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.
Ferrite Rings
Filters
| Description | Price | Type | Dimensions | Application | Impedance | Material | Diameter | Height | Inner Diameter | Outer Diameter | Outer Dimensions | Inner Dimensions | Outer Height | Series | Aperture Diameter | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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RS Stock No.
124-1532
Mfr. Part No.74270090
BrandWurth Elektronik
|
£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.
163-4552
Mfr. Part No.742701703
BrandWurth Elektronik
|
£1.003
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
BrandWurth Elektronik
|
£1.49
Each
Units
|
Toroid Core | 25 x 15 x 12mm | EMI Suppression | - | 7 W 380 | 12mm | 12mm | 15mm | 25mm | - | - | - | - | - |
|
RS Stock No.
788-0226
Mfr. Part No.74270191
BrandWurth Elektronik
|
£5.07
Each
Units
|
Toroid Core | 61 x 35.5 x 20mm | EMI Suppression | - | 4 W 620 | 20mm | 20mm | 35.5mm | 61mm | - | - | - | - | - |
|
|
RS Stock No.
163-4558
Mfr. Part No.74270191
BrandWurth Elektronik
|
£4.209
Each (In a Tray of 15)
Units
|
Toroid Core | 61 x 35.5 x 20mm | EMI Suppression | - | 4 W 620 | 20mm | 20mm | 35.5mm | 61mm | - | - | - | - | - |
|
RS Stock No.
124-1548
Mfr. Part No.74270081
BrandWurth Elektronik
|
£0.682
Each (In a Pack of 10)
Units
|
Ferrite Core | 14.2 x 8.2 x 28.5mm | General Electronics | - | 3 W 800 | - | 28.5mm | 8.2mm | 14.2mm | - | - | - | - | - |
|
RS Stock No.
144-9783
Mfr. Part No.74270033
BrandWurth Elektronik
|
£0.444
Each (In a Bag of 500)
Units
|
EMI Suppression Axial Ferrite Bead | 9.5 x 4.75 x 9.5mm | Coaxial Cable, Multiconductor Wire, Wires, Wire-Wrapping Cable | - | 3 W 800 | - | 9.5mm | 4.75mm | 9.5mm | - | - | - | - | - |
|
RS Stock No.
124-1541
Mfr. Part No.74270033
BrandWurth Elektronik
|
£0.51
Each (In a Pack of 20)
Units
|
EMI Suppression Axial Ferrite Bead | 9.5 x 4.75 x 9.5mm | Coaxial Cable, Multiconductor Wire, Wires, Wire-Wrapping Cable | - | 3 W 800 | - | 9.5mm | 4.75mm | 9.5mm | - | - | - | - | - |
|
RS Stock No.
124-1549
Mfr. Part No.74270043
BrandWurth Elektronik
|
£1.088
Each (In a Pack of 5)
Units
|
EMI Suppression Axial Ferrite Bead | 15.5 x 7.3 x 28.5mm | Coaxial Cable, Multiconductor Wire, Wires, Wire-Wrapping Cable | - | 3 W 800 | - | 28.5mm | 7.3mm | 15.5mm | - | - | - | - | - |
|
RS Stock No.
124-1535
Mfr. Part No.74270053
BrandWurth Elektronik
|
£1.505
Each (In a Pack of 10)
Units
|
EMI Suppression Axial Ferrite Bead | 16 x 8 x 28.5mm | Coaxial Cable, Multiconductor Wire, Wires, Wire-Wrapping Cable | - | 3 W 800 | - | 28.5mm | 8mm | 16mm | - | - | - | - | - |
|
RS Stock No.
617-1259
Mfr. Part No.74270057
BrandWurth Elektronik
|
£4.59
Each
Units
|
Ferrite Core | 19 (Dia.) x 50.8mm | General Electronics | - | Ferrite | - | 50.8mm | 11.5mm | 19mm | - | - | - | - | - |
|
|
RS Stock No.
163-3523
Mfr. Part No.74270057
BrandWurth Elektronik
|
£2.783
Each (In a Tray of 60)
Units
|
Ferrite Core | 19 (Dia.) x 50.8mm | General Electronics | - | Ferrite | - | 50.8mm | 11.5mm | 19mm | - | - | - | - | - |
|
RS Stock No.
124-1543
Mfr. Part No.74270032
BrandWurth Elektronik
|
£0.685
Each (In a Pack of 10)
Units
|
EMI Suppression Axial Ferrite Bead | 11.5 x 5 x 25mm | Coaxial Cable, Multiconductor Wire, Wires, Wire-Wrapping Cable | - | 4 W 620 | - | 25mm | 5mm | 11.5mm | - | - | - | - | - |
|
RS Stock No.
124-1849
Mfr. Part No.742701716
BrandWurth Elektronik
|
£0.62
Each (In a Pack of 10)
Units
|
EMI Suppression Toroidal Ferrite | 12.7 x 7.9 x 6.35mm | Coaxial Cable, Multiconductor Wire, Wires, Wire-Wrapping Cable | - | 7 W 380 | - | 6.35mm | 7.9mm | 12.7mm | - | - | - | - | - |
|
RS Stock No.
163-4540
Mfr. Part No.74270097
BrandWurth Elektronik
|
£5.469
Each (In a Tray of 15)
Units
|
Toroid Core | 61 x 35.5 x 12.7mm | EMI Suppression | - | 4 W 620 | 12.7mm | 12.7mm | 35.5mm | 61mm | - | - | - | - | - |
|
|
RS Stock No.
788-0143
Mfr. Part No.74270097
BrandWurth Elektronik
|
£6.34
Each
Units
|
Toroid Core | 61 x 35.5 x 12.7mm | EMI Suppression | - | 4 W 620 | 12.7mm | 12.7mm | 35.5mm | 61mm | - | - | - | - | - |
|
RS Stock No.
124-1851
Mfr. Part No.7427011
BrandWurth Elektronik
|
£0.927
Each (In a Pack of 10)
Units
|
EMI Suppression Toroidal Ferrite | 16.5 x 8 x 16mm | Coaxial Cable, Multiconductor Wire, Wires, Wire-Wrapping Cable | - | 4 W 620 | - | 16mm | 8mm | 16.5mm | - | - | - | - | - |
|
RS Stock No.
163-4550
Mfr. Part No.74270151
BrandWurth Elektronik
|
£2.646
Each (In a Tray of 63)
Units
|
Toroid Core | 34.6 x 20.8 x 12.7mm | EMI Suppression | - | 4 W 620 | 12.7mm | 12.7mm | 20.8mm | 34.6mm | - | - | - | - | - |
|
|
RS Stock No.
788-0197
Mfr. Part No.74270151
BrandWurth Elektronik
|
£3.88
Each
Units
|
Toroid Core | 34.6 x 20.8 x 12.7mm | EMI Suppression | - | 4 W 620 | 12.7mm | 12.7mm | 20.8mm | 34.6mm | - | - | - | - | - |
|
RS Stock No.
124-1537
Mfr. Part No.7427005
BrandWurth Elektronik
|
£1.085
Each (In a Pack of 10)
Units
|
Ferrite Core | 16 x 9 x 28mm | General Electronics | - | 4 W 620 | 16mm | 28mm | 9mm | 16mm | - | - | - | - | - |
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