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
$8.495
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. 239-056
BrandRS PRO
$5.585
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. 136-9032
BrandRS PRO
$9.59
Each
units
Ferrite Ring 36 x 23 x 16.1mm EMI Suppression - - - - - - - - - - -
RS Stock No. 136-8984
BrandRS PRO
$10.748
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. 136-9022
BrandRS PRO
$18.18
Each
units
Ferrite Ring 58.3 x 40.8 x 18.6mm EMI Suppression - - - - - - - - - - -
RS Stock No. 136-8980
BrandRS PRO
$8.709
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. 136-8983
BrandRS PRO
$11.158
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. 136-9021
BrandRS PRO
$20.02
Each
units
Ferrite Ring 50 x 30 x 21.1mm EMI Suppression - - - - - - - - - - -
RS Stock No. 136-8985
BrandRS PRO
$40.244
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. 136-9023
BrandRS PRO
$70.80
Each
units
Ferrite Ring 102 x 65.8 x 16.1mm EMI Suppression - - - - - - - - - - -
RS Stock No. 212-0803
Mfr. Part No.B64290L0040X830
BrandEPCOS
$18.45
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
$9.48
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. 212-0875
Mfr. Part No.B64290L0048X830
BrandEPCOS
$5.37
Each
units
Toroid Core 35.5 (Dia.) x 13.6mm General Electronics - N30 35.5mm 13.6mm 19.2mm 35.5mm - - - - -
RS Stock No. 814-3385
Mfr. Part No.433003080301
BrandFERROXCUBE
$39.75
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. 171-0802
Mfr. Part No.TX63/38/25-3E12
BrandFERROXCUBE
$22.088
Each (On a Reel of 24)
units
Ring Core 63.4 x 37.7 x 25.3mm Interference Suppression Coil, Pulse and Wide Band Transformers - 3E12 Material 63.4mm 25.3mm 37.7mm 63.4mm - - - - -
RS Stock No. 814-3388
Mfr. Part No.TX63/38/25-3E12
BrandFERROXCUBE
$24.57
Each
units
Ring Core 63.4 x 37.7 x 25.3mm Interference Suppression Coil, Pulse and Wide Band Transformers - 3E12 Material 63.4mm 25.3mm 37.7mm 63.4mm - - - - -
RS Stock No. 167-8277
Mfr. Part No.B64290L0048X830
BrandEPCOS
$2.27
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. 174-1364
Mfr. Part No.TN14/9/5-3E25
BrandFERROXCUBE
$1.48
Each (In a Pack of 10)
units
Toroid Core 14.6 x 8.2 x 5.5mm Choke, Current Regulation, Energy Storage, Transformer - Ferrite - 5.5mm 8.2mm 14.6mm - - - - -
RS Stock No. 163-3136
Mfr. Part No.7427015
$5.11
Each (In a Bag of 30)
units
Toroid Core 40.6 27.4 (Dia.) x 15mm General Electronics - 4W620 40.6mm 15mm 27.4mm 40.6mm - - - - -
RS Stock No. 260-6739
Mfr. Part No.7427015
$6.36
Each
units
Toroid Core 40.6 27.4 (Dia.) x 15mm General Electronics - 4W620 40.6mm 15mm 27.4mm 40.6mm - - - - -
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