1. Gray ferrite ring: It is usually used for anti-interference. It is generally made of manganese nickel zinc. It can be divided into high and low frequencies from the manganese nickel zinc material. The so-called high and low frequencies refer to the working frequency of the ferrite ring. There is one thing in common between the two, that is, it plays an anti-interference role, but the division of labor is different.
2. Black spray ferrite ring: also known as iron silicon aluminum ring. It is not difficult to see from the color that the appearance of the black ferrite ring is relatively bright, because it has been sprayed with black paint, which is particularly eye-catching. This color of ferrite ring is generally used in transformers or power products. At the same time, the appearance is not only sprayed with insulating paint but also contains model numbers. With digital numbers, you can know the characteristics and specifications of this ferrite ring more clearly.
3. Red sprayed ferrite magnetic ring: You may not know why there are red ferrite magnetic rings. In fact, the color of the ferrite magnetic ring is not important. What is important is its performance. The color can be varied, but the characteristics are not. The ferrite magnetic rings containing red are all colored according to customer requirements. They are mainly to match the color requirements of electronic products. There is no change in its characteristics, so you don't have to pay too much attention to whether the ferrite magnetic ring is red.
4. Yellow sprayed ferrite magnetic ring: Yellow ferrite magnetic rings are also widely used in the market, because the yellow ferrite magnetic ring is more symmetrical with the copper tin wire. However, in order to look good, white edges are added to the side, so it is also called yellow and white rings in the market.

