Ferrite ring inductance is divided into manganese zinc ferrite ring and nickel zinc ferrite ring. According to the different materials used, the calcined materials are different. Nickel-zinc ferrite magnetic ring is mainly made of oxides or salts of iron, nickel and zinc, and is manufactured by electronic ceramic process. Manganese zinc ferrite magnetic ring This is made of iron, manganese, zinc oxides and salts, also made of electronic ceramic process. They are basically the same in material and technology, the difference is that manganese and nickel these two materials are different. It is these two different materials, their use in the same product effect is very different.

　　The manganese zinc material has high permeability, while the nickel zinc ferrite has low permeability. Manganese zinc ferrites can be used in applications with operating frequencies below 5MHz. Nickel-zinc ferrites have high resistivity and can be used in frequency ranges from 1MHz to hundreds of megahertz. However, common-mode inductors are excluded. For applications below 70MHz, the impedance of Mn-Zn materials makes them the best choice. For applications ranging from 70MHz to hundreds of gigahertz, nickel-zinc materials are recommended. Manganese zinc ferrite rings are generally used in the frequency range of KHZ to megahertz. The magnetic core, magnetic head and antenna rod of inductor, transformer and filter can be made. Nickel-zinc ferrite magnetic ring can be used to make the core of mid-cycle transformer, magnetic head, short-wave antenna rod, tuned inductance reactor and magnetic saturation amplifier. The application range and product maturity of nickel-zinc ferrite magnetic ring are much more advantages than that of Mn-zinc ferrite magnetic ring.

　　When two magnetic cores are mixed together, how do you tell them apart? Two specific methods are described below.

　　1, visual method: because the general permeability of manganese zinc ferrite is relatively high, the grain size is larger, the structure is also relatively tight, often black. And nickel zinc ferrite general permeability is relatively low, the grain is fine and small, and is porous structure, often brown, especially in the production process when the sintering temperature is relatively low. According to these characteristics, we can use the visual method to distinguish. In the bright place, if you see the color of ferrite black, there are dazzling bright crystals, this magnetic core is manganese zinc ferrite; If you see ferrite with brown, dull luster, grain is not dazzling, the magnetic core for nickel zinc ferrite. Visual method is a rough method, after a certain practice can also master.

　　2, instrument method: This method is more reliable, but need some instruments, such as high resistance meter, high frequency Q table.

　　The above is the difference between manganese zinc and nickel zinc of ferrite ring inductance related knowledge, hope to help you.