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$51.69
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 163-5432
製造零件編號74271221S
HK$50.402
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 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 185-7410
製造零件編號74272221
HK$82.32
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 - - 41.6 x 33.5 x 28.4mm 8.5 10.5mm - 1 41.6mm 28.4mm
RS庫存編號 814-9998
製造零件編號74271111
HK$36.31
單位
STAR-TEC Snap Ferrite General Application, Safety Relevant Application 4W620 - No Yes 320 40.5 x 23.7 x 18.2mm - - 1 23.7mm 18.2mm
RS庫存編號 163-5436
製造零件編號7427155S
HK$56.693
個 (以毎盒:30)
單位
STAR-RING Snap Ferrite General Application, Safety Relevant Application 4W620 - No Yes 100 55 x 20 x 44mm 27.5mm - 1 20mm 44mm
RS庫存編號 815-0024
製造零件編號74271722S
HK$63.23
單位
STAR-FIX 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 668-8864
製造零件編號74271633S
HK$58.29
單位
STAR-GAP STAR-GAP General Application 4W620 - - Yes - 21.7 x 35.1 x 19mm - - 1 35.1mm 19mm
RS庫存編號 163-5426
製造零件編號74271111
HK$35.721
個 (以毎盒:38)
單位
STAR-TEC Snap Ferrite General Application, Safety Relevant Application 4W620 - No Yes 320 40.5 x 23.7 x 18.2mm - - 1 23.7mm 18.2mm
RS庫存編號 923-6166
製造零件編號74271211S
HK$166.04
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 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 163-8200
製造零件編號74271211
HK$157.36
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 815-0015
製造零件編號74271733
HK$29.26
單位
STAR-FIX Snap Ferrite General Application, Safety Relevant Application 4W620 - No Yes 246Ω 35.1 x 21.7 x 18.2mm 8mm - 1 21.7mm 18.2mm
RS庫存編號 163-5440
製造零件編號74271733S
HK$29.78
個 (以毎盒:38)
單位
STAR-FIX Snap Ferrite General Application, Safety Relevant Application 4W620 - No Yes 246Ω 35.1 x 21.7 x 18.2mm 8mm - 1 21.7mm 18.2mm
RS庫存編號 163-5437
製造零件編號74271633
HK$46.64
個 (以毎盒:38)
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 923-6163
製造零件編號74271211
HK$167.51
單位
STAR-TEC Snap Ferrite EMI Suppression 4 W 620 - No Yes 425Ω 43 x 56 x 47mm 17 → 21mm - 1 56mm 47mm
RS庫存編號 163-3527
製造零件編號74272733
HK$46.628
個 (以毎盒:38)
單位
STAR-FIX Snap Ferrite EMI Suppression 8W5000 - No Yes - 18.2 x 21.7 x 35.1mm 8mm - 1 35.1mm 18.2mm
RS庫存編號 185-7111
製造零件編號74272221
HK$57.913
Each (In a Tray of 26)
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 - - 41.6 x 33.5 x 28.4mm 8.5 10.5mm - 1 41.6mm 28.4mm