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.
Description:
Excellent absorption of high-frequency noise Minimises noise without
affecting signal quality Can be installed with one touch, without having to cut cables Series offers models for a range of cable outer diameters Suitable applications include PCs, monitors, HDDs, digital telephones and audio equipment. Clamp Filter, ZCAT Series.
Description:
This range of ferrite sleeves from our trusted
RS Pro brand features a hinged clamp. Construction with precision formed smooth surfaces prevents any damage from occurring to cables or wire insulation. With internal dimensions between 1.9 mm and 35 mm for the radius, and with different shapes available, there is ...
Description:
Round cable snap-its can easily accommodate round cables
or bundled wires with diameters from 2.5 mm (0.100) to 25.4 mm (1.000). These assemblies are available in four ferrite material classes to suppress differential or common-mode conducted EMI from 1 MHz into the GHz region. The polypropylene cases are meeting the ...
Description:
These split ferrite cores reduce the electromagnetic interference
from being induced in or radiated from data and power cables. High attenuation ratings are achieved with the housing design and the special process steps during the ferrite manufacture. The special snap lock makes the ferrite sleeve suitable for use with a ...
