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

    0444164181
    0444164181 Fair-Rite Products
    Snap On Free Hanging Ferrite Core - 230Ohm @ 100MHz - ID 0.514" Dia (13.06mm) - OD 1.220" W x 0.600" H (30.99mm x ...
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    In Stock: 2041
    Immediately
    10
    $4.34
    50
    $3.34
    110
    $3.07
    330
    $3.03
    550
    $3.02
    0431163951
    Data Sheet
    0431163951 Fair-Rite Products
    Solid Free Hanging Ferrite Core - 300Ohm @ 100MHz - ID 2.500" Dia (63.50mm) - OD 2.670" W x 0.320" H (67.82mm x 8 ...
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    In Stock: 504
    Immediately
    5
    $6.36
    84
    $4.39
    168
    $4.35
    252
    $4.33
    504
    $4.32
    0431178281
    0431178281 Fair-Rite Products
    Snap On Free Hanging Ferrite Core - 215Ohm @ 500MHz - ID 0.354" Dia (8.99mm) OD 0.846" W x 0.415" H (21.49mm x 10 ...
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    In Stock: 16090
    Immediately
    25
    $1.91
    196
    $1.37
    392
    $1.19
    588
    $1.18
    1,176
    $1.17
    0461164181
    Data Sheet
    0461164181 Fair-Rite Products
    Snap On Free Hanging Ferrite Core - 205Ohm @ 100MHz - ID 0.514" Dia (13.06mm) - OD 1.220" W x 0.600" H (30.99mm x ...
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    In Stock: 4180
    Immediately
    10
    $4.61
    50
    $3.40
    110
    $3.12
    330
    $2.69
    550
    $2.68
    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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    In Stock: 7109
    Immediately
    On Order: 5280
    Ships 11/23/26
    10
    $4.11
    50
    $2.93
    110
    $2.90
    330
    $2.25
    550
    $2.24
    0443178181
    0443178181 Fair-Rite Products
    Round Cable Snap On Ferrite Core - 43 Material (25-300MHz) - Cable Width max 0.161"
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    In Stock: 1262
    Immediately
    On Order: 1008
    Ships 12/14/26
    50
    $1.007
    250
    $0.755
    504
    $0.647
    1,008
    $0.643
    2,520
    $0.640
    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: 3135
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    5
    $12.70
    36
    $9.90
    72
    $9.80
    108
    $9.78
    252
    $9.76
    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: 15103
    Immediately
    25
    $0.958
    250
    $0.623
    504
    $0.581
    1,008
    $0.577
    2,520
    $0.574
    0443665806
    0443665806 Fair-Rite Products
    Round Cable Snap On Ferrite Core - 43 Material (25-300MHz) - Cable Width max 0.343"
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    In Stock: 7180
    Immediately
    On Order: 5280
    Ships 1/25/27
    220
    $0.817
    440
    $0.700
    660
    $0.697
    1,100
    $0.691
    2,640
    $0.689
    0431176451
    Data Sheet
    0431176451 Fair-Rite Products
    Snap On Free Hanging Ferrite Core - 380Ohm @ 100MHz - ID 0.722" Dia (18.34mm) - OD 1.520" W x 0.755" H (38.61mm x ...
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    In Stock: 7294
    Immediately
    On Order: 5040
    Ships 12/14/26
    5
    $10.02
    25
    $6.56
    60
    $5.73
    120
    $5.59
    300
    $5.58