
Ferrite Toroids / Ferrite Rings High Heat Resistance with Case Toroidal Mn-Zn -40/+120C UL94 V-0 HR1 ESD-R-613325XH-R1 KEMET 1: Rp374.625,32 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 Learn More about KEMET emi cores	Datasheet	70In Stock	Rp374.625,32 Rp248.037,92 Rp247.854,46	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	EMI Cores
Ferrite Clamp On Cores Mn-Zn HR1 Round Snap On 500MHz 85C 5x28x14.4x14.2mm ESD-SR-130527X-R1 KEMET 1: Rp50.084,58 1.206In 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 Learn More about KEMET emi cores	Datasheet	1.206In Stock	Rp50.084,58 Rp29.537,06 Rp26.051,32 Rp23.299,42 View Rp22.015,20 Rp21.831,74 Rp20.914,44 Rp20.180,60 Rp19.997,14	Min.: 1 Mult.: 1	Ferrite Clamp On Cores	EMI Cores
Ferrite Clamp On Cores Mn-Zn HR1 Round Snap On 500MHz 85C 6x33x16x16.4mm ESD-SR-150632X-R1 KEMET 1: Rp54.487,62 996In Stock	Mfr. Part No. ESD-SR-150632X-R1 Mouser Part No 80-ESD-SR-150632X-R1	KEMET	Ferrite Clamp On Cores Mn-Zn HR1 Round Snap On 500MHz 85C 6x33x16x16.4mm Learn More about KEMET emi cores	Datasheet	996In Stock	Rp54.487,62 Rp31.922,04 Rp28.252,84 Rp25.684,40 View Rp23.849,80 Rp23.666,34 Rp22.932,50 Rp22.382,12 Quote	Min.: 1 Mult.: 1	Ferrite Clamp On Cores	EMI Cores
Ferrite Clamp On Cores Mn-Zn HR1 Round Snap On 500MHz 85C 9x39x20.2x20mm ESD-SR-190938X-R1 KEMET 1: Rp70.999,02 685In Stock	Mfr. Part No. ESD-SR-190938X-R1 Mouser Part No 80-ESD-SR-190938X-R1	KEMET	Ferrite Clamp On Cores Mn-Zn HR1 Round Snap On 500MHz 85C 9x39x20.2x20mm Learn More about KEMET emi cores	Datasheet	685In Stock	Rp70.999,02 Rp41.461,96 Rp36.325,08 Rp34.857,40 View Rp34.673,94 Rp32.105,50 Rp31.371,66 Rp30.637,82 Quote	Min.: 1 Mult.: 1	Ferrite Clamp On Cores	EMI Cores
Ferrite Cable Cores Split Core Flat 25.4mm Cable ESD-FPD-16 KEMET 1: Rp127.321,24 906In Stock	Mfr. Part No. ESD-FPD-16 Mouser Part No 80-ESD-FPD-16	KEMET	Ferrite Cable Cores Split Core Flat 25.4mm Cable Learn More about KEMET Kemet EMI Cores	Datasheet	906In Stock	Rp127.321,24 Rp73.017,08 Rp63.477,16 Rp60.358,34 Rp59.624,50	Min.: 1 Mult.: 1	Ferrite Cable Cores	Flat Ribbon Cable Cores Split
Ferrite Toroids / Ferrite Rings 10mm ESD-R-19S KEMET 1: Rp36.508,54 2.304In Stock 960Expected 26/11/2026	Mfr. Part No. ESD-R-19S Mouser Part No 80-ESD-R-19S	KEMET	Ferrite Toroids / Ferrite Rings 10mm Learn More about KEMET emi cores	Datasheet	2.304In Stock 960Expected 26/11/2026	Rp36.508,54 Rp21.648,28 Rp19.263,30 Rp16.052,75 View Rp15.080,41 Rp14.181,46 Rp13.759,50	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids
Ferrite Toroids / Ferrite Rings 25.5mm ESD-R-47 KEMET 1: Rp122.918,20 688In Stock	Mfr. Part No. ESD-R-47 Mouser Part No 80-ESD-R-47	KEMET	Ferrite Toroids / Ferrite Rings 25.5mm Learn More about KEMET emi cores	Datasheet	688In Stock	Rp122.918,20 Rp64.394,46 Rp59.074,12 Rp57.239,52	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids
Ferrite Clamp On Cores 6x21x16.5mm Ni-Zn 65C ESD-SR-100 KEMET 1: Rp44.580,78 2.785In Stock 2.970On Order	Mfr. Part No. ESD-SR-100 Mouser Part No 80-ESD-SR-100	KEMET	Ferrite Clamp On Cores 6x21x16.5mm Ni-Zn 65C Learn More about KEMET emi cores	Datasheet	2.785In Stock 2.970On Order On Order Ship Dates Mfr. No: ESD-SR-100 Stock: 2.785 Can Dispatch Immediately On Order: 900 Expected 08/12/2026 2.070 Expected 25/12/2026 Factory Lead Time: 23 Weeks	Rp44.580,78 Rp26.418,24 Rp20.730,98 Rp20.180,60	Min.: 1 Mult.: 1 Max.: 360	Ferrite Clamp On Cores	Ferrite Clamp On Cores
Ferrite Clamp On Cores 6x33x16.4mm Ni-Zn 65C ESD-SR-120 KEMET 1: Rp63.293,70 1.333In Stock 4.900Expected 12/04/2027	Mfr. Part No. ESD-SR-120 Mouser Part No 80-ESD-SR-120	KEMET	Ferrite Clamp On Cores 6x33x16.4mm Ni-Zn 65C Learn More about KEMET emi cores	Datasheet	1.333In Stock 4.900Expected 12/04/2027	Rp63.293,70 Rp39.810,82 Rp35.040,86 Rp24.950,56 View Rp24.767,10 Rp24.583,64	Min.: 1 Mult.: 1 Max.: 2.800	Ferrite Clamp On Cores	Ferrite Clamp On Cores
Ferrite Clamp On Cores 9x39x20mm Ni-Zn 65C ESD-SR-160 KEMET 1: Rp80.172,02 5.314In Stock	Mfr. Part No. ESD-SR-160 Mouser Part No 80-ESD-SR-160	KEMET	Ferrite Clamp On Cores 9x39x20mm Ni-Zn 65C Learn More about KEMET emi cores	Datasheet	5.314In Stock	Rp80.172,02 Rp47.149,22 Rp41.278,50 Rp37.425,84 View Rp35.040,86 Rp32.655,88	Min.: 1 Mult.: 1	Ferrite Clamp On Cores	Ferrite Clamp On Cores
Ferrite Clamp On Cores 13x38x31.6mm Ni-Zn 65C ESD-SR-250 KEMET 1: Rp159.793,66 1.153In Stock 1.320Expected 14/12/2026	Mfr. Part No. ESD-SR-250 Mouser Part No 80-ESD-SR-250	KEMET	Ferrite Clamp On Cores 13x38x31.6mm Ni-Zn 65C Learn More about KEMET emi cores	Datasheet	1.153In Stock 1.320Expected 14/12/2026	Rp159.793,66 Rp100.169,16 Rp83.474,30 Rp82.006,62	Min.: 1 Mult.: 1 Max.: 120	Ferrite Clamp On Cores	Ferrite Clamp On Cores
Ferrite Cable Cores Ferrite Bead Core EMI 2.4mm B-20L-48B KEMET 1: Rp5.320,34 10.663In Stock 80.000On Order	Mfr. Part No. B-20L-48B Mouser Part No 80-B-20L-48B	KEMET	Ferrite Cable Cores Ferrite Bead Core EMI 2.4mm Learn More about KEMET Kemet EMI Cores	Datasheet	10.663In Stock 80.000On Order On Order Ship Dates Mfr. No: B-20L-48B Stock: 10.663 Can Dispatch Immediately On Order: 40.000 Expected 19/11/2026 40.000 Expected 09/02/2027 Factory Lead Time: 29 Weeks	Rp5.320,34 Rp2.917,01 Rp2.219,87 Rp1.963,02 View Rp1.724,52 Rp1.669,49 Rp1.596,10	Min.: 1 Mult.: 1 Max.: 20.000	Ferrite Cable Cores	Round Cable Cores Solid
Ferrite Cable Cores 4.8x2.4mm 300MHz Ni-Zn Bare B-20L-48B-L KEMET 1: Rp6.788,02 4.752In Stock 35.000Expected 10/05/2027	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 Learn More about KEMET emi cores	Datasheet	4.752In Stock 35.000Expected 10/05/2027	Rp6.788,02 Rp3.834,31 Rp2.495,06 Rp2.073,10 View Rp1.779,56 Rp1.761,22 Rp1.430,99 Rp1.412,64	Min.: 1 Mult.: 1 Max.: 20.000	Ferrite Cable Cores	Round Cable Cores Solid
Ferrite Cable Cores Ferrite Bead Core EMI 4.8mm B-20L-95B KEMET 1: Rp13.576,04 4.515In Stock 15.000Expected 08/03/2027	Mfr. Part No. B-20L-95B Mouser Part No 80-B-20L-95B	KEMET	Ferrite Cable Cores Ferrite Bead Core EMI 4.8mm Learn More about KEMET Kemet EMI Cores	Datasheet	4.515In Stock 15.000Expected 08/03/2027	Rp13.576,04 Rp7.301,71 Rp5.467,11 Rp4.769,96 View Rp4.696,58 Rp4.678,23	Min.: 1 Mult.: 1 Max.: 30.000	Ferrite Cable Cores	Round Cable Cores Solid
Ferrite Cable Cores Split Core Flat 25.4mm Cable ESD-FPD-16-1 KEMET 1: Rp132.641,58 60In Stock 1.600On Order	Mfr. Part No. ESD-FPD-16-1 Mouser Part No 80-ESD-FPD-16-1	KEMET	Ferrite Cable Cores Split Core Flat 25.4mm Cable Learn More about KEMET emi cores	Datasheet	60In Stock 1.600On Order On Order Ship Dates Mfr. No: ESD-FPD-16-1 Stock: 60 Can Dispatch Immediately On Order: 800 Expected 02/11/2026 800 Expected 18/01/2027 Factory Lead Time: 23 Weeks	Rp132.641,58 Rp81.456,24 Rp74.851,68 Rp68.063,66 View Rp62.192,94 Rp60.908,72	Min.: 1 Mult.: 1	Ferrite Cable Cores	Flat Ribbon Cable Cores Split
Ferrite Cable Cores Split Core Flat 48.3mm Cable ESD-FPD-34 KEMET 1: Rp155.207,16 248In Stock 240Expected 18/01/2027	Mfr. Part No. ESD-FPD-34 Mouser Part No 80-ESD-FPD-34	KEMET	Ferrite Cable Cores Split Core Flat 48.3mm Cable Learn More about KEMET emi cores	Datasheet	248In Stock 240Expected 18/01/2027	Rp155.207,16 Rp103.104,52 Rp89.895,40 Rp85.492,36	Min.: 1 Mult.: 1 Max.: 480	Ferrite Cable Cores	Flat Ribbon Cable Cores Split
Ferrite Cable Cores 68.6x2mm Split Core Ni-Zn for Flat Cable ESD-FPD-50 KEMET 1: Rp181.625,40 125In Stock	Mfr. Part No. ESD-FPD-50 Mouser Part No 80-ESD-FPD-50	KEMET	Ferrite Cable Cores 68.6x2mm Split Core Ni-Zn for Flat Cable Learn More about KEMET emi cores	Datasheet	125In Stock	Rp181.625,40 Rp97.050,34 Rp93.014,22	Min.: 1 Mult.: 1	Ferrite Cable Cores	Flat Ribbon Cable Cores Split
Ferrite Cable Cores Split Core Flat 68.6mm Cable ESD-FPD-50-1 KEMET 1: Rp190.431,48 125In Stock	Mfr. Part No. ESD-FPD-50-1 Mouser Part No 80-ESD-FPD-50-1	KEMET	Ferrite Cable Cores Split Core Flat 68.6mm Cable Learn More about KEMET emi cores	Datasheet	125In Stock	Rp190.431,48 Rp108.241,40 Rp107.874,48 Rp96.683,42 Rp96.499,96	Min.: 1 Mult.: 1	Ferrite Cable Cores	Flat Ribbon Cable Cores Split
Ferrite Toroids / Ferrite Rings 12x7x15mm Ni-Zn Coated ESD-R-12CM KEMET 1: Rp25.317,48 167In Stock 1.500Expected 02/02/2027	Mfr. Part No. ESD-R-12CM Mouser Part No 80-ESD-R-12CM	KEMET	Ferrite Toroids / Ferrite Rings 12x7x15mm Ni-Zn Coated Learn More about KEMET emi cores	Datasheet	167In Stock 1.500Expected 02/02/2027	Rp25.317,48 Rp13.410,93 Rp9.521,57 Rp8.530,89 Rp8.402,47	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids
Ferrite Toroids / Ferrite Rings 7.3mm ESD-R-12E KEMET 1: Rp15.961,02 3.000In Stock	Mfr. Part No. ESD-R-12E Mouser Part No 80-ESD-R-12E	KEMET	Ferrite Toroids / Ferrite Rings 7.3mm Learn More about KEMET emi cores	Datasheet	3.000In Stock	Rp15.961,02 Rp8.751,04 Rp6.549,52 Rp5.705,61 View Rp5.063,50 Rp4.348,00	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids
Ferrite Toroids / Ferrite Rings 15x5x9mm 300MHz Ni-Zn 120C ESD-R-12N-H KEMET 1: Rp26.968,62 257In Stock	Mfr. Part No. ESD-R-12N-H Mouser Part No 80-ESD-R-12N-H	KEMET	Ferrite Toroids / Ferrite Rings 15x5x9mm 300MHz Ni-Zn 120C Learn More about KEMET emi cores	Datasheet	257In Stock	Rp26.968,62 Rp14.291,53 Rp10.090,30 Rp10.035,26 View Rp9.760,07 Quote	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids
Ferrite Toroids / Ferrite Rings 7mm ESD-R-14C KEMET 1: Rp9.539,92 2.603In Stock 6.000Expected 02/02/2027	Mfr. Part No. ESD-R-14C Mouser Part No 80-ESD-R-14C	KEMET	Ferrite Toroids / Ferrite Rings 7mm Learn More about KEMET emi cores	Datasheet	2.603In Stock 6.000Expected 02/02/2027	Rp9.539,92 Rp5.210,26 Rp3.926,04 Rp3.430,70 View Rp2.990,40 Rp2.917,01	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids
Ferrite Toroids / Ferrite Rings 7mm ESD-R-14C-2 KEMET 1: Rp13.392,58 1.140In Stock	Mfr. Part No. ESD-R-14C-2 Mouser Part No 80-ESD-R-14C-2	KEMET	Ferrite Toroids / Ferrite Rings 7mm Learn More about KEMET emi cores	Datasheet	1.140In Stock	Rp13.392,58 Rp7.485,17 Rp5.595,53 Rp4.880,04 View Rp4.843,34 Rp4.825,00 Rp4.806,65	Min.: 1 Mult.: 1	Ferrite Toroids / Ferrite Rings	Toroids

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