Iron silicon aluminum magnetic ring
Characteristics of iron-silicon-aluminum magnetic ring: lower loss than iron powder core, good DC bias current characteristics, cost between iron powder core and iron nickel-molybdenum, material permeability (μ) are: 26, 60, 75, 90, The standard color of 125 iron silicon aluminum is black.
Iron core magnetic ring
Iron powder core materials generally use different coating colors to distinguish different materials, and the international uniform coloring standard is as follows:
2 materials
2 material: Red body, transparent (FERRITE color) bottom surface----This material has low magnetic permeability, which can reduce the AC flux density during operation compared with other materials without gap loss.
8
8 material: Yellow body, red bottom surface---This material has low core loss and good linearity under high bias current, which is a good high-frequency material and the most expensive material.
18
18 material: light green body, red bottom surface---this material is the same as 8 material, the core loss is low, but the magnetic permeability is higher and the cost is lower, and there is good DC saturation characteristics.
26
26 material: yellow body, white bottom surface - the most popular material, is a cost-effective general-purpose material, suitable for a wide range of applications such as power conversion and line filtering.
28
28 material: gray body, green bottom surface --- has good linearity, low cost and relatively low magnetic permeability, widely used with large size high power UPS choke.
33
33 material: It is a material that can replace 8 materials but is not expensive. It is suitable for the case where the core loss is not important at high frequency, and the linearity is good at high bias current.
40 material
40 material: green body, yellow bottom surface --- the cheapest material, its characteristics are quite similar to 26 materials, generally used in larger sizes
52
52 material: Light green body, blue bottom surface---The material has low core loss at high frequency, and the magnetic permeability is the same as that of -26 material. It is widely used in new high-frequency current transformers.
Magnetic material list
Below are the magnetic permeability, tolerance, temperature coefficient of magnetic permeability of more magnetic materials, and a summary of the standard colors.
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