Ferrite Rings

Ferrite rings are toroidal (doughnut) shaped, or cylindrical shaped pieces of ferrite (a ceramic compound).

What do ferrite rings do?

Ferrite rings help to protect against Electromagnetic Interference) (EMI) and Radio Frequency interference (RFI). They prevent interference moving to a device or from a device

How do ferrite rings work?

Ferrite rings can suppress noise without grounding. Ferrites are able to attract magnetic flux. When a cable is passed through the ring, the magnetic fields created by the cable are concentrated within the ferrite ring. This magnetic energy is converted to heat and the ferrite dissipates this by magnetic loss.

How are ferrite rings used?

Ferrite rings can often be seen with cables threaded through them. They are common place in electronics to help with noise suppression. The cable can also be wrapped about the ferrite ring numerous times. Ferrite rings can be incorporated into broadband transformers, pulse transformers and common mode chokes.

 Applications

  • Digital Audio systems
  • Computers
  • Sensitive electrical equipment

479 Products showing for Ferrite Rings

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In Stock
Wurth Elektronik Ferrite Ring Toroid Core 16 mm, For: General Electronics 19 mm ID 31.5 mm OD
  • RS stock no. 327-5471
  • Mfr. Part No. 74270115
Subtotal (1 unit)
R 114,84(exc. VAT)
R 114,84/unit
In Stock
Fair-Rite Ferrite Ring Ferrite Ring 6.35 mm, For: Broadband Transformer, Pulse, Power Input Filter, Common Mode Filter,
  • RS stock no. 255-5211
  • Mfr. Part No. 5967000601
Subtotal (1 unit)
R 50,88(exc. VAT)
R 50,88/unit
Temporarily out of stock
KEMET Ferrite Ring Toroidal Core for use with round Cables
  • RS stock no. 811-8979
  • Mfr. Part No. ESD-R-14A
Subtotal (10 units, in bags of 10)
R 80,16(exc. VAT)
R 8,016/unit
In Stock
Essentra Ferrite Ring Ferrite Core 14.5 mm, For: Filtering 5 mm ID 9.5 mm OD
  • RS stock no. 257-4474
  • Mfr. Part No. RRH095-050-145-K5B
Subtotal (5 units, in packs of 5)
R 136,91(exc. VAT)
R 27,382/unit
In Stock
TDK Ferrite Ring Ferrite Core 18.8 mm, For: Transformer, Choke, Broadband Transformer, Pulse, Mixer 39.2 mm ID 60.1 mm
  • RS stock no. 212-0803P
  • Mfr. Part No. B64290L0040X830
Subtotal (1 unit, supplied in a box)
R 216,58(exc. VAT)
R 216,58/unit
In Stock
TDK Ferrite Ring Toroid Core 10 mm, For: Interference Suppressor 20.5 mm ID 34 mm OD
  • RS stock no. 246-9745
  • Mfr. Part No. B64290L0058X830
Subtotal (1 unit)
R 55,79(exc. VAT)
R 55,79/unit
In Stock
Fair-Rite Ferrite Ring Ferrite Ring 12.7 mm, For: Pulse, Ground Fault Interrupter, Broadband Transformer, Power Input
  • RS stock no. 255-5247
  • Mfr. Part No. 5978003801
Subtotal (1 unit)
R 239,53(exc. VAT)
R 239,53/unit
In Stock
Fair-Rite Ferrite Ring Ferrite Ring 9.5 mm, For: Broadband Transformer, Ground Fault Interrupter, Common Mode Filter,
  • RS stock no. 255-5197
  • Mfr. Part No. 5961001701
Subtotal (1 unit)
R 65,03(exc. VAT)
R 65,03/unit
In Stock
Fair-Rite Ferrite Ring Ferrite Ring 12.7 mm, For: Ground Fault Interrupter, Power Input Filter, Pulse, Broadband
  • RS stock no. 255-5221
  • Mfr. Part No. 5967001901
Subtotal (1 unit)
R 33,18(exc. VAT)
R 33,18/unit
In Stock
TDK Ferrite Ring Toroid Core 17.2 mm, For: Mixer, Broadband Transformer, Pulse Transformer, Choke 22.5 mm ID 41.8 mm OD
  • RS stock no. 212-0976
  • Mfr. Part No. B64290L0659X830
Subtotal (1 unit)
R 132,54(exc. VAT)
R 132,54/unit
In Stock
Fair-Rite Ferrite Ring Ferrite Ring 6.35 mm, For: Pulse, Ground Fault Interrupter, Broadband Transformer, Power Input
  • RS stock no. 255-5195
  • Mfr. Part No. 5961001101
Subtotal (5 units, in packs of 5)
R 80,39(exc. VAT)
R 16,078/unit
Temporarily out of stock
Fair-Rite Ferrite Ring Toroid Core 3.3 mm 4.75 mm ID 9.5 mm OD
  • RS stock no. 467-4239
  • Mfr. Part No. 5961000201
Subtotal (25 units, in packs of 25)
R 121,075(exc. VAT)
R 4,843/unit
In Stock
Fair-Rite Ferrite Ring Ferrite Ring 12.7 mm, For: Common Mode Filter, Pulse, Power Input Filter, Ground Fault
  • RS stock no. 255-5205
  • Mfr. Part No. 5961003801
Subtotal (1 unit)
R 349,59(exc. VAT)
R 349,59/unit
In Stock
Fair-Rite Ferrite Ring Ferrite Ring 12.7 mm, For: Ground Fault Interrupter, Broadband Transformer, Common Mode Filter,
  • RS stock no. 255-5181
  • Mfr. Part No. 5943006401
Subtotal (1 unit)
R 49,82(exc. VAT)
R 49,82/unit
Temporarily out of stock
Fair-Rite Ferrite Ring Ferrite Ring 12.7 mm, For: Power Input Filter, Common Mode Filter, Broadband Transformer, Ground
  • RS stock no. 255-5244
  • Mfr. Part No. 5977003801
Subtotal (100 units, in boxes of 100)
R 11 594,40(exc. VAT)
R 115,944/unit
Currently unavailable
Fair-Rite Ferrite Core Round Cable Core 6.35 mm, For: EMI Suppression 7.9 mm ID 12.7 mm OD
  • RS stock no. 467-2918
  • Mfr. Part No. 2643801102
Subtotal (50 units, in packs of 50)
R 247,55(exc. VAT)
R 4,951/unit
In Stock
Wurth Elektronik Ferrite Ring Toroid Core 12.7 mm, For: EMI Suppression 35.5 mm ID 61 mm OD
  • RS stock no. 788-0143P
  • Mfr. Part No. 74270097
Subtotal (1 unit, supplied in a tray)
R 157,35(exc. VAT)
R 157,35/unit
In Stock
Wurth Elektronik Ferrite Ring Ferrite Core 28 mm, For: General Electronics 9 mm ID 16 mm OD
  • RS stock no. 124-1537
  • Mfr. Part No. 7427005
Subtotal (10 units, in packs of 10)
R 260,77(exc. VAT)
R 26,077/unit
In Stock
Wurth Elektronik Ferrite Ring Toroid Core 12.7 mm, For: EMI Suppression 35.5 mm ID 61 mm OD
  • RS stock no. 163-4540
  • Mfr. Part No. 74270097
Subtotal (15 units, in trays of 15)
R 1 753,725(exc. VAT)
R 116,915/unit
In Stock
Wurth Elektronik Ferrite Bead EMI Suppression Toroidal Ferrite, For: EMI Suppression 2.7 mm OD
  • RS stock no. 332-365
  • Mfr. Part No. 782115020030
Subtotal (1 unit)
R 4,39(exc. VAT)
R 4,39/unit
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