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. 811-9133
Mfr. Part No.ESD-SR-S10
BrandKEMET
HK$16.18
Each
units
ESD-SR Snap-on Cores Snap Ferrite Consumer Electronics Ferrite - - Yes - 15.5 x 18.5 x 14mm 6mm - 1 18.5mm 14mm
RS Stock No. 466-9192
Mfr. Part No.0444164181
BrandFair-Rite
HK$39.34
Each
units
- Round Cable Snap-Its EMI Suppression 43 Material, 44 Material - - Yes - 31 x 15.25 x 39.4mm 13.05mm - 1 15.25mm 39.4mm
RS Stock No. 260-6543
Mfr. Part No.7427141
HK$36.75
Each
units
- Ring Core General Application 4 W 620 - - Yes 97 15.5 x 30 x 36mm 15mm - 1 15.5mm 30mm
RS Stock No. 116-1487
Mfr. Part No.11.05.1010
BrandRotronic
HK$44.25
Each
units
EMV Conduit Core EMI Suppression Ferrite - - Yes 100 24.5 x 32 x 23.5mm 10mm - 1 32mm 23.5mm
RS Stock No. 309-7962
Mfr. Part No.74271221
HK$49.46
Each
units
STAR-TEC STAR-TEC General Application 4 W 620 - No Yes 270Ω 33.6 x 29.5 x 37.7mm 13mm - - 33.6mm 29.5mm
RS Stock No. 222-4343
Mfr. Part No.MSFC5-T
BrandRichco
HK$57.93
Each
units
MSFC Cable Core EMI Suppression A5 - - Yes 229 16.6 x 18mm 6mm - 1 - 18mm
RS Stock No. 111-0865
Mfr. Part No.ZCAT2235-1030A
BrandTDK
HK$11.381
Each (On a Reel of 400)
units
ZCAT Bead EMC Absorption 30 Material - - - - 28 Dia. 35mm 10mm - 1 10mm 20mm
RS Stock No. 167-8217
Mfr. Part No.B62152A0007X001
BrandEPCOS
HK$3.924
Each (In a Box of 2000)
units
B62152 Double Aperture Core Broadband Transformers - - - - - 7.25 x 4.2 x 6.2mm 1.7mm - 2 4.2mm 6.2mm
RS Stock No. 136-8976
BrandRS PRO
HK$44.616
Each (In a Tray of 120)
units
- Ferrite Sleeve EMI Suppression Manganese-Zinc 128 - - 268Ω - 13mm - - - 28.5mm
RS Stock No. 170-3331
Mfr. Part No.ZCAT2035-0930A-BK
BrandTDK
HK$10.65
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. 172-9997
Mfr. Part No.0443164251
BrandFair-Rite
HK$23.445
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. 151-2785
Mfr. Part No.475178281
BrandFair-Rite
HK$54.14
Each
units
04 Round Cable Snap-Its EMI Suppression 75 Material - - Yes - 39.4 x 21 x 21mm 9mm - 1 21mm 21mm
RS Stock No. 814-9992
Mfr. Part No.74271142S
HK$39.30
Each
units
STAR-TEC Snap Ferrite General Application, Safety Relevant Application 4W620 - No Yes 182 32.5 x 18.8 x 13.2mm 5mm - 1 18.8mm 13.2mm
RS Stock No. 212-0588
Mfr. Part No.B62152A0001X001
BrandEPCOS
HK$17.642
Each (In a Pack of 5)
units
B62152 Double Aperture Core Broadband Transformers - - - - - 14.5 x 8.5 x 14.5mm 3.4mm - 2 8.5mm 14.5mm
RS Stock No. 736-1923
Mfr. Part No.74272722
HK$98.32
Each
units
STAR-FIX Snap Ferrite EMI Suppression 8W5000 - No Yes - 28 x 31 x 35.1mm 12.5mm - 1 35.1mm 28mm
RS Stock No. 123-2482
BrandRS PRO
HK$9.77
Each (In a Pack of 2)
units
- Clamp Filter Computer Peripherals, Digital TV, Internal & External Power Cables, Monitors, Printers Ferrite 60 - Yes 100Ω 13 x 25.5 x 11.8mm 5.2mm - 1 25.5mm 11.8mm
RS Stock No. 466-9108
Mfr. Part No.0431164951
BrandFair-Rite
HK$15.16
Each
units
- Round Cable Snap-Its EMI Suppression 31 Material - - Yes 280 17.3 x 8.4 x 36.2mm 5.1mm - 1 8.4mm 36.2mm
RS Stock No. 367-5310
Mfr. Part No.74271222
HK$50.94
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. 466-9221
Mfr. Part No.0444167281
BrandFair-Rite
HK$21.68
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. 814-9970
Mfr. Part No.7427154S
HK$52.54
Each
units
STAR-RING Snap Ferrite General Application, Safety Relevant Application 4W620 - No Yes - 43 x 20 x 32mm 16mm - 1 20mm 32mm