Ferrite rings are toroidal (doughnut) shaped, or cylindrical shaped pieces of ferrite (a ceramic compound). What do they do? Ferrite rings help to protect against EMI (electromagnetic interference) and RFI (radio frequency interference). They prevent interference moving to a device or from a device. How do they work? Ferrite rings can suppress noise without grounding. Ferrites are able to attract magnetic flux. When a cable is passed through the ring, the magnetic fields created by the cable are concentrated within the ferrite ring. This magnetic energy is converted to heat and the ferrite dissipates this by magnetic loss. How are they used? Ferrite rings can often be seen with cables threaded through them. They are common place in electronics to help with noise suppression. The cable can also be wrapped about the ferrite ring numerous times. Ferrite rings can be incorporated into broadband transformers, pulse transformers and common mode chokes.
Description:
Roline gold dual link cables are digital visual
interface cables that sends Digital video signals between sources and displays. They are commonly used with notebooks or desktop computers, projectors and computer monitors. DVI Dual Link uses a pin arrangement ...
Description:
BLM series ferrite beads from Murata do not
require a ground connection and are ideal for use in circuits with unstable ground lines. These ferrite beads are designed to function nearly as resistors at noise frequencies, leaving signal wave forms ...
Description:
The ESD-R Series solid toroidal cores are designed
for use on round CablesA wide range of MnZn and NiZn options are available in Bare, Coated, and Case types. These are used in consumer electronics.
Description:
FS-1RN series toroidal cores made from iron powder
(26) for creating inductors. These FS-1RN toroidal cores are available in a range of sizes, please refer to datasheet for details. The AL value in the table applies to a core set ...