High quality core wholesale

    In addition to the three major requirements that a good magnetic core material should have

    1. The Curie temperature TC should be high enough.

    The temperature of the inductor core itself can generally reach above 90 ℃, if its Curie temperature is not high enough, then it will make the inductor core's own temperature close to the residence Inside the temperature, the initial permeability μi of the inductor core, the saturation magnetic flux density BS, and the inductance value will drop sharply.

    2. Appropriate temperature coefficient.

    In inductance magnetic cores, different temperature coefficients should be required in the magnetic components of inductance magnetic cores of different purposes and different ranges of application. If we cannot guarantee that the temperature coefficient of the magnetic material is not completely satisfactory, we should at least guarantee its inductance and power consumption so that it can change as little as possible with the increase in temperature.

    3. The initial permeabilityμi should be moderate.

    The initial permeability in the inductor coreμi is a very important aspect. For the selection of the initial permeability of the inductor core assembly, we must To meet the requirements of Curie temperature TC. For example, for materials with permeability μi above 4000, the Curie temperature should mostly be lower than 150°C, or even lower than 130°C, so use μi2000~3000 magnetic cores to make choke coils and other inductances. The device is more suitable.

    A good core material should meet the above three requirements, for resistivity ρ, saturation magnetic flux density BS, hysteresis loop and magnetic core The testing, screening, and classification of components also have certain requirements.