With the development of miniaturization,chip type,high frequency and high power density of electronic devices,surface mounted devices(SMD)inductors have been widely used for their advantages of high inductance,high current,small magnetic leakage and size diversity.Firstly,the classification and characteristics of soft magnetic powders used in SMD inductance core are introduced,including carbonyl iron,FeSiCr,amorphous/nanocrystalline,and then the preparation process,characteristics,insulation coating,and their effects on inductance characteristics are introduced.Finally,the future development of soft magnetic powder for SMD inductance core is prospected.
SMD inductancesoft magnetic powderinsulation coatingmagnetic property
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