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. 261-8906
Mfr. Part No.TR 13 7 6
BrandRichco
HK$17.36
Each
units
Toroid Core 13 x 7 x 6.3mm - - Ferrite - 6.3mm 7mm 13mm - - - - -
RS Stock No. 257-4446
Mfr. Part No.RT220-135-064
BrandRichco
HK$8.506
Each (In a Pack of 5)
units
Toroid Core 22 x 13.5 x 6.4mm Filtering - Ferrite - 6.4mm 13.5mm 22mm - - - - -
RS Stock No. 257-4452
Mfr. Part No.RT250-150-120 K5B
BrandRichco
HK$20.024
Each (In a Pack of 5)
units
Toroid Core 25 (Dia.) x 12mm Multi-Turn Suppression Core - K5B 25mm 12mm 15mm 25mm - - - - -
RS Stock No. 257-4519
Mfr. Part No.RRH158-079-160-K5B
BrandRichco
HK$20.866
Each (In a Pack of 5)
units
Ferrite Core 15.8 x 7.9 x 16mm CATV, MATV, Wire Assembly - K5B 15.8mm - 7.9mm 15.8mm - - - - -
RS Stock No. 261-8776
Mfr. Part No.MTCN 28 16 20
BrandRichco
HK$103.68
Each
units
Split Core 28.5 x 16.3 x 20mm EMI Suppression - Ferrite (Core), Nylon (Clamp) - 20mm 16.3mm 28.5mm - - - - -
RS Stock No. 257-4525
Mfr. Part No.RRH160-090-280-K5B
BrandRichco
HK$12.506
Each (In a Pack of 5)
units
Ferrite Core 16 x 9 x 18mm CATV, MATV, Wire Assembly - K5B 16mm 18mm 9mm 16mm - - - - -
RS Stock No. 261-8984
Mfr. Part No.RI 14 6 28
BrandRichco
HK$22.53
Each
units
Ferrite Core 14.3 (Dia.) x 28.6mm VE/CD - Ferrite 14.3mm 28.6mm 6.4mm 14.3mm - - - - -
RS Stock No. 257-4395
Mfr. Part No.RT145-102-080-K5B
BrandRichco
HK$6.874
Each (In a Pack of 5)
units
Toroid Core 14.5 (Dia.) x 8mm Multi-Turn Suppression Core - K5B 14.5mm 8mm - 14.5mm - - - - -
RS Stock No. 261-9000
Mfr. Part No.RI 18 10 28
BrandRichco
HK$38.28
Each
units
Ferrite Core 17.5 (Dia.) x 28.5mm VE/CD - Ferrite 17.5mm 28.5mm 10mm 17.5mm - - - - -
RS Stock No. 261-8748
Mfr. Part No.MTCN 20 10 10
BrandRichco
HK$66.00
Each
units
Split Core 20 x 10 x 10mm EMI Suppression - Ferrite (Core), Nylon (Clamp) 20mm 10mm 10mm 20mm - - - - -
RS Stock No. 257-4547
Mfr. Part No.RRH180-100-290-K5B
BrandRichco
HK$12.506
Each (In a Pack of 5)
units
Ferrite Core 18 x 10 x 29mm CATV, MATV, Wire Assembly - K5B 18mm 29mm 10mm 18mm - - - - -
RS Stock No. 257-4474
Mfr. Part No.RRH095-050-145-K5B
BrandRichco
HK$7.978
Each (In a Pack of 5)
units
Ferrite Core 9.5 x 5 x 14.5mm Filtering - Ferrite - 14.5mm 5mm 9.5mm - - - - -
RS Stock No. 257-4503
Mfr. Part No.RRH157-070-286-K5B
BrandRichco
HK$13.344
Each (In a Pack of 5)
units
Ferrite Core 15.65 x 6.99 x 28.57mm CATV, MATV, Wire Assembly - K5B 15.65mm - 6.99mm 15.65mm - - - - -
RS Stock No. 261-8928
Mfr. Part No.TR 16 8 16
BrandRichco
HK$22.99
Each
units
Toroid Core 16.3 x 8.15 x 16mm - - Ferrite - 16mm 8.15mm 16.3mm - - - - -
RS Stock No. 257-4430
Mfr. Part No.RT205-102-100-K5B
BrandRichco
HK$20.116
Each (In a Pack of 5)
units
Toroid Core 20.5 (Dia.) x 10mm Multi-Turn Suppression Core - K5B 20.5mm 10mm 10.2mm 20.5mm - - - - -
RS Stock No. 257-4569
Mfr. Part No.RRH040-020-050-K5B
BrandRichco
HK$0.937
Each (In a Pack of 20)
units
Ferrite Core 4 x 2 x 5mm CATV, MATV, Wire Assembly - K5B 4mm 5mm 2mm 4mm - - - - -
RS Stock No. 265-1802
Mfr. Part No.RI 26 13 28
BrandRichco
HK$69.66
Each
units
Ferrite Core 26 (Dia.) x 28.5mm VE/CD - Ferrite 26mm 28.5mm 13mm 26mm - - - - -
RS Stock No. 257-4418
Mfr. Part No.RT165-082-160-K5B
BrandRichco
HK$11.978
Each (In a Pack of 5)
units
Toroid Core 16.5 x 8 x 16mm Multi-Turn Suppression Core - K5B 16.5mm 16mm 8.2mm 16.5mm - - - - -
RS Stock No. 261-8940
Mfr. Part No.TR 25 15 12
BrandRichco
HK$35.75
Each
units
Toroid Core 25.2 x 15.1 x 12mm - - Ferrite - 12mm 15.1mm 25.2mm - - - - -
RS Stock No. 257-4468
Mfr. Part No.RT310-190-080-A5
BrandRichco
HK$18.598
Each (In a Pack of 5)
units
Toroid Core 31 (Dia.) x 8mm Multi-Turn Suppression Core - A5 31mm 8mm - 31mm - - - - -