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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Beskrivning Pris 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-artikelnummer 466-9120
Tillv. art.nr0431167281
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- 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-artikelnummer 163-5436
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STAR-RING Snap Ferrite General Application, Safety Relevant Application 4W620 - No Yes 100 55 x 20 x 44mm 27.5mm - 1 20mm 44mm
RS-artikelnummer 167-8217
Tillv. art.nrB62152A0007X001
VarumärkeEPCOS
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B62152 Double Aperture Core Broadband Transformers - - - - - 7.25 x 4.2 x 6.2mm 1.7mm - 2 4.2mm 6.2mm
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STAR-CLIP Snap Ferrite General Application, Safety Relevant Application Ferrite - - - - 26 x 16 x 20mm - - - 16mm 20mm
RS-artikelnummer 814-3382
Tillv. art.nr432703021311
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- Cable Shield EMI Suppression 4S2 Material - - - - 25.9 Dia. x 28.6mm 12.8mm - 1 - 28.6mm
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STAR-RING Snap Ferrite General Application, Safety Relevant Application 4W620 - No Yes 100 55 x 20 x 44mm 27.5mm - 1 20mm 44mm
RS-artikelnummer 170-3332
Tillv. art.nrZCAT2436-1330A-BK
VarumärkeTDK
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ZCAT Clamp Filter Audio Equipment, Copiers, Digital Telephones, Electronic Musical Instruments, Facsimiles, HDDs, Monitors, PCs, Video Games, Word Processors - - - Yes 30Ω 23.5 Dia. x 36mm 13mm - 1 - 36mm
RS-artikelnummer 168-3184
Tillv. art.nr74271151S
VarumärkeWurth Elektronik
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STAR-TEC Snap Ferrite - Nickel Zinc - Yes Yes - 49 x 39 x 35 35mm - 1 39mm 35mm
RS-artikelnummer 923-6166
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STAR-TEC Snap Ferrite EMI Suppression 4 W 620 - Yes Yes 425Ω 43 x 56 x 47mm 17 → 21mm - 1 56mm 47mm
RS-artikelnummer 109-4161
Tillv. art.nrZCAT6819-5230D
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ZCAT Bead EMC Absorption 30 Material - - - - 18.5 Dia. x 67.5mm 52mm - 1 16mm -
RS-artikelnummer 916-4314
Tillv. art.nrZCAT1518-0730-BK
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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-artikelnummer 466-9237
Tillv. art.nr0444173551
VarumärkeFair-Rite
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- Round Cable Snap-Its EMI Suppression 43 Material, 44 Material - - Yes - 29.2 x 14.7 x 42mm 18.8mm - 1 14.7mm 42mm
RS-artikelnummer 162-0177
Tillv. art.nrB62152A0004X001
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B62152 Multi Aperture Core Broadband Transformers - - - - - 14.5 x 8.5 x 8.3mm 3.4mm - - 8.5mm 8.3mm
RS-artikelnummer 151-2785
Tillv. art.nr475178281
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04 Round Cable Snap-Its EMI Suppression 75 Material - - Yes - 39.4 x 21 x 21mm 9mm - 1 21mm 21mm
RS-artikelnummer 169-6794
Tillv. art.nrESD-SR-160
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ESD-SR Snap-on Cores Snap Ferrite Consumer Electronics Ferrite - - Yes - 20.2 x 39 x 20mm 9mm - 1 39mm 20mm
RS-artikelnummer 168-3191
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STAR-TEC Snap Ferrite - Nickel Zinc - Yes Yes - 62 x 60 x 55 55mm - 1 60mm 55mm
RS-artikelnummer 222-4416
Tillv. art.nrMTFC 231114T
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MTFC Toroid Core Computer Peripherals Ferrite - - Yes 121 26.6 Dia. x 18.6mm 10.9mm - 1 - 18.6mm
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Tillv. art.nr0443164151
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- Round Cable Snap-Its EMI Suppression 43 Material, 44 Material - - Yes 250 29 x 14.8 x 32.5mm 13.05mm - 1 14.8mm 32.5mm
RS-artikelnummer 195-3893
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STAR-GAP Snap Ferrite Bluetooth, LAN Network, Wireless Lan 4 W 620 - Yes Yes - 35 x 31.5 x 28.3mm 12.5mm - 1 31.5mm 28.3mm
RS-artikelnummer 163-3990
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WE-NCF Split Core - 4W620 - - Yes 200Ω 59 x 35 x 44.6mm 7.8mm - 1 35mm 44.6mm
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