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

    0444164951
    Data Sheet
    0444164951 Fair-Rite Products
    Snap On Free Hanging Ferrite Core - 245Ohm @ 100MHz - ID 0.201" Dia (5.11mm) - OD 0.680" W x 0.331" H (17.27mm x ...
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    In Stock: 4300
    Can Ship immediately 
    On Order: 5292
    Ships 11/30/26
    25
    $1.449
    294
    $1.015
    588
    $0.840
    1,176
    $0.838
    2,646
    $0.836
    0443178281
    0443178281 Fair-Rite Products
    Round Cable Snap On Ferrite Core - 43 Material (25-300MHz) - Cable Width max 0.362"
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    In Stock: 638
    Can Ship immediately 
    196
    $1.135
    392
    $0.995
    588
    $0.987
    1,176
    $0.927
    2,548
    $0.924
    0431164181
    Data Sheet
    0431164181 Fair-Rite Products
    Snap On Free Hanging Ferrite Core - 260Ohm @ 100MHz - ID 0.514" Dia (13.06mm) - OD 1.220" W x 0.600" H (30.99mm x ...
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    In Stock: 7389
    Can Ship immediately 
    On Order: 50270
    Ships 12/28/26
    110
    $2.54
    330
    $1.95
    550
    $1.94
    1,100
    $1.93
    2,530
    $1.92
    0443167251
    Data Sheet
    0443167251 Fair-Rite Products
    Snap On Free Hanging Ferrite Core - 225Ohm @ 100MHz - ID 0.400" Dia (10.16mm) - OD 0.870" W x 0.433" H (22.10mm x ...
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    In Stock: 33368
    Can Ship immediately 
    25
    $1.69
    196
    $1.31
    392
    $1.14
    588
    $1.13
    1,176
    $1.12
    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
    Can Ship immediately 
    220
    $1.018
    440
    $0.961
    660
    $0.940
    1,100
    $0.938
    2,640
    $0.910
    0446164181
    Data Sheet
    0446164181 Fair-Rite Products
    Round Cable Snap On Ferrite Core - 46 Material (25-300MHz) - Cable Width max 0.5"
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    In Stock: 570
    Can Ship immediately 
    110
    $2.15
    330
    $1.91
    550
    $1.90
    1,100
    $1.89
    2,530
    $1.88
    0443625006
    0443625006 Fair-Rite Products
    Snap On Free Hanging Ferrite Core - 113Ohm @ 100MHz - ID 0.311" Dia (7.90mm) - OD 0.972" W x 0.402" H (24.69mm x ...
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    In Stock: 5060
    Can Ship immediately 
    220
    $0.640
    440
    $0.633
    660
    $0.581
    1,100
    $0.576
    2,640
    $0.574
    0431178181
    Data Sheet
    0431178181 Fair-Rite Products
    Ferrite Clamp On Cores Low & BB Freq 31 Mat 183Ohm @250MHz Round
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    On Order: 24304
    Ships 2/15/27
    25
    $1.190
    250
    $0.838
    504
    $0.762
    1,008
    $0.755
    2,520
    $0.753
    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: 9198
    Can Ship immediately 
    50
    $0.974
    250
    $0.695
    504
    $0.624
    1,008
    $0.618
    2,520
    $0.616
    0446164251
    Data Sheet
    0446164251 Fair-Rite Products
    Round Cable Snap On Ferrite Core - 46 Material (25-300MHz) - Cable Width max 0.5"
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    In Stock: 3527
    Can Ship immediately 
    196
    $1.63
    392
    $1.11
    588
    $1.10
    1,176
    $1.04
    2,548
    $1.03