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
Fair-Rite Ferrite Ring Ferrite Ring 6.35 mm, For: Common Mode Filter, Ground Fault Interrupter, Power Input Filter,
  • RS stock no. 255-5207
  • Mfr. Part No. 5961004901
Subtotal (5 units, in packs of 5)
R 84,45(exc. VAT)
R 16,89/unit
Limited stock
Fair-Rite Ferrite Ring Ferrite Ring 4.9 mm, For: Common Mode Filter, Broadband Transformer, Pulse, Power Input Filter,
  • RS stock no. 255-5186
  • Mfr. Part No. 5961000301
Subtotal (280 units, in bags of 280)
R 1 334,48(exc. VAT)
R 4,766/unit
In Stock
Fair-Rite Ferrite Ring Ferrite Ring 11.9 mm, For: Power Input Filter, Ground Fault Interrupter, Pulse, Common Mode
  • RS stock no. 255-5189
  • Mfr. Part No. 5961000501
Subtotal (5 units, in packs of 5)
R 203,56(exc. VAT)
R 40,712/unit
Last RS stock
Fair-Rite Ferrite Core Round Cable Core 25.4 mm, For: Suppression Components 4.95 mm ID 12.3 mm OD
  • RS stock no. 467-2700
  • Mfr. Part No. 2643480002
Subtotal (10 units, in packs of 10)
R 146,49(exc. VAT)
R 14,649/unit
In Stock
Fair-Rite Ferrite Bead Toroid Core 12.7 mm 35.55 mm ID 61 mm OD
  • RS stock no. 467-4172
  • Mfr. Part No. 5943003801
Subtotal (1 unit)
R 200,99(exc. VAT)
R 200,99/unit
In Stock
Wurth Elektronik Ferrite Ring EMI Suppression 15 mm, For: Electromagnetic Interface 8.5 mm ID 12 mm OD
  • RS stock no. 123-4230
  • Mfr. Part No. 7427006
Subtotal (8 units, in packs of 8)
R 140,80(exc. VAT)
R 17,60/unit
In Stock
TDK Ferrite Ring Toroid Core 11 mm, For: General Electronics 13.5 mm ID 26.8 mm OD
  • RS stock no. 212-0926
  • Mfr. Part No. B64290L0618X830
Subtotal (5 units, in packs of 5)
R 138,10(exc. VAT)
R 27,62/unit
In Stock
TDK Ferrite Ring Toroid Core 25 mm, For: Interference Suppressor 38 mm ID 63 mm OD
  • RS stock no. 246-9752
  • Mfr. Part No. B64290L0699X065
Subtotal (1 unit)
R 340,06(exc. VAT)
R 340,06/unit
In Stock
Fair-Rite Ferrite Ring Ferrite Ring 6.35 mm, For: Broadband Transformer, Power Input Filter, Pulse, Common Mode Filter,
  • RS stock no. 255-5239
  • Mfr. Part No. 5977000601
Subtotal (5 units, in packs of 5)
R 126,94(exc. VAT)
R 25,388/unit
Limited stock
Fair-Rite Ferrite Ring Ferrite Ring 4.9 mm, For: Common Mode Filter, Broadband Transformer, Pulse, Power Input Filter,
  • RS stock no. 255-5187
  • Mfr. Part No. 5961000301
Subtotal (5 units, in packs of 5)
R 85,88(exc. VAT)
R 17,176/unit
In Stock
Wurth Elektronik Ferrite Bead EMI Suppression Toroidal Ferrite, For: EMI Suppression 20.7 mm OD
  • RS stock no. 332-370
  • Mfr. Part No. 782115222150
Subtotal (2 units, in bags of 2)
R 163,59(exc. VAT)
R 81,795/unit
In Stock
Wurth Elektronik Ferrite Ring Toroid Core 5 mm, For: EMI Suppression 5 mm ID 5 mm OD
  • RS stock no. 788-0216
  • Mfr. Part No. 74270176
Subtotal (5 units, in bags of 5)
R 60,70(exc. VAT)
R 12,14/unit
Limited stock
Wurth Elektronik Ferrite Ring EMI Suppression 4 mm, For: Electromagnetic Interface 1.6 mm ID 4.1 mm OD
  • RS stock no. 123-4235
  • Mfr. Part No. 74270012
Subtotal (50 units, in packs of 50)
R 642,75(exc. VAT)
R 12,855/unit
Currently unavailable
TDK Ferrite Ring Toroid Core 4.75 mm, For: Emc Component, General Electronics, Automotive Electronics 5.25 mm ID 10.8 mm
  • RS stock no. 170-1363
  • Mfr. Part No. B64290L0038X087
Subtotal (3000 units, on reels of 3000)
R 15 033,00(exc. VAT)
R 5,011/unit
Temporarily out of stock
Fair-Rite Ferrite Ring Toroid Core 13.8 mm, For: Broadband Transformer 19 mm ID 29 mm OD
  • RS stock no. 467-4295
  • Mfr. Part No. 5961001201
Subtotal (5 units, in packs of 5)
R 285,35(exc. VAT)
R 57,07/unit
Temporarily out of stock
Essentra Ferrite Ring Toroid Core 12 mm, For: Multi-Turn Suppression Core 15 mm ID 25 mm OD
  • RS stock no. 257-4452
  • Mfr. Part No. RT250-150-120 K5B
Subtotal (5 units, in packs of 5)
R 336,72(exc. VAT)
R 67,344/unit
In Stock
Fair-Rite Ferrite Ring Toroid Core 23 mm 12.7 mm ID 35.55 mm OD
  • RS stock no. 467-4554
  • Mfr. Part No. 5978002701
Subtotal (5 units, in packs of 5)
R 251,76(exc. VAT)
R 50,352/unit
Temporarily out of stock
Wurth Elektronik Ferrite Ring Toroid Core 10 mm, For: EMI Suppression 10 mm ID 10 mm OD
  • RS stock no. 163-4554
  • Mfr. Part No. 742701707
Subtotal (165 units, in trays of 165)
R 3 171,465(exc. VAT)
R 19,221/unit
Currently unavailable
Fair-Rite Ferrite Ring Round Cable Core, For: Suppression Components, 6.35 x 2.95 x 25.4mm
  • RS stock no. 172-9985
  • Mfr. Part No. 2631250202
Subtotal (50 units, in boxes of 50)
R 783,25(exc. VAT)
R 15,665/unit
In Stock
Wurth Elektronik Ferrite Ring Toroid Core 3.7 mm, For: EMI Suppression 5 mm ID 3.7 mm OD
  • RS stock no. 788-0207
  • Mfr. Part No. 74270161
Subtotal (5 units, in bags of 5)
R 141,14(exc. VAT)
R 28,228/unit
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