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
MYR92.13
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. 219-2656
Mfr. Part No.0443167251
BrandFair-Rite
MYR12.16
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. 170-3330
Mfr. Part No.ZCAT2235-1030A-BK
BrandTDK
MYR6.657
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. 111-0865
Mfr. Part No.ZCAT2235-1030A
BrandTDK
MYR6.71
Each (On a Reel of 400)
units
ZCAT Bead EMC Absorption 30 Material - - - - 28 Dia. 35mm 10mm - 1 10mm 20mm
RS Stock No. 170-3331
Mfr. Part No.ZCAT2035-0930A-BK
BrandTDK
MYR5.471
Each (In a Box of 480)
units
ZCAT Clamp Filter Audio Equipment, Copiers, Digital Telephones, Electronic Musical Instruments, Facsimiles, HDDs, Monitors, PCs, Video Games, Word Processors - - - Yes 50Ω 19.5 Dia. x 35mm 9mm - 1 - 35mm
RS Stock No. 916-4327
Mfr. Part No.ZCAT2035-0930A-BK
BrandTDK
MYR10.732
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 50Ω 19.5 Dia. x 35mm 9mm - 1 - 35mm
RS Stock No. 741-3056
Mfr. Part No.ZCAT2235-1030A
BrandTDK
MYR13.00
Each
units
ZCAT Bead EMC Absorption 30 Material - - - - 28 Dia. 35mm 10mm - 1 10mm 20mm
RS Stock No. 367-5310
Mfr. Part No.74271222
MYR25.31
Each
units
STAR-TEC STAR-TEC EMI Suppression 4 W 620 - No Yes 265 42.2 x 28.8 x 33.5mm 13mm - 1 28.8mm 33.5mm
RS Stock No. 169-6794
Mfr. Part No.ESD-SR-160
BrandKEMET
MYR8.738
Each (In a Box of 400)
units
ESD-SR Snap-on Cores Snap Ferrite Consumer Electronics Ferrite - - Yes - 20.2 x 39 x 20mm 9mm - 1 39mm 20mm
RS Stock No. 811-9124
Mfr. Part No.ESD-SR-160
BrandKEMET
MYR13.92
Each
units
ESD-SR Snap-on Cores Snap Ferrite Consumer Electronics Ferrite - - Yes - 20.2 x 39 x 20mm 9mm - 1 39mm 20mm
RS Stock No. 367-5297
Mfr. Part No.74271112
MYR19.79
Each
units
STAR-TEC STAR-TEC EMI Suppression 4 W 620 - No Yes 321Ω 23.7 x 36.9 x 18.2mm 6.6mm - 1 36.9mm 18.2mm
RS Stock No. 173-0010
Mfr. Part No.0431164181
BrandFair-Rite
MYR30.959
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. 173-0000
Mfr. Part No.0444167281
BrandFair-Rite
MYR10.748
Each (In a Box of 196)
units
- Round Cable Snap-Its EMI Suppression 43 Material, 44 Material - - Yes 210 23.7 x 11.7 x 39.4mm 10.15mm - 1 11.7mm 39.4mm
RS Stock No. 123-2491
BrandRS PRO
MYR11.145
Each (In a Pack of 2)
units
- Clamp Filter Computer Peripherals, Digital TV, Internal & External Power Cables, Monitors, Printers Ferrite 105 - Yes 190Ω 22.5 Dia. x 43mm 9.5mm - 1 43mm -
RS Stock No. 466-9221
Mfr. Part No.0444167281
BrandFair-Rite
MYR12.00
Each
units
- Round Cable Snap-Its EMI Suppression 43 Material, 44 Material - - Yes 210 23.7 x 11.7 x 39.4mm 10.15mm - 1 11.7mm 39.4mm
RS Stock No. 916-4336
Mfr. Part No.ZCAT3035-1330-BK
BrandTDK
MYR24.125
Each (In a Pack of 2)
units
ZCAT Clamp Filter Audio Equipment, Copiers, Digital Telephones, Electronic Musical Instruments, Facsimiles, HDDs, Monitors, PCs, Video Games, Word Processors - - - Yes 80Ω 30 Dia. x 39mm 13mm - 1 - 39mm
RS Stock No. 123-2489
BrandRS PRO
MYR9.575
Each (In a Pack of 2)
units
- Clamp Filter Computer Peripherals, Digital TV, Internal & External Power Cables, Monitors, Printers Ferrite 80 - Yes 120Ω 19.5 Dia. x 35.5mm 9mm - 1 35.5mm -
RS Stock No. 170-3326
Mfr. Part No.ZCAT1518-0730-BK
BrandTDK
MYR2.858
Each (In a Box of 896)
units
ZCAT Clamp Filter Audio Equipment, Copiers, Digital Telephones, Electronic Musical Instruments, Facsimiles, HDDs, Monitors, PCs, Video Games, Word Processors - 25 - Yes 50Ω 15 Dia. x 22mm 7mm - 1 - 22mm
RS Stock No. 916-4320
Mfr. Part No.ZCAT2132-1130-BK
BrandTDK
MYR12.264
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 20.5 Dia. x 36mm 11mm - 1 - 36mm
RS Stock No. 109-4165
Mfr. Part No.ZCAT2035-0930A
BrandTDK
MYR5.166
Each (On a Reel of 480)
units
ZCAT Ferrite Core Suppression Components 30 Material - - - - 19.5 Dia. x 35mm 9mm - 1 20.5mm -