Fair-Rite Suppression Product Selector Guide

Conducted EMI can occur over a wide range of frequencies, from as low as 1MHz to several GHz. Fair-Rite offers a complete line of suppression ferrites that cover a gamut of frequencies. If you are late in the design phase & fixing the EMI at the board level isn’t feasible, we also offer clamp-on cores for interconnecting cable assemblies.

  • Predictable and repeatable impedance to enhance signal integrity
  • Snap-It cores available in a wide range of core sizes. Fair-Rite has catalog products available to support a wide range of cable diameters – from 3.5mm (.137”) up to 101.6mm (4”)
  • UL94V0 rated polypropylene snap-it case
  • Available in FR75 ferrite blend – superior low frequency performance
  • Available in a wide range of ferrite blends to cover 150KHz to 1 GHz
  • Engineering Kits available in all snap its including 31 Material, 43 Material, 46 Material, 61 Material and 75 Material
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53 Products

    0461167281
    Data Sheet
    0461167281 Fair-Rite Products
    Snap On Free Hanging Ferrite Core - 175Ohm @ 100MHz - ID 0.400" Dia (10.16mm) - OD 0.933" W x 0.460" H (23.70mm x ...
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    In Stock: 6985
    Immediately
    25
    $2.14
    196
    $1.50
    392
    $1.42
    588
    $1.41
    1,176
    $1.40
    0443800506
    Data Sheet
    0443800506 Fair-Rite Products
    Round Cable Snap On Ferrite Core - 43 Material (25-300MHz) - Cable Width max 0.504"
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    In Stock: 439
    Immediately
    220
    $0.887
    440
    $0.767
    660
    $0.765
    1,100
    $0.760
    2,640
    $0.758
    0446167281
    Data Sheet
    0446167281 Fair-Rite Products
    Round Cable Snap On Ferrite Core - 46 Material (25-300MHz) - Cable Width max 0.388"
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    In Stock: 282
    Immediately
    On Order: 1176
    Ships 8/3/26
    196
    $1.22
    392
    $1.09
    588
    $1.08
    1,176
    $1.07
    2,548
    $1.06
    0446164151
    Data Sheet
    0446164151 Fair-Rite Products
    Ferrite Core Round Cable Snap-Its 46-Material
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    In Stock: 501
    Immediately
    110
    $2.162
    330
    $2.127
    550
    $2.117
    1,100
    $2.112
    2,530
    $2.106
    0431173551
    Data Sheet
    0431173551 Fair-Rite Products
    Snap On Free Hanging Ferrite Core - 220Ohm @ 100MHz - ID 0.740" Dia (18.80mm) - OD 1.150" W x 0.579" H (29.21mm x ...
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    On Order: 12131
    Ships 8/17/26
    10
    $3.63
    50
    $2.88
    110
    $2.41
    330
    $2.20
    550
    $2.19
    0461178181
    0461178181 Fair-Rite Products
    Snap On Free Hanging Ferrite Core - 115Ohm @ 100MHz - ID 0.169" Dia (4.29mm) OD 0.465" W x 0.221" H (11.81mm x 5. ...
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    In Stock: 4002
    Immediately
    On Order: 5040
    Ships 10/5/26
    25
    $1.163
    250
    $0.825
    504
    $0.810
    1,008
    $0.801
    2,520
    $0.800
    0443163951
    Data Sheet
    0443163951 Fair-Rite Products
    Flat Cable Snap On Ferrite Core - 43 Material (25-300MHz) - Cable Width max 2.00"
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    In Stock: 210
    Immediately
    5
    $8.76
    25
    $5.40
    84
    $4.54
    168
    $4.50
    252
    $4.49
    0446173951
    0446173951 Fair-Rite Products
    Round Cable Snap On Ferrite Core - 46 Material (25-300MHz) - Cable Width max 0.193"
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    In Stock: 10356
    Immediately
    50
    $0.952
    250
    $0.679
    504
    $0.663
    1,008
    $0.657
    2,520
    $0.655
    0431173951
    0431173951 Fair-Rite Products
    Snap On Free Hanging Ferrite Core - 180Ohm @ 100MHz - ID 0.201" Dia (5.11mm) - OD 0.504" W x 0.220" H (12.80mm x ...
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    In Stock: 8080
    Immediately
    25
    $1.005
    250
    $0.657
    504
    $0.558
    1,008
    $0.536
    2,520
    $0.535
    0431177081
    Data Sheet
    0431177081 Fair-Rite Products
    Snap On Free Hanging Ferrite Core - 375Ohm @ 100MHz - ID 1.010" Dia (25.65mm) OD 2.220" W x 1.080" H (56.39mm x 2 ...
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    In Stock: 917
    Immediately
    On Order: 1728
    Ships 9/7/26
    5
    $13.05
    36
    $9.91
    72
    $9.81
    108
    $9.79
    252
    $9.75