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

370 Products showing for Ferrite Rings

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In Stock
Wurth Elektronik Ferrite Ring Toroid Core 8 mm, For: General Electronics 19 mm ID 31.7 mm OD
  • RS Stock No. 327-5465
  • Mfr. Part No. 74270104
Subtotal (1 unit)
SGD2.14(exc. GST)
SGD2.14/unit
In Stock
KEMET Ferrite Ring Toroidal Core for use with round Cables
  • RS Stock No. 811-8960
  • Mfr. Part No. ESD-R-12S
Subtotal (1 bag of 10 units)
SGD6.01(exc. GST)
SGD0.601/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 (1 pack of 5 units)
SGD20.85(exc. GST)
SGD4.17/unit
In Stock
Wurth Elektronik Ferrite Ring Toroid Core 12 mm, For: EMI Suppression 15 mm ID 12 mm OD
  • RS Stock No. 788-0200P
  • Mfr. Part No. 742701703
Subtotal 1 unit (supplied in a bag)
SGD2.32(exc. GST)
SGD2.32/unit
Temporarily out of stock
KEMET Ferrite Ring Ferrite Ring 4.8 mm, For: EMI Suppression 2.4 mm ID 4.8 mm OD
  • RS Stock No. 888-700
  • Mfr. Part No. B-20L-48B-L
Subtotal (1 pack of 100 units)
SGD19.50(exc. GST)
SGD0.195/unit
Temporarily out of stock
KEMET Ferrite Ring Ferrite Ring 1.2 mm, For: EMI Suppression 1 mm ID 2.5 mm OD
  • RS Stock No. 888-667
  • Mfr. Part No. B-20L-25
Subtotal (1 pack of 50 units)
SGD12.20(exc. GST)
SGD0.244/unit
In Stock
Wurth Elektronik Ferrite Bead EMI Suppression Toroidal Ferrite, For: EMI Suppression 20.7 mm OD
  • RS Stock No. 332-369
  • Mfr. Part No. 782115222150
Subtotal (1 tray of 35 units)
SGD224.70(exc. GST)
SGD6.42/unit
In Stock
Wurth Elektronik Ferrite Ring Ferrite Core 28.5 mm, For: General Electronics 9.5 mm ID 17.5 mm OD
  • RS Stock No. 144-9781
  • Mfr. Part No. 7427009
Subtotal (1 tray of 88 units)
SGD147.664(exc. GST)
SGD1.678/unit
In Stock
RS PRO Ferrite Ring 28 mm, For: RFI Suppression, EMI Suppression 8 mm ID 16 mm OD
  • RS Stock No. 280-8059
Subtotal (1 unit)
SGD1.48(exc. GST)
SGD1.48/unit
In Stock
KEMET Ferrite Ring Toroidal Core for use with round Cables
  • RS Stock No. 811-8991
  • Mfr. Part No. ESD-R-15C-1
Subtotal (1 bag of 5 units)
SGD3.99(exc. GST)
SGD0.798/unit
In Stock
Wurth Elektronik Ferrite Ring Toroid Core 16 mm, For: EMI Suppression 12 mm ID 16 mm OD
  • RS Stock No. 163-4541
  • Mfr. Part No. 74270110
Subtotal (1 tray of 126 units)
SGD314.496(exc. GST)
SGD2.496/unit
In Stock
FERROXCUBE Ferrite Ring Ring Core 15.4 mm, For: Wide Band Transformer, Interference Suppression Coil, Pulse 22.75 mm ID
  • RS Stock No. 814-3360
  • Mfr. Part No. 433003080271
Subtotal (1 unit)
SGD8.92(exc. GST)
SGD8.92/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. 788-0143
  • Mfr. Part No. 74270097
Subtotal (1 unit)
SGD8.99(exc. GST)
SGD8.99/unit
Temporarily out of stock
TDK Ferrite Ring Ferrite Core 16.3 mm, For: Pulse, Transformer, Mixer, Choke, Broadband Transformer 63.7 mm ID 104.8 mm
  • RS Stock No. 212-0718P
  • Mfr. Part No. B64290A0084X830
Subtotal 1 unit (supplied in a box)
SGD63.08(exc. GST)
SGD63.08/unit
Currently unavailable
Distrelec
  • RS Stock No. 609-013
  • Mfr. Part No. FT-50A-43
Subtotal (1 unit)
SGD1.13(exc. GST)
SGD1.13/unit
Last RS stock
TDK Ferrite Ring Toroid Core 2.51 mm, For: General Electronics, Automotive Electronics, Emc Component 3.81 mm ID 6.31 mm
  • RS Stock No. 125-3326
  • Mfr. Part No. B64290P0037X038
Subtotal (1 pack of 50 units)
SGD28.05(exc. GST)
SGD0.561/unit
In Stock
Wurth Elektronik Ferrite Ring Toroid Core 12 mm, For: EMI Suppression 15 mm ID 12 mm OD
  • RS Stock No. 788-0200
  • Mfr. Part No. 742701703
Subtotal (1 unit)
SGD2.32(exc. GST)
SGD2.32/unit
In Stock
Wurth Elektronik Ferrite Ring Toroid Core 12 mm, For: EMI Suppression 13 mm ID 12 mm OD
  • RS Stock No. 163-4547
  • Mfr. Part No. 74270120
Subtotal (1 tray of 126 units)
SGD214.20(exc. GST)
SGD1.70/unit
In 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 (1 pack of 50 units)
SGD42.70(exc. GST)
SGD0.854/unit
In Stock
Essentra Ferrite Ring Ferrite Core 28.5 mm, For: VE/CD 10 mm ID 17.5 mm OD
  • RS Stock No. 261-9000
  • Mfr. Part No. RI 18 10 28
Subtotal (1 unit)
SGD8.99(exc. GST)
SGD8.99/unit
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