Ferrite Sleeves

Ferrite sleeves, also known as ferrite beads, are non-conductive components used in electrical circuits to suppress or filter high frequency electromagnetic interference noise. They prevent electromagnetic interference to and from a device. 


How do ferrite sleeves work?

If a device produces radio frequency energy, the conductive cable is used as an antenna to transmit the energy through the device. The ferrite sleeve or bead reduces the output of EMI from the device itself and prevents the cable from acting as an antenna for other sources of EMI, like household appliances. 


Uses for ferrite sleeves


Ferrite sleeves are commonly found on data cables and medical equipment. They may be built in to the equipment or be separate items that can be clamped on to a cable. You may see larger ones on external cables, like on computer monitor cables, while smaller ones can be used internally in electrical circuits, on printed circiut boards (PCBs) for example. Ferrite sleeves are often needed for regulatory compliance. 


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Description Price Series Type Application Material Impedance at 25 MHz Key Openable Impedance at 100 MHz Outer Dimensions Aperture Diameter Impedance at 500 MHz Number of Apertures Outer Depth Outer Height
RS Stock No. 466-9164
Mfr. Part No.0431177081
BrandFair-Rite
£14.03
Each
Units
- Round Cable Snap-Its EMI Suppression 31 Material - - Yes 375 56.4 x 27.45 x 42.95mm 25.65mm - 1 27.45mm 42.95mm
RS Stock No. 173-0018
Mfr. Part No.0431177081
BrandFair-Rite
£12.415
Each (In a Box of 36)
Units
- Round Cable Snap-Its EMI Suppression 31 Material - - Yes 375 56.4 x 27.45 x 42.95mm 25.65mm - 1 27.45mm 42.95mm
RS Stock No. 466-9085
Mfr. Part No.0431164181
BrandFair-Rite
£3.22
Each
Units
- Round Cable Snap-Its EMI Suppression 31 Material - - Yes 260 31 x 15.25 x 39.4mm 13.05mm - 1 15.25mm 39.4mm
RS Stock No. 173-0010
Mfr. Part No.0431164181
BrandFair-Rite
£2.968
Each (In a Box of 110)
Units
- Round Cable Snap-Its EMI Suppression 31 Material - - Yes 260 31 x 15.25 x 39.4mm 13.05mm - 1 15.25mm 39.4mm
RS Stock No. 466-9142
Mfr. Part No.0431173951
BrandFair-Rite
£1.09
Each
Units
- Round Cable Snap-Its EMI Suppression 31 Material - - Yes 180 12.8 x 5.6 x 25mm 5.1mm - 1 5.6mm 25mm
RS Stock No. 466-9120
Mfr. Part No.0431167281
BrandFair-Rite
£1.93
Each
Units
- Round Cable Snap-Its EMI Suppression 31 Material - - Yes 240 23.7 x 11.7 x 39.4mm 10.15mm - 1 11.7mm 39.4mm
RS Stock No. 172-9998
Mfr. Part No.0431167281
BrandFair-Rite
£1.402
Each (In a Box of 196)
Units
- Round Cable Snap-Its EMI Suppression 31 Material - - Yes 240 23.7 x 11.7 x 39.4mm 10.15mm - 1 11.7mm 39.4mm
RS Stock No. 466-9091
Mfr. Part No.0431164281
BrandFair-Rite
£1.68
Each
Units
- Round Cable Snap-Its EMI Suppression 31 Material - - Yes 310 20 x 9.8 x 39.4mm 6.6mm - 1 9.8mm 39.4mm
RS Stock No. 172-9999
Mfr. Part No.0431164281
BrandFair-Rite
£1.47
Each (In a Box of 196)
Units
- Round Cable Snap-Its EMI Suppression 31 Material - - Yes 310 20 x 9.8 x 39.4mm 6.6mm - 1 9.8mm 39.4mm
RS Stock No. 466-9158
Mfr. Part No.0431176451
BrandFair-Rite
£7.91
Each
Units
- Round Cable Snap-Its EMI Suppression 31 Material - - Yes 380 38.6 x 19.15 x 47.5mm 18.35mm - 1 19.15mm 47.5mm
RS Stock No. 173-0017
Mfr. Part No.0431176451
BrandFair-Rite
£7.336
Each (In a Box of 60)
Units
- Round Cable Snap-Its EMI Suppression 31 Material - - Yes 380 38.6 x 19.15 x 47.5mm 18.35mm - 1 19.15mm 47.5mm
RS Stock No. 173-0012
Mfr. Part No.0431173551
BrandFair-Rite
£3.324
Each (In a Box of 110)
Units
- Round Cable Snap-Its EMI Suppression 31 Material - - Yes 220 29.2 x 14.7 x 42mm 18.8mm - 1 14.7mm 42mm
RS Stock No. 466-9136
Mfr. Part No.0431173551
BrandFair-Rite
£3.60
Each
Units
- Round Cable Snap-Its EMI Suppression 31 Material - - Yes 220 29.2 x 14.7 x 42mm 18.8mm - 1 14.7mm 42mm
RS Stock No. 172-9997
Mfr. Part No.0443164251
BrandFair-Rite
£1.275
Each (In a Box of 196)
Units
- Round Cable Snap-Its EMI Suppression 43 Material, 44 Material - - Yes 275 17.9 x 9.2 x 32.2mm 6.6mm - 1 9.2mm 32.2mm
RS Stock No. 219-2640
Mfr. Part No.0443164251
BrandFair-Rite
£1.52
Each
Units
- Round Cable Snap-Its EMI Suppression 43 Material, 44 Material - - Yes 275 17.9 x 9.2 x 32.2mm 6.6mm - 1 9.2mm 32.2mm
RS Stock No. 219-2656
Mfr. Part No.0443167251
BrandFair-Rite
£1.86
Each
Units
- Round Cable Snap-Its EMI Suppression 43 Material, 44 Material - - Yes 225 22.1 x 11 x 32.3mm 10.15mm - 1 11mm 32.2mm
RS Stock No. 173-0002
Mfr. Part No.0443167251
BrandFair-Rite
£1.718
Each (In a Box of 196)
Units
- Round Cable Snap-Its EMI Suppression 43 Material, 44 Material - - Yes 225 22.1 x 11 x 32.3mm 10.15mm - 1 11mm 32.2mm
RS Stock No. 466-9265
Mfr. Part No.0461167281
BrandFair-Rite
£2.12
Each
Units
- Round Cable Snap-Its EMI Suppression 61 Material - - Yes - 23.7 x 11.7 x 39.4mm 10.15mm - 1 11.7mm 39.4mm
RS Stock No. 173-0006
Mfr. Part No.0461167281
BrandFair-Rite
£1.975
Each (In a Box of 196)
Units
- Round Cable Snap-Its EMI Suppression 61 Material - - Yes - 23.7 x 11.7 x 39.4mm 10.15mm - 1 11.7mm 39.4mm
RS Stock No. 173-0014
Mfr. Part No.0461164181
BrandFair-Rite
£4.04
Each (In a Box of 110)
Units
- EMI Suppression - - - - Yes 205Ω 39.4 x 31 x 30.5mm 13mm 475Ω 1 39.4mm 30.5mm