Passive Components – Mouser Chile

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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 (CLP) Filter the results in the table by unit price based on your quantity.	Qty.
Ferrite Toroids / Ferrite Rings Ferrite Bead Incased EMI 17.9mm ESD-R-38D-B KEMET 1: $10.518 1.691In Stock	Mfr. Part # ESD-R-38D-B Mouser Part # 80-ESD-R-38D-B	KEMET	Ferrite Toroids / Ferrite Rings Ferrite Bead Incased EMI 17.9mm Learn More about KEMET emi cores	Datasheet	1.691In Stock	$10.518 $7.730 $6.269 $5.600 View $5.051 $5.040	Min.: 1 Mult.: 1
Ferrite Clamp On Cores 15.5x18.5mm 300MHz Mn-Zn 85C ESD-SR-S10M KEMET 1: $5.413 744In Stock	Mfr. Part # ESD-SR-S10M Mouser Part # 80-ESD-SR-S10M	KEMET	Ferrite Clamp On Cores 15.5x18.5mm 300MHz Mn-Zn 85C Learn More about KEMET emi cores	Datasheet	744In Stock	$5.413 $3.711 $3.151 $2.767 View $2.405 $2.284 $2.273	Min.: 1 Mult.: 1 Max.: 3.200
Ferrite Cable Cores Ferrite Bead Core EMI 0.8mm B-20L-34 KEMET 1: $384 27.395In Stock	Mfr. Part # B-20L-34 Mouser Part # 80-B-20L-34	KEMET	Ferrite Cable Cores Ferrite Bead Core EMI 0.8mm Learn More about KEMET Kemet EMI Cores	Datasheet	27.395In Stock	$384 $269 $233 $209 View $186 $158 $132 $119 $95,5	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 6mm ESD-R-12D KEMET 1: $2.152 1.895In Stock	Mfr. Part # ESD-R-12D Mouser Part # 80-ESD-R-12D	KEMET	Ferrite Toroids / Ferrite Rings 6mm Learn More about KEMET emi cores	Datasheet	1.895In Stock	$2.152 $1.482 $1.274 $1.120 View $985 $851 $741	Min.: 1 Mult.: 1
Ferrite Clamp On Cores 6x33x16.4mm Ni-Zn 65C ESD-SR-120 KEMET 1: $3.645 4.140In Stock	Mfr. Part # ESD-SR-120 Mouser Part # 80-ESD-SR-120	KEMET	Ferrite Clamp On Cores 6x33x16.4mm Ni-Zn 65C Learn More about KEMET emi cores	Datasheet	4.140In Stock	$3.645 $2.448 $2.086 $1.845 View $1.614 $1.427 $1.405 $1.394	Min.: 1 Mult.: 1 Max.: 2.800
Ferrite Clamp On Cores 53x19mm 10MHz Mn-Zn 85C ESD-SR-S47M KEMET 1: $15.086 373In Stock	Mfr. Part # ESD-SR-S47M Mouser Part # 80-ESD-SR-S47M	KEMET	Ferrite Clamp On Cores 53x19mm 10MHz Mn-Zn 85C Learn More about KEMET emi cores	Datasheet	373In Stock	$15.086 $8.904 $7.642 $7.411	Min.: 1 Mult.: 1
Ferrite Cable Cores Ferrite Bead Core EMI 1mm B-20L-25 KEMET 1: $242 52.517In Stock	Mfr. Part # B-20L-25 Mouser Part # 80-B-20L-25	KEMET	Ferrite Cable Cores Ferrite Bead Core EMI 1mm Learn More about KEMET Kemet EMI Cores	Datasheet	52.517In Stock	$242 $172 $153 $138 View $126 $111 $110 $107 $81,2	Min.: 1 Mult.: 1 Max.: 60.000
Ferrite Cable Cores Ferrite Bead Core EMI 1.6mm B-20L-44 KEMET 1: $209 48.566In Stock	Mfr. Part # B-20L-44 Mouser Part # 80-B-20L-44	KEMET	Ferrite Cable Cores Ferrite Bead Core EMI 1.6mm Learn More about KEMET Kemet EMI Cores	Datasheet	48.566In Stock	$209 $156 $142 $131 View $122 $111 $99,9 $90 $76,9	Min.: 1 Mult.: 1 Max.: 20.000
Ferrite Cable Cores 56x2mm Split Core Ni-Zn for Flat Cable ESD-FPD-40-1 KEMET 1: $10.299 364In Stock	Mfr. Part # ESD-FPD-40-1 Mouser Part # 80-ESD-FPD-40-1	KEMET	Ferrite Cable Cores 56x2mm Split Core Ni-Zn for Flat Cable Learn More about KEMET emi cores	Datasheet	364In Stock	$10.299 $7.246 $5.786 $5.259 $4.666	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings Ferrite Bead Incased EMI 8.8mm ESD-R-19B KEMET 1: $3.107 673In Stock	Mfr. Part # ESD-R-19B Mouser Part # 80-ESD-R-19B	KEMET	Ferrite Toroids / Ferrite Rings Ferrite Bead Incased EMI 8.8mm Learn More about KEMET emi cores	Datasheet	673In Stock	$3.107 $2.152 $1.845 $1.625 View $1.416 $1.175 $1.098	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 29x12.7x16mm 300MHz Ni-Zn 120C ESD-R-25N-H KEMET 1: $3.777 928In Stock	Mfr. Part # ESD-R-25N-H Mouser Part # 80-ESD-R-25N-H	KEMET	Ferrite Toroids / Ferrite Rings 29x12.7x16mm 300MHz Ni-Zn 120C Learn More about KEMET emi cores	Datasheet	928In Stock	$3.777 $2.602 $2.207 $1.932 View $1.680 $1.471 $1.449 $1.361	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 61x33.2x25mm 300MHz Ni-Zn 120C ESD-R-57N-H KEMET 1: $22.958 57In Stock	Mfr. Part # ESD-R-57N-H Mouser Part # 80-ESD-R-57N-H	KEMET	Ferrite Toroids / Ferrite Rings 61x33.2x25mm 300MHz Ni-Zn 120C Learn More about KEMET emi cores	Datasheet	57In Stock	$22.958 $14.625 $13.384 $12.956 $12.143	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 15x5x9mm 10MHz Mn-Zn 120C ESD-R-12M-H KEMET 1: $1.471 2.486In Stock	Mfr. Part # ESD-R-12M-H Mouser Part # 80-ESD-R-12M-H	KEMET	Ferrite Toroids / Ferrite Rings 15x5x9mm 10MHz Mn-Zn 120C Learn More about KEMET emi cores	Datasheet	2.486In Stock	$1.471 $1.012 $888 $805 View $707 $574 $533 $519	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 19x10.7x5.3mm Ni-Zn Coated ESD-R-19E-1 KEMET 1: $4.150 603In Stock	Mfr. Part # ESD-R-19E-1 Mouser Part # 80-ESD-R-19E-1	KEMET	Ferrite Toroids / Ferrite Rings 19x10.7x5.3mm Ni-Zn Coated Learn More about KEMET emi cores	Datasheet	603In Stock	$4.150 $2.844 $2.415 $1.998 View $1.713 $1.581	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: $4.238 942In Stock	Mfr. Part # ESD-SR-190736X-R1 Mouser Part # 80-ESD-SR-190736X-R1	KEMET	Ferrite Clamp On Cores Mn-Zn HR1 Round Snap On 500MHz 85C 7x37.4x19.6x20.3mm Learn More about KEMET emi cores	Datasheet	942In Stock	$4.238 $2.470 $2.174 $2.075 View $2.064 $1.921	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: $2.492 602In Stock	Mfr. Part # ESD-R-220814XH-R1 Mouser Part # 80-ESD-R-220814XH-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	602In Stock	$2.492 $1.482 $1.307 $1.131 View $1.120 $1.053 $1.018 $987	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: $2.800 682In Stock	Mfr. Part # ESD-R-25SH Mouser Part # 80-ESD-R-25SH	KEMET	Ferrite Toroids / Ferrite Rings Bare,Toroidal Mn-Zn Low Frequency AM Band 150kHz Ring High permeability 10H Learn More about KEMET emi cores		682In Stock	$2.800 $1.647 $1.449 $1.438 View $1.405 $1.329	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: $4.952 200In Stock	Mfr. Part # ESD-R-25SR Mouser Part # 80-ESD-R-25SR	KEMET	Ferrite Toroids / Ferrite Rings Toroidal,Mn-Zn Low Frequency AM Band 150kHz Ring High permeability S15H Learn More about KEMET emi cores	Datasheet	200In Stock	$4.952 $2.877 $2.525 $2.437 View $2.426 $2.306 $2.251 $2.196 Quote	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: $6.269 76In Stock	Mfr. Part # ESD-R-25SR-P Mouser Part # 80-ESD-R-25SR-P	KEMET	Ferrite Toroids / Ferrite Rings Coated Toroidal Mn-Zn Low Frequency AM Band 150kHz Ring High permeability S15H Learn More about KEMET emi cores	Datasheet	76In Stock	$6.269 $3.612 $3.228 $3.217	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: $3.349 319In Stock	Mfr. Part # ESD-R-291216XH-R1 Mouser Part # 80-ESD-R-291216XH-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	319In Stock	$3.349 $1.965 $1.724 $1.548 $1.537	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: $19.522 79In Stock 120Expected 4/27/2027	Mfr. Part # ESD-R-412119H-NC23 Mouser Part # 80-ESD-R-412119HNC23	KEMET	Ferrite Toroids / Ferrite Rings Toroidal w/case Nanocrystal Low Frequency 150kHz Ring -40/+120C UL94 V-0 Learn More about KEMET emi cores	Datasheet	79In Stock 120Expected 4/27/2027	$19.522 $12.297	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: $6.357 226In Stock	Mfr. Part # ESD-R-421617XH-R1 Mouser Part # 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	$6.357 $3.656 $3.195 $3.052 View $3.041 $2.997 $2.899 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-512419XH-R1 KEMET 1: $8.893 78In Stock	Mfr. Part # ESD-R-512419XH-R1 Mouser Part # 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	$8.893 $5.084 $4.414 $4.403 View $4.392 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: $22.420 70In Stock	Mfr. Part # ESD-R-613325XH-R1 Mouser Part # 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	$22.420 $14.844 $14.833	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: $2.997 1.210In Stock	Mfr. Part # ESD-SR-130527X-R1 Mouser Part # 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	1.210In Stock	$2.997 $1.768 $1.559 $1.394 View $1.318 $1.307 $1.252 $1.208 $1.197	Min.: 1 Mult.: 1

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