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.

Results: 22
Select Image Part #
 Mfr.
Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Product Type
Shape
Core Material
Inside Diameter
Outside Diameter
Outside Length
Outside Width
Outside Height
Qualification
Series
Packaging
KEMET Ferrite Clamp On Cores 16.5x6x21mm Ni-Zn Snap-on
Datasheet
1,720In Stock
Min.: 1
Mult.: 1

Ferrite Clamp On Cores Round Nickel Zinc 6 mm 16.5 mm 21 mm 16.5 mm 16.5 mm ESD-SR Tray
KEMET Ferrite Clamp On Cores 7x37.4x20.3mm Ni-Zn 65C
Datasheet
922In Stock
3,850On Order
Min.: 1
Mult.: 1

Ferrite Clamp On Cores Round Nickel Zinc 7 mm 19.6 mm 37.4 mm 20.3 mm 20.3 mm ESD-SR Bulk
KEMET Ferrite Clamp On Cores 9x39x20mm Ni-Zn 65C
Datasheet
1,896In Stock
Min.: 1
Mult.: 1

Ferrite Clamp On Cores Round Nickel Zinc 9 mm 20.2 mm 39 mm 20 mm 20 mm ESD-SR Bulk
KEMET Ferrite Clamp On Cores 8x20.5x20mm Ni-Zn 65C
Datasheet
2,783In Stock
1,960Expected 2026/04/27
Min.: 1
Mult.: 1

Ferrite Clamp On Cores Round Nickel Zinc 8 mm 23 mm 20.5 mm 20 mm 20 mm ESD-SR Bulk
KEMET Ferrite Clamp On Cores 14.4x5x28mm Ni-Zn Snap-on
Datasheet
41In Stock
1,620On Order
Min.: 1
Mult.: 1

Ferrite Clamp On Cores Round Nickel Zinc 5 mm 14.4 mm 28 mm 14.2 mm 14.2 mm ESD-SR Tray
KEMET Ferrite Clamp On Cores 6x33x16.4mm Ni-Zn 65C
Datasheet
280In Stock
2,800Expected 2026/05/28
Min.: 1
Mult.: 1

Ferrite Clamp On Cores Round Nickel Zinc 6 mm 16 mm 33 mm 16.4 mm 16.4 mm ESD-SR Bulk
KEMET Ferrite Clamp On Cores 19.6x7x37.4mm Ni-Zn Snap-on
Datasheet
112In Stock
400Expected 2026/05/28
Min.: 1
Mult.: 1

Ferrite Clamp On Cores Round Nickel Zinc 7 mm 19.6 mm 37.4 mm 20.3 mm 20.3 mm ESD-SR Tray
KEMET Ferrite Clamp On Cores 20.2x9x39mm Ni-Zn Snap-on
Datasheet
325In Stock
Min.: 1
Mult.: 1

Ferrite Clamp On Cores Round Nickel Zinc 9 mm 20.2 mm 39 mm 20 mm 20 mm ESD-SR Tray
KEMET Ferrite Clamp On Cores 19.5x46.5x19.5mm 300MHz Ni-Zn 100C
Datasheet
146In Stock
210Expected 2026/07/23
Min.: 1
Mult.: 1

Ferrite Clamp On Cores Round Nickel Zinc 9 mm 19.5 mm 38.5 mm 19.5 mm 19.5 mm ESD-SR-H Bulk
KEMET Ferrite Clamp On Cores 15.5x18.5mm 300MHz Mn-Zn 85C
Datasheet
60In Stock
800Expected 2026/04/20
Min.: 1
Mult.: 1

Ferrite Clamp On Cores Round Manganese Zinc 6 mm 15.5 mm 18.5 mm 14 mm 14 mm ESD-SR Bulk
KEMET Ferrite Clamp On Cores 14.5x15.5x29mm Ni-Zn 65C
Datasheet
19In Stock
400On Order
Min.: 1
Mult.: 1

Ferrite Clamp On Cores Round Nickel Zinc 14.5 mm 33 mm 15.5 mm 29 mm 29 mm ESD-SR Bulk
KEMET Ferrite Clamp On Cores 64x24mm 10MHz Mn-Zn 85C
Datasheet
1In Stock
276On Order
Min.: 1
Mult.: 1

Ferrite Clamp On Cores Round Manganese Zinc 35 mm 64 mm 24 mm 24 mm 24 mm ESD-SR Bulk
KEMET Ferrite Clamp On Cores 6x21x16.5mm Ni-Zn 65C
Datasheet
3,867On Order
Min.: 1
Mult.: 1

Ferrite Clamp On Cores Round Nickel Zinc 6 mm 16.5 mm 21 mm 16.5 mm 16.5 mm ESD-SR Bulk
KEMET Ferrite Clamp On Cores 16x6x33mm Ni-Zn Snap-on
Datasheet
1,133On Order
Min.: 1
Mult.: 1

Ferrite Clamp On Cores Round Nickel Zinc 6 mm 16 mm 33 mm 16.4 mm 16.4 mm ESD-SR Tray
KEMET Ferrite Clamp On Cores 13x38x31.6mm Ni-Zn 65C
Datasheet
1,968On Order
Min.: 1
Mult.: 1

Ferrite Clamp On Cores Round Nickel Zinc 13 mm 31.5 mm 38 mm 31.6 mm 31.6 mm ESD-SR Bulk
KEMET Ferrite Clamp On Cores 30x53x30mm 300MHz Ni-Zn 100C
Datasheet
300Expected 2026/05/28
Min.: 1
Mult.: 1

Ferrite Clamp On Cores Round Nickel Zinc 13 mm 30 mm 42 mm 30 mm 30 mm ESD-SR-H Bulk
KEMET Ferrite Clamp On Cores 6x18.5x14mm Ni-Zn 65C
Datasheet
3,200On Order
Min.: 1
Mult.: 1

Ferrite Clamp On Cores Round Nickel Zinc 6 mm 15.5 mm 18.5 mm 14 mm 14 mm ESD-SR Bulk
KEMET Ferrite Clamp On Cores 53x19mm 10MHz Mn-Zn 85C
Datasheet
456Expected 2026/07/23
Min.: 1
Mult.: 1

Ferrite Clamp On Cores Round Manganese Zinc 26 mm 53 mm 19 mm 19 mm 19 mm ESD-SR Bulk
KEMET Ferrite Clamp On Cores 19.5x46.5x19.5mm 300MHz Ni-Zn 125C
Datasheet
170Expected 2026/03/26
Min.: 1
Mult.: 1

Ferrite Clamp On Cores Round Nickel Zinc 9 mm 19.5 mm 38.5 mm 19.5 mm 19.5 mm ESD-SR-HL Bulk
KEMET Ferrite Clamp On Cores 31.5x13x38mm Ni-Zn Snap-on
Datasheet
140Expected 2026/04/07
Min.: 1
Mult.: 1

Ferrite Clamp On Cores Round Nickel Zinc 13 mm 31.5 mm 38 mm 31.6 mm 31.6 mm ESD-SR Tray
KEMET Ferrite Clamp On Cores 30x13x42mm Ni-Zn AEC-Q200
Datasheet
60Expected 2026/07/23
Min.: 1
Mult.: 1

Ferrite Clamp On Cores Round Nickel Zinc 13 mm 30 mm 42 mm 30 mm 30 mm AEC-Q200 ESD-SR-HL Tray
KEMET Ferrite Clamp On Cores 44x16.5mm 10MHz Mn-Zn 85C
Datasheet
72Expected 2026/04/07
Min.: 1
Mult.: 1

Ferrite Clamp On Cores Round Manganese Zinc 18 mm 44 mm 16.5 mm 16.5 mm 16.5 mm ESD-SR Bulk