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. 371-7335
Mfr. Part No.HF70SH35X1.3X12
BrandTDK
SGD1.327
Each (In a Pack of 10)
units
- Fixed EMI Suppression Ferrite 40 x 12 x 6.5mm 35 x 1.3mm - 1.3mm 35mm 12mm 6.5mm 40mm
RS Stock No. 741-3071
Mfr. Part No.ZCAT4625-3430D
BrandTDK
SGD6.38
Each
units
26 Clamp Filter Flat Cable 30 Material 45.5 x 24.5 x 12mm 34mm Yes - - 24.5mm 12mm 45.5mm
RS Stock No. 109-4169
Mfr. Part No.ZCAT4625-3430D
BrandTDK
SGD3.75
Each (In a Box of 240)
units
26 Clamp Filter Flat Cable 30 Material 45.5 x 24.5 x 12mm 34mm Yes - - 24.5mm 12mm 45.5mm
RS Stock No. 371-7313
Mfr. Part No.HF70SH35X0.8X12
BrandTDK
SGD1.286
Each (In a Pack of 10)
units
- Fixed EMI Suppression Ferrite 39 x 12 x 4mm 35 x 0.8mm - 0.8mm 35mm 12mm 4mm 39mm