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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Omschrijving Prijs Type Dimensions Application Impedance Material Diameter Height Inner Diameter Outer Diameter Outer Dimensions Outer Height Series Aperture Diameter Number of Apertures
RS-stocknr. 371-7379
FabrikantnummerHF70T18X10X10
FabrikantTDK
€ 16,79
1 Pack of 10
Pack(s)
EMI Suppression Toroid Core 18 x 10 x 10mm Round Cable - HF70 18mm 10mm 10mm 18mm - - - - -
RS-stocknr. 878-1029
FabrikantnummerHF70RH12.3X20X7
FabrikantTDK
€ 0,425
Each (In a Box of 100)
Aantal stuks
EMI Suppression 12.3 x 7 x 20mm Audio Equipment, Automotive, EMI Absorption, Imaging Devices, Office Automation Equipment, Penetrating Noise Absorption, Prevent Parasitic Oscillation, Telecom - Nickel Zinc 12.3mm 20mm 7mm 12.3mm - - - - -
RS-stocknr. 371-7240
FabrikantnummerHF70RH26X29X13
FabrikantTDK
€ 4,569
Each (In a Pack of 10)
Aantal stuks
Cylindrical Core 26 x 13 x 29mm EMI Suppression - HF70 26mm 29mm 13mm 26mm - - - - -