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. 290-6219
Mfr. Part No.B64290L0022X830
BrandEPCOS
PHP219.45
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
PHP121.28
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. 212-0825
Mfr. Part No.B64290L0044X038
BrandEPCOS
PHP20.89
Each (In a Pack of 5)
units
Ferrite Core 13.6 (Dia.) x 5.95mm - - T38 13.6mm 5.95mm 6.5mm 12.5mm - - - - -
RS Stock No. 167-8385
Mfr. Part No.B64290L0040X830
BrandEPCOS
PHP355.43
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. 167-8264
Mfr. Part No.B64290L0044X038
BrandEPCOS
PHP9.151
Each (In a Box of 1500)
units
Ferrite Core 13.6 (Dia.) x 5.95mm - - T38 13.6mm 5.95mm 6.5mm 12.5mm - - - - -
RS Stock No. 212-0803
Mfr. Part No.B64290L0040X830
BrandEPCOS
PHP564.90
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. 212-0926
Mfr. Part No.B64290L0618X830
BrandEPCOS
PHP61.95
Each (In a Pack of 5)
units
Toroid Core 26.6 (Dia.) x 11mm General Electronics - N30 26.8mm 11mm 13.5mm 26.6mm - - - - -
RS Stock No. 162-0149
Mfr. Part No.B64290L0618X830
BrandEPCOS
PHP31.03
Each (In a Box of 500)
units
Toroid Core 26.6 (Dia.) x 11mm General Electronics - N30 26.8mm 11mm 13.5mm 26.6mm - - - - -
RS Stock No. 212-0982
Mfr. Part No.B64290L0674X830
BrandEPCOS
PHP175.64
Each
units
Toroid Core 37.5 (Dia.) x 16.2mm General Electronics - N30 37.5mm 16.2mm 23mm 37.5mm - - - - -
RS Stock No. 212-0881
Mfr. Part No.B64290L0082X830
BrandEPCOS
PHP527.50
Each
units
Toroid Core 50 (Dia.) x 20mm General Electronics - N30 51.8mm 20mm 28.5mm 51.8mm - - - - -
RS Stock No. 212-0718
Mfr. Part No.B64290A0084X830
BrandEPCOS
PHP1,047.15
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. 170-1375
Mfr. Part No.B64290L0674X038
BrandEPCOS
PHP146.682
Each (On a Reel of 100)
units
Toroid Core 37.5 x 21.7 x 16.2mm Automotive Electronics, EMC Components, General Electronics - T37 - 16.2mm 21.7mm 37.5mm - - - - -
RS Stock No. 170-1364
Mfr. Part No.B64290L0044X087
BrandEPCOS
PHP6.09
Each (On a Reel of 1500)
units
Toroid Core 13.6 x 6.5 x 5.95mm Automotive Electronics, EMC Components, General Electronics - N87 - 5.95mm 6.5mm 13.6mm - - - - -
RS Stock No. 167-8296
Mfr. Part No.B64290A0084X830
BrandEPCOS
PHP852.08
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. 167-8333
Mfr. Part No.B64290L0082X830
BrandEPCOS
PHP356.888
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. 212-0869
Mfr. Part No.B64290L0045X830
BrandEPCOS
PHP29.93
Each (In a Pack of 5)
units
Ferrite Core 17.2 (Dia.) x 7.3mm - - N30 17.2mm 7.3mm 9.6mm 16mm - - - - -
RS Stock No. 125-3320
Mfr. Part No.B64290L0674X038
BrandEPCOS
PHP267.575
Each (In a Pack of 2)
units
Toroid Core 37.5 x 21.7 x 16.2mm Automotive Electronics, EMC Components, General Electronics - T38 - 16.2mm 21.7mm 37.5mm - - - - -
RS Stock No. 170-1377
Mfr. Part No.B64290L0699X087
BrandEPCOS
PHP503.999
Each (On a Reel of 30)
units
Toroid Core 65.3 x 36 x 26.6mm Automotive Electronics, EMC Components, General Electronics - N87 - 26.6mm 36mm 65.3mm - - - - -
RS Stock No. 125-3310
Mfr. Part No.B64290L0044X087
BrandEPCOS
PHP13.76
Each (In a Pack of 50)
units
Toroid Core 13.6 x 6.5 x 5.95mm Automotive Electronics, EMC Components, General Electronics - N87 - 5.95mm 6.5mm 13.6mm - - - - -
RS Stock No. 167-8375
Mfr. Part No.B64290L0045X830
BrandEPCOS
PHP13.403
Each (In a Box of 2000)
units
Ferrite Core 17.2 (Dia.) x 7.3mm General Electronics - N30 17.2mm 7.3mm 9.6mm 16mm - - - - -