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. 774-0639
Mfr. Part No.ZCAT1730-0730A
BrandTDK
HK$17.81
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
HK$7.519
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. 109-4167
Mfr. Part No.ZCAT2436-1330A
BrandTDK
HK$16.923
Each (On a Reel of 400)
units
ZCAT Ferrite Core Suppression Components 30 Material - - - - 28 Dia. x 35mm 13mm - 1 19.5mm 17.4mm
RS Stock No. 774-0648
Mfr. Part No.ZCAT2436-1330A
BrandTDK
HK$34.72
Each
units
ZCAT Ferrite Core Suppression Components 30 Material - - - - 28 Dia. x 35mm 13mm - 1 19.5mm 17.4mm
RS Stock No. 170-3333
Mfr. Part No.ZCAT3035-1330-BK
BrandTDK
HK$25.379
Each (In a Box of 200)
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. 916-4336
Mfr. Part No.ZCAT3035-1330-BK
BrandTDK
HK$46.27
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. 741-3056
Mfr. Part No.ZCAT2235-1030A
BrandTDK
HK$25.84
Each
units
ZCAT Bead EMC Absorption 30 Material - - - - 28 Dia. 35mm 10mm - 1 10mm 20mm
RS Stock No. 111-0865
Mfr. Part No.ZCAT2235-1030A
BrandTDK
HK$13.373
Each (On a Reel of 400)
units
ZCAT Bead EMC Absorption 30 Material - - - - 28 Dia. 35mm 10mm - 1 10mm 20mm
RS Stock No. 109-4159
Mfr. Part No.ZCAT3618-2630D
BrandTDK
HK$11.454
Each (On a Reel of 480)
units
ZCAT Bead EMC Absorption 30 Material - - - - 17.5 Dia. x 33.5mm 26mm - 1 11.5mm -
RS Stock No. 916-4314
Mfr. Part No.ZCAT1518-0730-BK
BrandTDK
HK$10.44
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 - 25 - Yes 50Ω 15 Dia. x 22mm 7mm - 1 - 22mm
RS Stock No. 774-0635
Mfr. Part No.ZCAT1518-0730
BrandTDK
HK$10.87
Each
units
ZCAT Ferrite Core Suppression Components 30 Material - - - - 15 Dia. X 18mm 7mm - 1 15mm -
RS Stock No. 170-3331
Mfr. Part No.ZCAT2035-0930A-BK
BrandTDK
HK$11.196
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. 109-4160
Mfr. Part No.ZCAT3035-1330
BrandTDK
HK$23.536
Each (On a Reel of 200)
units
ZCAT Bead EMC Absorption 30 Material - - - - 34 Dia. x 39mm 13mm - 1 30mm -
RS Stock No. 109-4162
Mfr. Part No.ZCAT1325-0530A
BrandTDK
HK$4.645
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. 916-4327
Mfr. Part No.ZCAT2035-0930A-BK
BrandTDK
HK$20.888
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. 109-4165
Mfr. Part No.ZCAT2035-0930A
BrandTDK
HK$11.196
Each (On a Reel of 480)
units
ZCAT Ferrite Core Suppression Components 30 Material - - - - 19.5 Dia. x 35mm 9mm - 1 20.5mm -
RS Stock No. 741-3068
Mfr. Part No.ZCAT3035-1330
BrandTDK
HK$45.47
Each
units
ZCAT Bead EMC Absorption 30 Material - - - - 34 Dia. x 39mm 13mm - 1 30mm -
RS Stock No. 165-3128
Mfr. Part No.ZCAT12V-BK
BrandTDK
HK$31.992
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. 170-3326
Mfr. Part No.ZCAT1518-0730-BK
BrandTDK
HK$5.07
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. 774-0641
Mfr. Part No.ZCAT2035-0930A
BrandTDK
HK$20.19
Each
units
ZCAT Ferrite Core Suppression Components 30 Material - - - - 19.5 Dia. x 35mm 9mm - 1 20.5mm -