This product is mainly used in circuits as electromagnetic interference (EMI) filter, can reduce high frequency noise and inhibit electromagnetic interference, also called anti-interference magnetic ring, nickel-zinc ferrite material, the surface of the non-magnetic, outer diameter of 6mm, hole 3mm, thickness of 2.5mm, the need for customers are welcome to send inquiries to consult the wholesale price.
Principles of using magnetic cores;
The longer the magnetic ring, the better
The tighter the combination between the aperture and the cable passing through, the better.
When there is interference at the low-frequency end, it is recommended to wrap the cable around 2-3 turns. When there is interference at the high-frequency end, it is not possible to wrap around turns (due to the presence of distributed capacitance), and a longer magnetic ring should be selected.
The installation position of the magnetic ring should be as close as possible to the interference source, that is, it should be close to the inlet and outlet of the cable.
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