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    Ferrite Cores

    A Ferrite core is a type of magnetic cylindrical core that is made from ferrite, a ferrous material. They are among the most versatile and important pieces of basic electronic equipment and many modern devices would not be able to work without them.

    What do they do?

    Ferrite cores help to protect against radio frequency interference (RFI) and electromagnetic interference (EMI). As well as these materials having the capability of functioning as the core in a transformer, they also have tremendous capabilities in terms of reducing electrical interference moving to or from devices, and are heavily used in radio equipment.

    How are they used?

    These cores are designed for noise suppression and are frequently used in antenna and RFID applications. They can also be incorporated into ferrite core chokes, broadband transformers, inductors and other components.

    They are usually included as standard on various types of computer cables, though people designing digital data equipment and may end up adding additional ferrite sleeves, beads or other components to cables to reduce interference to a specified level.

    85 Products showing for Ferrite Cores

    • RS Stock No. 444-650
    • Mfr. Part No. ESD-R-220814XH-R1
    Each (In a Pack of 5)
    MYR5.95
    KEMET
    EMI Suppression Toroid Core
    22 x 14mm
    EMI Suppression, Round Cable
    Nickel Zinc
    22mm
    -
    • RS Stock No. 444-657
    • Mfr. Part No. ESD-SR-160620X-R1
    Each (In a Pack of 5)
    MYR5.924
    KEMET
    EMI Suppression Toroid Core
    21 x 16.5 x 16.5mm
    EMI Suppression, Round Cable
    MnZn
    16.5mm
    -
    • RS Stock No. 444-658
    • Mfr. Part No. ESD-SR-130527X-R1
    Each (In a Pack of 5)
    MYR7.372
    KEMET
    EMI Suppression Toroid Core
    28 x 14.4 x 14.4mm
    EMI Suppression, Round Cable
    MnZn
    14.4mm
    -
    • RS Stock No. 484-1417
    • Mfr. Part No. 0461164181
    Each
    MYR27.05
    Fair-Rite
    EMI Suppression
    -
    EMI Suppression
    61 Material
    -
    -
    • RS Stock No. 219-2662
    • Mfr. Part No. 0443164151
    Each
    MYR22.63
    Fair-Rite
    Round Cable Snap-Its
    -
    EMI Suppression
    43 Material, 44 Material
    -
    -
    • RS Stock No. 444-660
    • Mfr. Part No. ESD-SR-150632X-R1
    Each (In a Pack of 5)
    MYR8.122
    KEMET
    EMI Suppression Toroid Core
    33 x 16.4 x 16mm
    EMI Suppression, Round Cable
    MnZn
    16mm
    -
    • RS Stock No. 444-651
    • Mfr. Part No. ESD-R-291216XH-R1
    Each (In a Pack of 5)
    MYR8.898
    KEMET
    EMI Suppression Toroid Core
    29 x 16mm
    EMI Suppression, Round Cable
    Nickel Zinc
    29mm
    -
    • RS Stock No. 467-3977
    • Mfr. Part No. 3061990881
    Each (In a Pack of 10)
    MYR3.661
    Fair-Rite
    Antenna & RFID Rods
    4 (Dia.) x 30mm
    Inductive Component
    61 Material
    4mm
    30mm
    • RS Stock No. 444-664
    • Mfr. Part No. ESD-SR-311337X-R1
    Each
    MYR25.74
    KEMET
    EMI Suppression Toroid Core
    31.5 x 38mm
    EMI Suppression, Round Cable
    MnZn
    38mm
    -
    • RS Stock No. 466-9120
    • Mfr. Part No. 0431167281
    Each
    MYR13.18
    Fair-Rite
    Round Cable Snap-Its
    -
    EMI Suppression
    31 Material
    -
    -
    • RS Stock No. 219-2656
    • Mfr. Part No. 0443167251
    Each
    MYR14.96
    Fair-Rite
    Round Cable Snap-Its
    -
    EMI Suppression
    43 Material, 44 Material
    -
    -
    • RS Stock No. 466-9091
    • Mfr. Part No. 0431164281
    Each
    MYR12.02
    Fair-Rite
    Round Cable Snap-Its
    -
    EMI Suppression
    31 Material
    -
    -
    • RS Stock No. 444-654
    • Mfr. Part No. ESD-R-512419XH-R1
    Each
    MYR26.64
    KEMET
    EMI Suppression Toroid Core
    51 x 19mm
    EMI Suppression, Round Cable
    Nickel Zinc
    51mm
    -
    • RS Stock No. 466-9142
    • Mfr. Part No. 0431173951
    Each
    MYR7.29
    Fair-Rite
    Round Cable Snap-Its
    -
    EMI Suppression
    31 Material
    -
    -
    • RS Stock No. 466-9158
    • Mfr. Part No. 0431176451
    Each
    MYR59.83
    Fair-Rite
    Round Cable Snap-Its
    -
    EMI Suppression
    31 Material
    -
    -
    • RS Stock No. 444-663
    • Mfr. Part No. ESD-SR-190938X-R1
    Each (In a Pack of 5)
    MYR11.096
    KEMET
    EMI Suppression Toroid Core
    39 x 20 x 20.2mm
    EMI Suppression, Round Cable
    MnZn
    20mm
    -
    • RS Stock No. 467-2700
    • Mfr. Part No. 2643480002
    Each (In a Pack of 10)
    MYR4.521
    Fair-Rite
    Round Cable Core
    12.3 x 4.95 x 25.4mm
    Suppression Components
    43 Material
    12.3mm
    25.4mm
    • RS Stock No. 466-9085
    • Mfr. Part No. 0431164181
    Each
    MYR23.93
    Fair-Rite
    Round Cable Snap-Its
    -
    EMI Suppression
    31 Material
    -
    -
    • RS Stock No. 444-672
    • Mfr. Part No. ESD-SR-301333XVE-R1
    Each
    MYR27.29
    KEMET
    EMI Suppression Toroid Core
    30.2 x 33.5mm
    Consumer Electronics
    MnZn
    30.2mm
    -
    • RS Stock No. 466-9108
    • Mfr. Part No. 0431164951
    Each
    MYR10.44
    Fair-Rite
    Round Cable Snap-Its
    -
    EMI Suppression
    31 Material
    -
    -
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