Flat Cable Ferrite Cores

Flat cable ferrites are made from the ceramic material ferrite and are used to eliminate noise on flat cables, such as flat ribbon cables. Ferrite cores help to prevent electromagnetic and radio frequency interference, which can otherwise cause problems for low-level signals.

How do flat cable ferrites work?

Flat cable ferrites are easy to attach to cables. You can simply thread the device over your cable and then apply the plug connectors that are usually provided. The ferrite core is held in position with heat-shrink sleeving, a metal clamp or adhesive tape, or you can glue it in place instead.

Flat cable ferrites are most commonly used in the cores of radio frequency transformers in applications such as switched-mode power supplies and ferrite antennas for AM radio receivers.

Features and benefits of flat cable ferrites

  • High magnetic permeability, which means they can support the formation of an internal magnetic field.
  • Low electrical conductivity, which helps to prevent eddy currents (loops of current induced within conductors by a changing magnetic field).

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Description Price Maximum Number of Wires Type Application Material Outer Dimensions Inner Dimensions Openable Inner Height Inner Width Outer Depth Outer Height Outer Width
RS Stock No. 257-4339
Mfr. Part No.RFS2-20-12-A5
BrandRichco
MYR10.75
Each
units
20 Flat Cable Core EMI Suppression A5 12 x 31 x 5mm - - 1mm 27mm 12mm 5mm 31mm
RS Stock No. 257-4323
Mfr. Part No.RFS1-15-12-A5
BrandRichco
MYR10.75
Each
units
15 Flat Cable Core EMI Suppression A5 12 x 23.3 x 3mm - - 0.9mm 20mm 12mm 3mm 23.3mm
RS Stock No. 257-4288
Mfr. Part No.RFP-1-26-28-A5
BrandRichco
MYR52.17
Each
units
26 Split Core EMI Suppression A5 28.5 x 45 x 6.35mm - Yes 0.8mm 34.4mm 28.5mm 6.35mm 45mm
RS Stock No. 261-8833
Mfr. Part No.SSC 40 12
BrandRichco
MYR25.79
Each
units
26 Fixed RFI Suppression Ferrite 40 x 12 x 6.5mm 34.8 x 1.3mm - 1.3mm 34.8mm 12mm 6.5mm 40mm
RS Stock No. 257-4272
Mfr. Part No.RFP-1-20-25-A5
BrandRichco
MYR40.11
Each
units
20 Split Core EMI Emission Attenuation A5 38 x 6.35mm 26.6 x 0.8mm Yes 0.8mm 26.6mm - 6.35mm 38mm