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

411 Products showing for Ferrite Rings

Temporarily out of stock
Wurth Elektronik Ferrite Ring EMI Suppression Toroidal Ferrite, For: Multiconductor Wire, Coaxial Cable, Wire, Wrapping
  • RS Stock No. 332-400
  • Mfr. Part No. 74270198
Subtotal (1 tray of 15 units)
$254.19(exc. GST)
$16.946/unit
Temporarily out of stock
Wurth Elektronik Ferrite Ring Toroid Core 20 mm, For: EMI Suppression 35.5 mm ID 20 mm OD
  • RS Stock No. 163-4558
  • Mfr. Part No. 74270191
Subtotal (1 tray of 15 units)
$217.455(exc. GST)
$14.497/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 (1 tray of 15 units)
$190.935(exc. GST)
$12.729/unit
Temporarily out of stock
TDK Ferrite Ring Toroid Core 10 mm, For: Interference Suppressor 20.5 mm ID 34 mm OD
  • RS Stock No. 246-9744
  • Mfr. Part No. B64290L0058X830
Subtotal (1 box of 100 units)
$438.60(exc. GST)
$4.386/unit
In Stock
Wurth Elektronik Ferrite Ring Toroid Core 20 mm, For: EMI Suppression 35.5 mm ID 20 mm OD
  • RS Stock No. 788-0226P
  • Mfr. Part No. 74270191
Subtotal 1 unit (supplied in a tray)
$12.83(exc. GST)
$12.83/unit
In Stock
Wurth Elektronik Ferrite Ring EMI Suppression Toroidal Ferrite 6.35 mm, For: Coaxial Cable, Wrapping Cable, Wire,
  • RS Stock No. 124-1849P
  • Mfr. Part No. 742701716
Subtotal 10 units (supplied in a tray)
$16.44(exc. GST)
$1.644/unit
Temporarily out of stock
Wurth Elektronik Ferrite Ring EMI Suppression Toroidal Ferrite 16 mm, For: Multiconductor Wire, Wire, Wrapping Cable,
  • RS Stock No. 124-1851P
  • Mfr. Part No. 7427011
Subtotal 10 units (supplied in a tray)
$21.28(exc. GST)
$2.128/unit
In Stock
Wurth Elektronik Ferrite Ring Toroid Core 13 mm, For: EMI Suppression 8 mm ID 16.5 mm OD
  • RS Stock No. 124-1545
  • Mfr. Part No. 7427010
Subtotal (1 pack of 10 units)
$28.57(exc. GST)
$2.857/unit
Temporarily out of stock
Wurth Elektronik Ferrite Sleeve
  • RS Stock No. 332-138
  • Mfr. Part No. 782013076508
Subtotal (1 tray of 30 units)
$310.20(exc. GST)
$10.34/unit
In Stock
Wurth Elektronik Ferrite Ring Toroid Core 10 mm, For: EMI Suppression 10.2 mm ID 10 mm OD
  • RS Stock No. 788-0222P
  • Mfr. Part No. 74270182
Subtotal 1 unit (supplied in a tray)
$4.74(exc. GST)
$4.74/unit
Currently unavailable
Distrelec
  • RS Stock No. 609-013
  • Mfr. Part No. FT-50A-43
Subtotal (1 unit)
$1.55(exc. GST)
$1.55/unit
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