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. 239-062
BrandRS PRO
SGD7.95
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. 136-9023
BrandRS PRO
SGD58.30
Each
units
Ferrite Ring 102 x 65.8 x 16.1mm EMI Suppression - - - - - - - - - - -
RS Stock No. 136-8983
BrandRS PRO
SGD9.919
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. 136-8980
BrandRS PRO
SGD7.171
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. 136-9022
BrandRS PRO
SGD8.70
Each
units
Ferrite Ring 58.3 x 40.8 x 18.6mm EMI Suppression - - - - - - - - - - -
RS Stock No. 136-8985
BrandRS PRO
SGD35.776
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. 136-9032
BrandRS PRO
SGD8.98
Each
units
Ferrite Ring 36 x 23 x 16.1mm EMI Suppression - - - - - - - - - - -
RS Stock No. 239-056
BrandRS PRO
SGD4.06
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. 136-9021
BrandRS PRO
SGD16.49
Each
units
Ferrite Ring 50 x 30 x 21.1mm EMI Suppression - - - - - - - - - - -
RS Stock No. 136-8984
BrandRS PRO
SGD9.267
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. 467-4172
Mfr. Part No.5943003801
BrandFair-Rite
SGD7.66
Each
units
Toroid Core 61 (Dia.) x 12.7mm Inductive Component - 43 Material 61mm 12.7mm 35.55mm 61mm - - - - -
RS Stock No. 124-1536
Mfr. Part No.74270052
SGD1.716
Each (In a Pack of 5)
units
Axial Ferrite Bead 16 x 8 x 16mm Coaxial Cable, Multiconductor Wire, Wires, Wire-Wrapping Cable - 3 W 800 - 16mm 8mm 16mm - - - - -
RS Stock No. 124-1542
Mfr. Part No.74270031
SGD0.78
Each (In a Pack of 10)
units
EMI Suppression Axial Ferrite Bead 11.5 x 5 x 20.5mm Coaxial Cable, Multiconductor Wire, Wires, Wire-Wrapping Cable - 4 W 1500 - 20.5mm 5mm 11.5mm - - - - -
RS Stock No. 212-0803
Mfr. Part No.B64290L0040X830
BrandEPCOS
SGD15.96
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. 167-8385
Mfr. Part No.B64290L0040X830
BrandEPCOS
SGD9.012
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. 467-4267
Mfr. Part No.5961000601
BrandFair-Rite
SGD1.634
Each (In a Pack of 5)
units
Toroid Core 21 (Dia.) x 6.35mm Inductive Component - 61 Material 21mm 6.35mm 13.2mm 21mm - - - - -
RS Stock No. 290-6219
Mfr. Part No.B64290L0022X830
BrandEPCOS
SGD5.46
Each
units
Toroid Core 41.8 x 26.2 x 12.5mm - - Ferrite 41.8mm 12.5mm 26.2mm 41.8mm - - - - -
RS Stock No. 167-8299
Mfr. Part No.B64290L0022X830
BrandEPCOS
SGD3.234
Each (In a Box of 100)
units
Toroid Core 41.8 x 26.2 x 12.5mm - - Ferrite 41.8mm 12.5mm 26.2mm 41.8mm - - - - -
RS Stock No. 814-3385
Mfr. Part No.433003080301
BrandFERROXCUBE
SGD36.52
Each
units
Ring Core 63.4 x 37.7 x 25.3mm Interference Suppression Coil, Pulse and Wide Band Transformers - 3E10 Material 63.4mm 25.3mm 37.7mm 63.4mm - - - - -
RS Stock No. 212-0881
Mfr. Part No.B64290L0082X830
BrandEPCOS
SGD11.64
Each
units
Toroid Core 50 (Dia.) x 20mm General Electronics - N30 51.8mm 20mm 28.5mm 51.8mm - - - - -
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