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. 111-0865
Mfr. Part No.ZCAT2235-1030A
BrandTDK
R 22.035
Each (On a Reel of 400)
units
ZCAT Bead EMC Absorption 30 Material - - - - 28 Dia. 35mm 10mm - 1 10mm 20mm
RS stock no. 741-3056
Mfr. Part No.ZCAT2235-1030A
BrandTDK
R 34.91
Each
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
R 20.199
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
R 35.248
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. 163-3527
Mfr. Part No.74272733
R 70.702
Each (In a Box of 38)
units
STAR-FIX Snap Ferrite EMI Suppression 8W5000 - No Yes - 18.2 x 21.7 x 35.1mm 8mm - 1 35.1mm 18.2mm
RS stock no. 774-0639
Mfr. Part No.ZCAT1730-0730A
BrandTDK
R 26.01
Each
units
ZCAT Ferrite Core USB 30 Material - - Yes - 23 Dia. x 30mm 7mm - 1 16.5mm 17.4mm
RS stock no. 109-4164
Mfr. Part No.ZCAT1730-0730A
BrandTDK
R 13.961
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. 736-1920
Mfr. Part No.74272733
R 75.39
Each
units
STAR-FIX Snap Ferrite EMI Suppression 8W5000 - No Yes - 18.2 x 21.7 x 35.1mm 8mm - 1 35.1mm 18.2mm
RS stock no. 831-9504
Mfr. Part No.ZCAT12V-BK
BrandTDK
R 94.19
Each
units
ZCAT Cable Core Automotive ECUs - - - - - 27.5 x 34.6 x 27mm 12mm - 1 34.6mm 27mm
RS stock no. 165-3128
Mfr. Part No.ZCAT12V-BK
BrandTDK
R 64.715
Each (In a Box of 120)
units
ZCAT Cable Core Automotive ECUs - - - - - 27.5 x 34.6 x 27mm 12mm - 1 34.6mm 27mm
RS stock no. 814-9982
Mfr. Part No.74271633
R 85.38
Each
units
STAR-GAP Snap Ferrite General Application, Safety Relevant Application 4W620 - No Yes - 35.1 x 21.7 x 19mm 4.5 → 8mm - 1 21.7mm 19mm
RS stock no. 163-5437
Mfr. Part No.74271633
R 81.32
Each (In a Box of 38)
units
STAR-GAP Snap Ferrite General Application, Safety Relevant Application 4W620 - No Yes - 35.1 x 21.7 x 19mm 4.5 → 8mm - 1 21.7mm 19mm
RS stock no. 500-2972
Mfr. Part No.74271622S
R 106.04
Each
units
STAR-GAP STAR-GAP - 4W620 - - Yes 140Ω 31.5 x 35 x 28.3mm 13mm - 1 35mm 28.3mm
RS stock no. 163-3204
Mfr. Part No.74271622S
R 87.154
Each (In a Box of 20)
units
STAR-GAP STAR-GAP - 4W620 - - Yes 140Ω 31.5 x 35 x 28.3mm 13mm - 1 35mm 28.3mm
RS stock no. 774-0632
Mfr. Part No.ZCAT1325-0530A
BrandTDK
R 16.65
Each
units
ZCAT Ferrite Core Suppression Components 30 Material - - - - 20 Dia. x 25mm 5mm - 1 12.8mm 11.2mm
RS stock no. 466-9215
Mfr. Part No.0444164951
BrandFair-Rite
R 40.68
Each
units
- Round Cable Snap-Its EMI Suppression 43 Material, 44 Material - - Yes - 17.3 x 8.4 x 36.2mm 5.1mm - 1 8.4mm 36.2mm
RS stock no. 109-4162
Mfr. Part No.ZCAT1325-0530A
BrandTDK
R 10,902.51
1 Reel of 1344
Reel(s)
ZCAT Ferrite Core Suppression Components 30 Material - - - - 20 Dia. x 25mm 5mm - 1 12.8mm 11.2mm
RS stock no. 170-3327
Mfr. Part No.ZCAT1730-0730A-BK
BrandTDK
R 14.675
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. 260-6543
Mfr. Part No.7427141
R 102.48
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. 916-4318
Mfr. Part No.ZCAT1730-0730A-BK
BrandTDK
R 29.506
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