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. 109-4164
Mfr. Part No.ZCAT1730-0730A
BrandTDK
MYR3.64
Each (On a Reel of 840)
units
ZCAT Ferrite Core USB 30 Material - - Yes - 23 Dia. x 30mm 7mm - 1 16.5mm 17.4mm
RS Stock No. 774-0639
Mfr. Part No.ZCAT1730-0730A
BrandTDK
MYR8.26
Each
units
ZCAT Ferrite Core USB 30 Material - - Yes - 23 Dia. x 30mm 7mm - 1 16.5mm 17.4mm
RS Stock No. 741-3068
Mfr. Part No.ZCAT3035-1330
BrandTDK
MYR22.95
Each
units
ZCAT Bead EMC Absorption 30 Material - - - - 34 Dia. x 39mm 13mm - 1 30mm -
RS Stock No. 482-6610
Mfr. Part No.2861001502
BrandFair-Rite
MYR1.448
Each (In a Pack of 5)
units
- Multi Aperture Core Suppression Components - - - - - - 3.8mm - 2 - -
RS Stock No. 109-4160
Mfr. Part No.ZCAT3035-1330
BrandTDK
MYR11.45
Each (On a Reel of 200)
units
ZCAT Bead EMC Absorption 30 Material - - - - 34 Dia. x 39mm 13mm - 1 30mm -
RS Stock No. 466-9142
Mfr. Part No.0431173951
BrandFair-Rite
MYR5.96
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. 172-9997
Mfr. Part No.0443164251
BrandFair-Rite
MYR13.302
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
MYR7.61
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. 309-7940
Mfr. Part No.74271131
MYR19.95
Each
units
STAR-TEC STAR-TEC General Application 4 W 620 - No Yes 246Ω 24.2 x 36.4 x 20.1mm 9mm - - 24.6mm 20.1mm
RS Stock No. 774-0632
Mfr. Part No.ZCAT1325-0530A
BrandTDK
MYR5.09
Each
units
ZCAT Ferrite Core Suppression Components 30 Material - - - - 20 Dia. x 25mm 5mm - 1 12.8mm 11.2mm
RS Stock No. 109-4162
Mfr. Part No.ZCAT1325-0530A
BrandTDK
MYR2.305
Each (On a Reel of 1344)
units
ZCAT Ferrite Core Suppression Components 30 Material - - - - 20 Dia. x 25mm 5mm - 1 12.8mm 11.2mm
RS Stock No. 466-9158
Mfr. Part No.0431176451
BrandFair-Rite
MYR39.69
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
MYR81.979
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. 170-3327
Mfr. Part No.ZCAT1730-0730A-BK
BrandTDK
MYR3.87
Each (In a Box of 840)
units
ZCAT Clamp Filter Audio Equipment, Copiers, Digital Telephones, Electronic Musical Instruments, Facsimiles, HDDs, Monitors, PCs, Video Games, Word Processors - - - Yes 40Ω 16.5 Dia. x 30mm 7mm - 1 - 30mm
RS Stock No. 916-4318
Mfr. Part No.ZCAT1730-0730A-BK
BrandTDK
MYR8.14
Each (In a Pack of 5)
units
ZCAT Clamp Filter Audio Equipment, Copiers, Digital Telephones, Electronic Musical Instruments, Facsimiles, HDDs, Monitors, PCs, Video Games, Word Processors - - - Yes 40Ω 16.5 Dia. x 30mm 7mm - 1 - 30mm
RS Stock No. 173-0018
Mfr. Part No.0431177081
BrandFair-Rite
MYR145.67
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. 466-9164
Mfr. Part No.0431177081
BrandFair-Rite
MYR97.45
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. 177-6021
Mfr. Part No.74275812
MYR17.30
Each (In a Box of 56)
units
STAR-BUENO Snap Ferrite EMI Suppression 4W620 - No Yes 200Ω 19 x 19 x 30.3mm 2.5 → 5mm - 1 30.3mm 19mm
RS Stock No. 170-3330
Mfr. Part No.ZCAT2235-1030A-BK
BrandTDK
MYR6.14
Each (In a Box of 400)
units
ZCAT Clamp Filter Audio Equipment, Copiers, Digital Telephones, Electronic Musical Instruments, Facsimiles, HDDs, Monitors, PCs, Video Games, Word Processors - - - Yes 50Ω 21.5 Dia. x 35mm 10mm - 1 - 35mm
RS Stock No. 173-0002
Mfr. Part No.0443167251
BrandFair-Rite
MYR17.893
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