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: 175
Select Image Part # Mfr. Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity. Qty. RoHS Product Type Product Type Minimum Operating Temperature Maximum Operating Temperature Packaging
KEMET Ferrite Toroids / Ferrite Rings 10mm
1,981Expected 2026/06/04
Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings Toroids EMI, Solid Toroidal Cores - 25 C + 85 C Bulk
KEMET Ferrite Toroids / Ferrite Rings Ferrite Bead Incased EMI 13.9mm
584Expected 2026/03/26
Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings Toroids EMI, Solid Toroidal Cores - 25 C + 60 C Bulk
KEMET Ferrite Toroids / Ferrite Rings 15mm
2,129On Order
Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings Toroids EMI, Solid Toroidal Cores - 25 C + 85 C Bulk
KEMET Ferrite Toroids / Ferrite Rings 16mm
600Expected 2026/07/27
Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings Toroids EMI, Solid Toroidal Cores - 25 C + 85 C Bulk
KEMET Ferrite Toroids / Ferrite Rings 19mm
793On Order
Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings Toroids EMI, Solid Toroidal Cores - 25 C + 85 C Bulk
KEMET Ferrite Toroids / Ferrite Rings 32x19.5x9mm Ni-Zn Coated
350Expected 2026/07/23
Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings Toroids - 25 C + 85 C Tray
KEMET Ferrite Toroids / Ferrite Rings 38x19x12.7mm 150kHz Mn-Zn 85C
200Expected 2026/07/23
Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings EMI Cores - 25 C + 85 C Tray
KEMET Ferrite Toroids / Ferrite Rings 50x23x18mm Mn-Zn Case and Tape
220On Order
Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings Toroids - 25 C + 85 C Tray
KEMET Ferrite Toroids / Ferrite Rings Ferrite Bead Incased EMI 25.5mm
90Expected 2026/07/15
Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings Toroids EMI, Solid Toroidal Cores - 25 C + 60 C Bulk
KEMET Ferrite Toroids / Ferrite Rings 61x32.4x24mm Mn-Zn Case and Tape
60Expected 2026/03/26
Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings Toroids - 25 C + 85 C Tray
KEMET Ferrite Toroids / Ferrite Rings 32.4mm
59Expected 2026/04/23
Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings Toroids EMI, Solid Toroidal Cores - 25 C + 85 C Bulk
KEMET Ferrite Toroids / Ferrite Rings 61x33.2x25mm 10MHz Mn-Zn 120C
60Expected 2026/05/28
Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings Toroids - 40 C + 120 C Tray
KEMET Ferrite Clamp On Cores 19.5x46.5x19.5mm 300MHz Ni-Zn 125C
170Expected 2026/03/26
Min.: 1
Mult.: 1

Ferrite Clamp On Cores - 40 C + 125 C Bulk
KEMET Ferrite Toroids / Ferrite Rings Snap-on Ni-Zn High Frequency FM Band Split UL94 V-0 HR1
797On Order
Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings EMI Cores Snap-On Ring Toroidal Core - 25 C + 85 C Tray
KEMET Ferrite Clamp On Cores 31.5x13x38mm Ni-Zn Snap-on
140Expected 2026/04/07
Min.: 1
Mult.: 1

Ferrite Clamp On Cores Snap On Cores Cable Single - 25 C + 85 C Tray
KEMET Ferrite Clamp On Cores 30x13x42mm Ni-Zn AEC-Q200
60Expected 2026/07/23
Min.: 1
Mult.: 1

Ferrite Clamp On Cores Snap On Cores Cable Single - 40 C + 125 C Tray
KEMET Ferrite Clamp On Cores 44x16.5mm 10MHz Mn-Zn 85C
72Expected 2026/04/07
Min.: 1
Mult.: 1

Ferrite Clamp On Cores Ferrite Clamp On Cores Cable Single - 40 C + 85 C Bulk
KEMET Ferrite Cable Cores 4.8x2.4mm 300MHz Ni-Zn Coated Non-Stocked Lead-Time 29 Weeks
Min.: 30,000
Mult.: 5,000

Ferrite Cable Cores Round Cable Cores Solid Shield Bead - 25 C + 85 C Bulk
KEMET Ferrite Cable Cores Split Core Flat 56mm Cable Non-Stocked Lead-Time 23 Weeks
Min.: 1
Mult.: 1

Ferrite Cable Cores Flat Ribbon Cable Cores Split Tube Core - 25 C + 85 C Bulk
KEMET Ferrite Cable Cores 44.5x1.3mm Bare Ni-Zn for Flat Cable Non-Stocked Lead-Time 23 Weeks
Min.: 1
Mult.: 1

Ferrite Cable Cores Flat Ribbon Cable Cores Solid Shield Bead - 25 C + 85 C Tray
KEMET Ferrite Cable Cores 52x1.3mm Bare Ni-Zn for Flat Cable Lead-Time 23 Weeks
Min.: 1
Mult.: 1

Ferrite Cable Cores Flat Ribbon Cable Cores Solid Shield Bead - 25 C + 85 C Tray
KEMET Ferrite Toroids / Ferrite Rings 26x14x15mm Ni-Zn Case and Tape Non-Stocked Lead-Time 23 Weeks
Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings Toroids - 25 C + 85 C Tray
KEMET Ferrite Toroids / Ferrite Rings 25.3x14.8x12.3mm Mn-Zn Coated Lead-Time 23 Weeks
Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings Toroids - 25 C + 85 C Tray
KEMET Ferrite Toroids / Ferrite Rings 51x24.4x19mm 300MHz Ni-Zn 120C Lead-Time 23 Weeks
Min.: 1
Mult.: 1

Ferrite Toroids / Ferrite Rings Toroids - 40 C + 120 C Tray
KEMET Ferrite Toroids / Ferrite Rings 57x36x20mm 150kHz Mn-Zn 85C Non-Stocked Lead-Time 23 Weeks
Min.: 60
Mult.: 15

Ferrite Toroids / Ferrite Rings EMI Cores - 25 C + 85 C Tray