Ferrite Rings

Ferrite rings are toroidal (doughnut) shaped, or cylindrical shaped pieces of ferrite (a ceramic compound).What do they do?Ferrite rings help to protect against EMI (electromagnetic interference) and RFI (radio frequency interference). They prevent interference moving to a device or from a device.How do they 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 they 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.

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Description Price Type Dimensions Application Impedance Material Diameter Height Inner Diameter Outer Diameter Outer Dimensions Outer Height Series Aperture Diameter Number of Apertures
RS Stock No. 239-056
BrandRS PRO
£2.127
Each (In a Pack of 6)
Units
Ferrite Core 15.64 x 6.99 x 28.57mm EMI Suppression - Ferrite, Nickel Zinc - 28.57mm 6.99mm 15.64mm - - - - -
RS Stock No. 239-062
BrandRS PRO
£4.165
Each (In a Pack of 6)
Units
Ferrite Core 12.7 (Dia.) x 28.5mm EMI Suppression - Ferrite 28.5mm 28.57mm 13.77mm 28.5mm - - - - -
RS Stock No. 136-9021
BrandRS PRO
£3.68
Each
Units
Ferrite Ring 50 x 30 x 21.1mm EMI Suppression - - - - - - - - - - -
RS Stock No. 136-8980
BrandRS PRO
£4.27
Each (In a Tray of 140)
Units
Ferrite Ring 36 x 23 x 16.1mm EMI Suppression - K 4000 16mm 16mm 23mm 36mm - - - - -
RS Stock No. 136-9023
BrandRS PRO
£34.71
Each
Units
Ferrite Ring 102 x 65.8 x 16.1mm EMI Suppression - - - - - - - - - - -
RS Stock No. 136-8985
BrandRS PRO
£19.733
Each (In a Tray of 8)
Units
Ferrite Ring 102 x 65.8 x 16.1mm EMI Suppression - K 4000 16.1mm 16.1mm 65.8mm 102mm - - - - -
RS Stock No. 136-9022
BrandRS PRO
£4.68
Each
Units
Ferrite Ring 58.3 x 40.8 x 18.6mm EMI Suppression - - - - - - - - - - -
RS Stock No. 136-9032
BrandRS PRO
£4.70
Each
Units
Ferrite Ring 36 x 23 x 16.1mm EMI Suppression - - - - - - - - - - -
RS Stock No. 136-8984
BrandRS PRO
£3.333
Each (In a Tray of 90)
Units
Ferrite Ring 58.3 x 40.8 x 18.6mm EMI Suppression - K 4000 18.6mm 18.6mm 40.8mm 58.3mm - - - - -
RS Stock No. 136-8983
BrandRS PRO
£3.623
Each (In a Tray of 90)
Units
Ferrite Ring 50 x 30 x 21.1mm EMI Suppression - K 4000 21.1mm 21.1mm 30mm 50mm - - - - -
RS Stock No. 167-8385
Mfr. Part No.B64290L0040X830
BrandEPCOS
£5.249
Each (In a Box of 50)
Units
Ferrite Core 60.1 x 39.2 x 18.8mm Broadband Transformers, Choke, Mixer, Pulse, Transformer - Ferrite N30 - 18.8mm 39.2mm 60.1mm - - - - -
RS Stock No. 212-0803
Mfr. Part No.B64290L0040X830
BrandEPCOS
£8.34
Each
Units
Ferrite Core 60.1 x 39.2 x 18.8mm Broadband Transformers, Choke, Mixer, Pulse, Transformer - Ferrite N30 - 18.8mm 39.2mm 60.1mm - - - - -
RS Stock No. 124-1532
Mfr. Part No.74270090
£2.538
Each (In a Pack of 10)
Units
Axial Ferrite Bead 26 x 13 x 28.5mm Coaxial Cable, Multiconductor Wire, Wires, Wire-Wrapping Cable - 4 W 620 - 28.5mm 13mm 26mm - - - - -
RS Stock No. 167-8296
Mfr. Part No.B64290A0084X830
BrandEPCOS
£27.32
Each (In a Box of 12)
Units
Ferrite Core 102 x 65.8 x 15mm Broadband Transformers, Choke, Mixer, Pulse, Transformer - Copper (Plate), Ferrite (Core) - 16.3mm 63.7mm 104.8mm - - - - -
RS Stock No. 212-0718
Mfr. Part No.B64290A0084X830
BrandEPCOS
£30.55
Each
Units
Ferrite Core 104.8 x 63.7 x 16.3mm Broadband Transformers, Choke, Mixer, Pulse, Transformer - Copper (Plate), Ferrite (Core) - 16.3mm 63.7mm 104.8mm - - - - -
RS Stock No. 163-4552
Mfr. Part No.742701703
£0.879
Each (In a Tray of 130)
Units
Toroid Core 25 x 15 x 12mm EMI Suppression - 7 W 380 12mm 12mm 15mm 25mm - - - - -
RS Stock No. 788-0200
Mfr. Part No.742701703
£1.28
Each
Units
Toroid Core 25 x 15 x 12mm EMI Suppression - 7 W 380 12mm 12mm 15mm 25mm - - - - -
RS Stock No. 212-0875
Mfr. Part No.B64290L0048X830
BrandEPCOS
£2.43
Each
Units
Toroid Core 35.5 (Dia.) x 13.6mm General Electronics - N30 35.5mm 13.6mm 19.2mm 35.5mm - - - - -
RS Stock No. 167-8277
Mfr. Part No.B64290L0048X830
BrandEPCOS
£1.253
Each (In a Box of 100)
Units
Toroid Core 35.5 (Dia.) x 13.6mm General Electronics - N30 35.5mm 13.6mm 19.2mm 35.5mm - - - - -
RS Stock No. 467-4172
Mfr. Part No.5943003801
BrandFair-Rite
£6.52
Each
Units
Toroid Core 61 (Dia.) x 12.7mm Inductive Component - 43 Material 61mm 12.7mm 35.55mm 61mm - - - - -
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