Passive Components – Mouser South Africa

.hide-partial { max-height: none; } .show-more { display: none; }

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.

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Types of Passive Components

List Images

Results: 117

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.
Ferrite Clamp On Cores Mn-Zn HR1 Round Snap On 500MHz 85C 6x33x16x16.4mm ESD-SR-150632X-R1 KEMET 1: $2.97 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	$2.97 $1.74 $1.54 $1.40 View $1.30 $1.29 $1.26 $1.22 $1.20	Min.: 1 Mult.: 1
Ferrite Clamp On Cores Mn-Zn HR1 Round Snap On 500MHz 85C 9x39x20.2x20mm ESD-SR-190938X-R1 KEMET 1: $3.87 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	$3.87 $2.26 $1.98 $1.90 View $1.76 $1.71 $1.67 Quote	Min.: 1 Mult.: 1
Ferrite Cable Cores Ferrite Bead Core EMI 2.4mm B-20L-48B KEMET 1: $0.29 22,121In 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	22,121In Stock 80,000On Order On Order Ship Dates Mfr. No: B-20L-48B Stock: 22,121 Can Dispatch Immediately On Order: 40,000 Expected 2026/11/19 40,000 Expected 2027/02/09 Factory Lead Time: 29 Weeks	$0.29 $0.159 $0.121 $0.107 View $0.094 $0.091 $0.087	Min.: 1 Mult.: 1 Max.: 20,000
Ferrite Cable Cores Split Core Flat 25.4mm Cable ESD-FPD-16 KEMET 1: $6.94 911In 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	911In Stock	$6.94 $3.98 $3.47 $3.29 $3.26	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 10mm ESD-R-19S KEMET 1: $1.99 2,314In Stock 960Expected 2026/11/26	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	2,314In Stock 960Expected 2026/11/26	$1.99 $1.17 $1.05 $0.876 View $0.822 $0.773 $0.75	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 25.5mm ESD-R-47 KEMET 1: $6.70 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	$6.70 $3.51 $3.22 $3.12	Min.: 1 Mult.: 1
Ferrite Clamp On Cores 9x39x20mm Ni-Zn 65C ESD-SR-160 KEMET 1: $4.37 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	$4.37 $2.57 $2.26 $2.04 View $1.91 $1.78	Min.: 1 Mult.: 1
Ferrite Clamp On Cores 13x38x31.6mm Ni-Zn 65C ESD-SR-250 KEMET 1: $8.71 1,170In Stock 1,320Expected 2026/12/14	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	1,170In Stock 1,320Expected 2026/12/14	$8.71 $5.47 $4.55 $4.47	Min.: 1 Mult.: 1 Max.: 120
Ferrite Clamp On Cores 6x18.5x14mm Ni-Zn 65C ESD-SR-S10 KEMET 1: $2.70 6,180In Stock	Mfr. Part No. ESD-SR-S10 Mouser Part No 80-ESD-SR-S10	KEMET	Ferrite Clamp On Cores 6x18.5x14mm Ni-Zn 65C Learn More about KEMET emi cores	Datasheet	6,180In Stock	$2.70 $1.59 $1.40 $1.02 View $1.01 $1.00	Min.: 1 Mult.: 1
Ferrite Cable Cores 4.8x2.4mm 300MHz Ni-Zn Bare B-20L-48B-L KEMET 1: $0.25 12,165In 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 Learn More about KEMET emi cores	Datasheet	12,165In Stock	$0.25 $0.136 $0.104 $0.092 View $0.08 $0.077 $0.076	Min.: 1 Mult.: 1 Max.: 20,000
Ferrite Cable Cores Ferrite Bead Core EMI 4.8mm B-20L-95B KEMET 1: $0.74 4,865In Stock 15,000Expected 2027/03/08	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	4,865In Stock 15,000Expected 2027/03/08	$0.74 $0.398 $0.298 $0.261 View $0.256 $0.255	Min.: 1 Mult.: 1 Max.: 30,000
Ferrite Cable Cores Split Core Flat 25.4mm Cable ESD-FPD-16-1 KEMET 1: $7.23 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 2026/11/02 800 Expected 2027/01/18 Factory Lead Time: 23 Weeks	$7.23 $4.44 $4.08 $3.71 View $3.40 $3.33	Min.: 1 Mult.: 1
Ferrite Cable Cores Split Core Flat 48.3mm Cable ESD-FPD-34 KEMET 1: $8.47 249In Stock 240Expected 2027/01/18	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	249In Stock 240Expected 2027/01/18	$8.47 $5.65 $4.90 $4.66	Min.: 1 Mult.: 1 Max.: 480
Ferrite Cable Cores 68.6x2mm Split Core Ni-Zn for Flat Cable ESD-FPD-50 KEMET 1: $9.90 129In 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	129In Stock	$9.90 $5.29 $5.07	Min.: 1 Mult.: 1
Ferrite Cable Cores Split Core Flat 68.6mm Cable ESD-FPD-50-1 KEMET 1: $10.39 150In 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	150In Stock	$10.39 $5.90 $5.88 $5.27 $5.26	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 12x7x15mm Ni-Zn Coated ESD-R-12CM KEMET 1: $1.38 217In Stock 1,500Expected 2027/02/02	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	217In Stock 1,500Expected 2027/02/02	$1.38 $0.732 $0.519 $0.465 $0.458	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 7.3mm ESD-R-12E KEMET 1: $0.87 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	$0.87 $0.477 $0.357 $0.311 View $0.276 $0.237	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 15x5x9mm 300MHz Ni-Zn 120C ESD-R-12N-H KEMET 1: $1.47 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	$1.47 $0.779 $0.55 $0.547 View $0.533 $0.529	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 6.2mm ESD-R-14A KEMET 1: $0.861 4,679In Stock	Mfr. Part No. ESD-R-14A Mouser Part No 80-ESD-R-14A	KEMET	Ferrite Toroids / Ferrite Rings 6.2mm Learn More about KEMET emi cores	Datasheet	4,679In Stock	$0.861 $0.461 $0.343 $0.298 View $0.29 $0.283	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 7mm ESD-R-14C KEMET 1: $0.52 2,603In Stock 6,000Expected 2027/02/02	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 2027/02/02	$0.52 $0.284 $0.214 $0.187 View $0.163 $0.159	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 7mm ESD-R-14C-2 KEMET 1: $0.73 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	$0.73 $0.408 $0.305 $0.266 View $0.264 $0.263 $0.262	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 10.5mm ESD-R-15C KEMET 1: $1.37 620In Stock	Mfr. Part No. ESD-R-15C Mouser Part No 80-ESD-R-15C	KEMET	Ferrite Toroids / Ferrite Rings 10.5mm Learn More about KEMET emi cores	Datasheet	620In Stock	$1.37 $0.811 $0.598 $0.52 View $0.449 $0.447	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 10.5mm ESD-R-15C-1 KEMET 1: $0.861 210In Stock	Mfr. Part No. ESD-R-15C-1 Mouser Part No 80-ESD-R-15C-1	KEMET	Ferrite Toroids / Ferrite Rings 10.5mm Learn More about KEMET emi cores	Datasheet	210In Stock	$0.861 $0.459 $0.342 $0.328 View $0.327 $0.284 $0.281	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 11.6mm ESD-R-16 KEMET 1: $1.21 1,032In Stock	Mfr. Part No. ESD-R-16 Mouser Part No 80-ESD-R-16	KEMET	Ferrite Toroids / Ferrite Rings 11.6mm Learn More about KEMET emi cores	Datasheet	1,032In Stock	$1.21 $0.641 $0.493 $0.427 View $0.415 $0.365 $0.356	Min.: 1 Mult.: 1
Ferrite Toroids / Ferrite Rings 22x7.7x14mm 10MHz Mn-Zn 120C ESD-R-19M-H KEMET 1: $2.49 380In Stock	Mfr. Part No. ESD-R-19M-H Mouser Part No 80-ESD-R-19M-H	KEMET	Ferrite Toroids / Ferrite Rings 22x7.7x14mm 10MHz Mn-Zn 120C Learn More about KEMET emi cores	Datasheet	380In Stock	$2.49 $1.47 $1.19 $1.11 View $1.06 $1.00 $0.983	Min.: 1 Mult.: 1

EMI Cores

Types of Passive Components

Customer Service Office

Company

Resources

Support