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庫存編號 367-5304
製造零件編號74271132
HK$56.60
單位
STAR-TEC STAR-TEC EMI Suppression 4 W 620 - No Yes 241Ω 36.3 x 24.2 x 19.7mm 7.0 → 8.5mm - 1 24.2mm 19.7mm
RS庫存編號 815-0002
製造零件編號74271221S
HK$49.75
單位
STAR-TEC Snap Ferrite General Application, Safety Relevant Application 4W620 - No Yes 270 42.2 x 33.6 x 29.5mm 10.5mm - 1 33.6mm 29.5mm
RS庫存編號 309-7962
製造零件編號74271221
HK$48.61
單位
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庫存編號 260-6543
製造零件編號7427141
HK$36.11
單位
- Ring Core General Application 4 W 620 - - Yes 97 15.5 x 30 x 36mm 15mm - 1 15.5mm 30mm
RS庫存編號 163-5432
製造零件編號74271221S
HK$45.90
個 (以毎盒:20)
單位
STAR-TEC Snap Ferrite General Application, Safety Relevant Application 4W620 - No Yes 270 42.2 x 33.6 x 29.5mm 10.5mm - 1 33.6mm 29.5mm
RS庫存編號 185-7535
製造零件編號74272211
HK$79.18
單位
STAR-TEC Snap Ferrite Especially for Applications in the Low Frequency Range from 300 kHz to 30 Mhz, Perfect for Applications with Varying Cable Diameter, Reusable because of the Key Technology Therefore Perfect for Test and Measuring Purposes and Cables with Difficult Access, Suppression of Electronic Ballasts (i.e. Neon Tube) in the Lighting Industry Manganese-Zinc (Coating) - Yes - - 56 x 47 x 43mm 17 → 21mm - 1 56mm 43mm
RS庫存編號 814-9973
製造零件編號7427711
HK$11.36
單位
- Snap Ferrite STAR-TEC 74271111/74271112 STAR-GAP 74271633 STAR-FIX 74271733 STAR-FIX LFS 74272733 Ferrite - - - - 26 x 16 x 18.5mm - - - 16mm 18.5mm
RS庫存編號 168-3184
製造零件編號74271151S
HK$82.93
個 (以毎盒:24)
單位
STAR-TEC Snap Ferrite - Nickel Zinc - Yes Yes - 49 x 39 x 35 35mm - 1 39mm 35mm
RS庫存編號 814-9982
製造零件編號74271633
HK$49.60
單位
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庫存編號 756-8395
製造零件編號7427155
HK$57.70
單位
STAR-RING Split Core For Mounting On Circuit Boards Midget Blind Rivet, Internal and External Computer Data and Power Cable, Perfect For Cables With Difficult Access Because Of Easy Installation and Removal 4W620 - No Yes 110Ω 55 x 20 x 44mm 27mm - 1 20mm 44mm
RS庫存編號 163-3530
製造零件編號74275815
HK$49.016
個 (以毎盒:30)
單位
STAR-BUENO Snap Ferrite EMI Suppression 4W620 - No Yes - 24 x 24 x 56.2mm 4.5 → 8.5mm - 1 56.2mm 24mm
RS庫存編號 814-9992
製造零件編號74271142S
HK$33.93
單位
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庫存編號 815-0011
製造零件編號74271722
HK$42.05
單位
- Snap Ferrite General Application, Safety Relevant Application 4W620 - No Yes 270Ω 35.1 x 31 x 28mm 12.5mm - 1 31mm 28mm
RS庫存編號 185-7492
製造零件編號74272151
HK$79.18
單位
STAR-TEC Snap Ferrite Especially for Applications in the Low Frequency Range from 300 kHz to 30 Mhz, Perfect for Applications with Varying Cable Diameter, Reusable because of the Key Technology Therefore Perfect for Test and Measuring Purposes and Cables with Difficult Access, Suppression of Electronic Ballasts (i.e. Neon Tube) in the Lighting Industry Manganese-Zinc (Coating) - Yes - - 49 x 39 x 35mm 12 → 15mm - 1 49mm 35mm
RS庫存編號 185-7113
製造零件編號74272151
HK$55.532
Each (In a Tray of 24)
單位
STAR-TEC Snap Ferrite Especially for Applications in the Low Frequency Range from 300 kHz to 30 Mhz, Perfect for Applications with Varying Cable Diameter, Reusable because of the Key Technology Therefore Perfect for Test and Measuring Purposes and Cables with Difficult Access, Suppression of Electronic Ballasts (i.e. Neon Tube) in the Lighting Industry Manganese-Zinc (Coating) - Yes - - 49 x 39 x 35mm 12 → 15mm - 1 49mm 35mm
RS庫存編號 367-5281
製造零件編號74271142
HK$33.02
單位
STAR-TEC STAR-TEC EMI Suppression 4 W 620 - No Yes 321Ω 32.5 x 18.8 x 13.2mm 5.4mm - 1 18.8mm 13.2mm
RS庫存編號 168-3194
製造零件編號74271151
HK$112.19
單位
STAR-TEC Snap Ferrite - Nickel Zinc - Yes Yes - 49 x 39 x 35 35mm - 1 39mm 35mm
RS庫存編號 163-3988
製造零件編號74271308
HK$34.62
Each (In a Tray of 36)
單位
WE-NCF Split Core - 4W620 - - Yes 93Ω 29.8 x 20.1 x 13mm 7.8mm - 1 20.1mm 13mm
RS庫存編號 163-8201
製造零件編號74271211S
HK$138.77
個 (以毎盒:20)
單位
STAR-TEC Snap Ferrite EMI Suppression 4 W 620 - Yes Yes 425Ω 43 x 56 x 47mm 17 → 21mm - 1 56mm 47mm
RS庫存編號 163-5431
製造零件編號74271142S
HK$33.524
個 (以毎盒:42)
單位
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