Flat Cable Ferrite Cores

Flat cable ferrite cores 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. 


Applications for flat cable ferrite cores

Flat cable ferrite cores 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 ferrite cores 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 ferrite cores 

  • 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. 257-4288
Mfr. Part No.RFP-1-26-28-A5
BrandRichco
TWD272
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. 261-8861
Mfr. Part No.FPC 16 12
BrandRichco
TWD140
Each
units
10 Fixed RFI Suppression Ferrite 16 x 12 x 5mm 11.5 x 0.5mm - 0.5mm 11.5mm 12mm 5mm 16mm
RS Stock No. 124-1523
Mfr. Part No.7427221
TWD38
Each (In a Pack of 10)
units
10 - Digital Device, Flat Cable 3 W 800 18 x 8 x 5mm 14 x 1mm - 1mm 14mm 8mm 5mm 18mm
New
RS Stock No. 173-0005
Mfr. Part No.2643163851
BrandFair-Rite
TWD173
Each (In a Box of 216)
units
20 EMI Suppression - - 38.1mm 26.65 x 1.9mm - 1.9mm 26.65mm - 12.05mm 38.1mm
RS Stock No. 124-1525
Mfr. Part No.7427212
TWD133
Each (In a Pack of 5)
units
21 - Digital Device, Flat Cable 4 W 620 33.5 x 12 x 6.5mm 28 x 1.3mm - 1.3mm 28mm 12mm 6.5mm 33.5mm
RS Stock No. 260-6616
Mfr. Part No.74272592
TWD220
Each
units
40 Split Flat Core RFI Suppression 4W620 13 x 63 x 15mm - Yes 2mm 52mm 13mm 15mm 63mm
RS Stock No. 163-3142
Mfr. Part No.74272592
TWD281
Each (In a Tray of 40)
units
40 Split Flat Core RFI Suppression 4W620 13 x 63 x 15mm - Yes 2mm 52mm 13mm 15mm 63mm
RS Stock No. 124-1524
Mfr. Part No.7427224
TWD62
Each (In a Pack of 5)
units
16 Flat Cable Core General Electronics 4 W 620 28 x 14.6 x 7.7mm 23 x 1.5mm No 1.5mm 23mm 14.6mm 7.7mm 28mm
RS Stock No. 466-9984
Mfr. Part No.2643163851
BrandFair-Rite
TWD111
Each
units
20 EMI Suppression - - 38.1mm 26.65 x 1.9mm - 1.9mm 26.65mm - 12.05mm 38.1mm
RS Stock No. 260-6644
Mfr. Part No.7427212
TWD99
Each
units
21 Flat Cable Core General Electronics 4 W 620 33.5 x 6.5mm 28 x 1.3mm No 1.3mm 28mm - 6.5mm 33.5mm
RS Stock No. 261-8805
Mfr. Part No.RFS2-21-8-A5
BrandRichco
TWD104
Each
units
21 Fixed RFI Suppression Ferrite 33.5 x 8 x 6.5mm 27 x 1.3mm - 1.3mm 27mm 8mm 6.5mm 33.5mm
RS Stock No. 261-8811
Mfr. Part No.RSSC 33.5-12
BrandRichco
TWD113
Each
units
21 Fixed RFI Suppression Ferrite 33.5 x 12 x 6.5mm 27 x 1.3mm - 1.3mm 27mm 12mm 6.5mm 33.5mm
RS Stock No. 811-8941
Mfr. Part No.ESD-FPL-7
BrandKEMET
TWD25
Each (In a Bag of 5)
units
- Solid Core Consumer Electronics Ferrite 28 x 7 x 7.7mm 23.5 x 1.5mm - 1.5mm 23.5mm 7mm 7.7mm 28mm
RS Stock No. 261-8827
Mfr. Part No.SSC 40 10
BrandRichco
TWD123
Each
units
26 Fixed RFI Suppression Ferrite 40 x 10 x 6.5mm 34.8 x 1.3mm - 1.3mm 34.8mm 10mm 6.5mm 40mm
RS Stock No. 811-9082
Mfr. Part No.ESD-R-38D-B
BrandKEMET
TWD344
Each
units
- Toroid Core Consumer Electronics Nickel Zinc 42.4 Dia. x 16mm 25.5 (Dia.)mm - - - - 16mm 42.4 (Dia.)mm
RS Stock No. 371-7335
Mfr. Part No.HF70SH35X1.3X12
BrandTDK
TWD104
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. 260-6672
Mfr. Part No.7427216
TWD104
Each
units
40 - General Electronics 4 W 620 57.9 x 7mm 52 x 1.5mm - 1.5mm 52mm - 7mm 57.9mm
RS Stock No. 811-8897
Mfr. Part No.ESD-FPD-16
BrandKEMET
TWD123
Each
units
16 Split Core Consumer Electronics Ferrite 37 x 12.7 x 10mm 25.4 x 2.6mm - 2.6mm 25.4mm 12.7mm 10mm 37mm
New
RS Stock No. 169-6765
Mfr. Part No.ESD-FPD-50-1
BrandKEMET
TWD339
Each (In a Box of 240)
units
50 Split Core Consumer Electronics Ferrite 80 x 12.7 x 10mm 68.6 x 2mm - 2mm 68.6mm 12.7mm 10mm 80mm
New
RS Stock No. 169-6768
Mfr. Part No.ESD-FPL-7
BrandKEMET
TWD27
Each (In a Box of 900)
units
- Solid Core Consumer Electronics Ferrite 28 x 7 x 7.7mm 23.5 x 1.5mm - 1.5mm 23.5mm 7mm 7.7mm 28mm