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
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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.
212-0982
Mfr. Part No.B64290L0674X830
BrandEPCOS
|
MYR15.14
Each
units
|
Toroid Core | 37.5 (Dia.) x 16.2mm | General Electronics | - | N30 | 37.5mm | 16.2mm | 23mm | 37.5mm | - | - | - | - | - |
|
|
RS Stock No.
167-8285
Mfr. Part No.B64290L0674X830
BrandEPCOS
|
MYR12.635
Each (In a Box of 100)
units
|
Toroid Core | 37.5 (Dia.) x 16.2mm | General Electronics | - | N30 | 37.5mm | 16.2mm | 23mm | 37.5mm | - | - | - | - | - |
|
RS Stock No.
167-8296
Mfr. Part No.B64290A0084X830
BrandEPCOS
|
MYR128.043
Each (In a Box of 12)
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.
212-0718
Mfr. Part No.B64290A0084X830
BrandEPCOS
|
MYR128.15
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.
212-0803
Mfr. Part No.B64290L0040X830
BrandEPCOS
|
MYR62.89
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
|
MYR38.903
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.
170-1372
Mfr. Part No.B64290L0618X038
BrandEPCOS
|
MYR5.363
Each (On a Reel of 500)
units
|
Toroid Core | 26.6 x 13.5 x 11mm | Automotive Electronics, EMC Components, General Electronics | - | T38 | - | 11mm | 13.5mm | 26.6mm | - | - | - | - | - |
|
RS Stock No.
467-4172
Mfr. Part No.5943003801
BrandFair-Rite
|
MYR35.33
Each
units
|
Toroid Core | 61 (Dia.) x 12.7mm | Inductive Component | - | 43 Material | 61mm | 12.7mm | 35.55mm | 61mm | - | - | - | - | - |
|
|
RS Stock No.
125-3317
Mfr. Part No.B64290L0618X038
BrandEPCOS
|
MYR6.231
Each (In a Pack of 10)
units
|
Toroid Core | 26.6 x 13.5 x 11mm | Automotive Electronics, EMC Components, General Electronics | - | T38 | - | 11mm | 13.5mm | 26.6mm | - | - | - | - | - |
|
RS Stock No.
167-8333
Mfr. Part No.B64290L0082X830
BrandEPCOS
|
MYR40.965
Each (In a Box of 40)
units
|
Toroid Core | 50 (Dia.) x 30mm | General Electronics | - | N30 | 51.8mm | 30mm | 28.5mm | 51.8mm | - | - | - | - | - |
|
RS Stock No.
788-0226
Mfr. Part No.74270191
BrandWurth Elektronik
|
MYR34.63
Each
units
|
Toroid Core | 61 x 35.5 x 20mm | EMI Suppression | - | 4 W 620 | 20mm | 20mm | 35.5mm | 61mm | - | - | - | - | - |
|
|
RS Stock No.
212-0881
Mfr. Part No.B64290L0082X830
BrandEPCOS
|
MYR50.46
Each
units
|
Toroid Core | 50 (Dia.) x 20mm | General Electronics | - | N30 | 51.8mm | 20mm | 28.5mm | 51.8mm | - | - | - | - | - |
|
|
RS Stock No.
163-4558
Mfr. Part No.74270191
BrandWurth Elektronik
|
MYR33.049
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.
644-1261
Mfr. Part No.HF70BB6.4X5X3.2
BrandTDK
|
MYR0.706
Each (In a Pack of 10)
units
|
Bead | 6.4 x 3.2 x 5mm | Audio Equipment, Automotive, Computer Peripherals, Digital Interface, EMI Absorption, Imaging Devices, Telecom | - | Nickel Zinc | 6.4mm | 5mm | 3.2mm | 6.4mm | - | - | - | - | - |
|
RS Stock No.
467-5074
Mfr. Part No.2643665702
BrandFair-Rite
|
MYR5.97
Each (In a Pack of 5)
units
|
Round Cable Core | 17.45 x 9.5 x 28.6mm | Suppression Components | - | 43 Material | 17.45mm | 28.6mm | 9.5mm | 17.45mm | - | - | - | - | - |
|
RS Stock No.
167-8299
Mfr. Part No.B64290L0022X830
BrandEPCOS
|
MYR16.27
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.
290-6219
Mfr. Part No.B64290L0022X830
BrandEPCOS
|
MYR15.49
Each
units
|
Toroid Core | 41.8 x 26.2 x 12.5mm | - | - | Ferrite | 41.8mm | 12.5mm | 26.2mm | 41.8mm | - | - | - | - | - |
|
RS Stock No.
212-0875
Mfr. Part No.B64290L0048X830
BrandEPCOS
|
MYR21.71
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
|
MYR9.718
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.
124-1549
Mfr. Part No.74270043
BrandWurth Elektronik
|
MYR14.176
Each (In a Pack of 5)
units
|
EMI Suppression Axial Ferrite Bead | 15.5 x 7.3 x 28.5mm | Coaxial Cable, Multiconductor Wire, Wire-Wrapping Cable, Wires | - | 3 W 800 | - | 28.5mm | 7.3mm | 15.5mm | - | - | - | - | - |
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