Requirements for soft magnetic materials and core components

Electronic devices are increasingly developing in the direction of miniaturization, high performance and high speed, so new requirements are put forward for high-frequency inductive components, and the performance of ferrite cores as inductive components is further required to be improved and improved. The requirements for magnetic core components are even higher. A good soft magnetic material should meet the following basic requirements: (1) In order to improve functional efficiency, the initial permeability and maximum permeability should be high; (2) In order to save resources, be light, thin and short, and respond quickly to the polarity of the external magnetic field. Inversion, the residual magnetic flux density should be low, and the saturation magnetic induction intensity should be high; (3) low loss, improve functional efficiency; (4) small coercivity, improve high-frequency magnetic performance; (5) high resistivity, improve high-frequency (6) Low magnetostriction coefficient, reducing noise; (7) The magnetic anisotropy coefficient K as the basic characteristic is low, and it is easy to magnetize in all crystallographic directions.