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 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 Outer Width
RS Stock No. 774-0639
Mfr. Part No.ZCAT1730-0730A
BrandTDK
HK$22.76
Each
units
ZCAT Ferrite Core 30 Material 55Ω No Yes 110Ω 23 Dia. x 30mm 7mm - 1 16.5mm 17.4mm 30mm
RS Stock No. 109-4164
Mfr. Part No.ZCAT1730-0730A
BrandTDK
HK$10.846
Each (On a Reel of 840)
units
ZCAT Ferrite Core 30 Material 40Ω No Yes 100Ω 23 Dia. x 30mm 7mm - 1 16.5mm 17.4mm 30mm
RS Stock No. 222-4337
Mfr. Part No.MSFC4-T
BrandRichco
HK$79.62
Each
units
MSFC Cable Core A5 95Ω No Yes 195Ω 13.2 x 14.3mm 5mm - 1 - 14.3mm 13.2mm
RS Stock No. 367-5304
Mfr. Part No.74271132
HK$66.90
Each
units
STAR-TEC STAR-TEC 4 W 620 180Ω No Yes 350Ω 36.3 x 24.2 x 19.7mm 8.5mm - 1 24.2mm 19.7mm 36.3mm
RS Stock No. 109-4167
Mfr. Part No.ZCAT2436-1330A
BrandTDK
HK$19.789
Each (On a Reel of 400)
units
ZCAT Ferrite Core 30 Material 30Ω No Yes 100Ω 28 Dia. x 35mm 13mm - 1 19.5mm 17.4mm 35mm
RS Stock No. 222-4371
Mfr. Part No.MSFC 10-T
BrandRichco
HK$149.37
Each
units
MSFC Cable Core A5 70Ω No Yes 127Ω 28 x 29.8mm 10.5mm - 1 - 29.8mm 28mm
RS Stock No. 774-0648
Mfr. Part No.ZCAT2436-1330A
BrandTDK
HK$35.65
Each
units
ZCAT Ferrite Core 30 Material 175Ω No Yes 320Ω 28 Dia. x 35mm 13mm - 1 19.5mm 17.4mm 35mm
RS Stock No. 466-9142
Mfr. Part No.0431173951
BrandFair-Rite
HK$12.72
Each
units
- Round Cable Snap-Its 31 Material 162Ω No Yes 255Ω 12.8 x 5.6 x 25mm 5.1mm - 1 5.6mm 25mm 12.8mm
RS Stock No. 916-4336
Mfr. Part No.ZCAT3035-1330-BK
BrandTDK
HK$56.14
Each (In a Pack of 2)
units
ZCAT Clamp Filter 30 Material - No Yes 72Ω 30 Dia. x 39mm 13mm - 1 - 39mm 30mm
RS Stock No. 173-0002
Mfr. Part No.0443167251
BrandFair-Rite
HK$19.555
Each (In a Box of 196)
units
- Round Cable Snap-Its 43 Material, 44 Material 138Ω No Yes 225Ω 22.1 x 11 x 32.3mm 10.15mm - 1 11mm 32.2mm 22.1mm
RS Stock No. 466-9192
Mfr. Part No.0444164181
BrandFair-Rite
HK$56.64
Each
units
- Round Cable Snap-Its 43 Material, 44 Material 94Ω No Yes 150Ω 31 x 15.25 x 39.4mm 13.05mm - 1 15.25mm 39.4mm 31mm
RS Stock No. 260-6543
Mfr. Part No.7427141
HK$43.52
Each
units
- Ring Core 4 W 620 72Ω No Yes 121Ω 15.5 x 30 x 36mm 15mm - 1 15.5mm 30mm 36mm
RS Stock No. 170-3333
Mfr. Part No.ZCAT3035-1330-BK
BrandTDK
HK$28.875
Each (In a Box of 200)
units
ZCAT Clamp Filter Ferrite 80Ω No Yes 150Ω 30 Dia. x 39mm 13mm - 1 - 39mm 30mm
RS Stock No. 169-6797
Mfr. Part No.ESD-SR-S10
BrandKEMET
HK$10.101
Each (In a Box of 800)
units
ESD-SR Snap-on Cores Snap Ferrite Ferrite - No Yes - 15.5 x 18.5 x 14mm 6mm - 1 18.5mm 14mm 15.5mm
RS Stock No. 173-0008
Mfr. Part No.0444164181
BrandFair-Rite
HK$31.506
Each (In a Box of 110)
units
- Round Cable Snap-Its 43 Material, 44 Material 138Ω No Yes 230Ω 31 x 15.25 x 39.4mm 13.05mm - 1 15.25mm 39.4mm 31mm
RS Stock No. 219-2656
Mfr. Part No.0443167251
BrandFair-Rite
HK$27.52
Each
units
- Round Cable Snap-Its 43 Material, 44 Material 144Ω No Yes 240Ω 22.1 x 11 x 32.3mm 10.15mm - 1 11mm 32.2mm 22.1mm
RS Stock No. 811-9133
Mfr. Part No.ESD-SR-S10
BrandKEMET
HK$20.40
Each
units
ESD-SR Snap-on Cores Snap Ferrite Ferrite 55Ω No Yes 110Ω 15.5 x 18.5 x 14mm 6mm - 1 18.5mm 14mm 15.5mm
RS Stock No. 111-0865
Mfr. Part No.ZCAT2235-1030A
BrandTDK
HK$15.552
Each (On a Reel of 400)
units
ZCAT Bead 30 Material 50Ω No Yes 100Ω 28 Dia. 35mm 10mm - 1 10mm 20mm 35mm
RS Stock No. 116-1487
Mfr. Part No.11.05.1010
BrandRotronic
HK$50.75
Each
units
EMV Conduit Core Ferrite 95Ω No Yes 120Ω 24.5 x 32 x 23.5mm 10mm - 1 32mm 23.5mm 24.5mm
RS Stock No. 163-5432
Mfr. Part No.74271221S
HK$62.80
Each (In a Box of 20)
units
STAR-TEC Snap Ferrite 4W620 138Ω No Yes 225Ω 42.2 x 33.6 x 29.5mm 10.5mm - 1 33.6mm 29.5mm 42.2mm