What material is the magnetic ring made of? Just look at the color!

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What material is the magnetic ring made of? Just look at the color! [Copy link]

What material is the magnetic ring made of? Just look at the color!!!

Send-Si-Aluminum Magnetic Ring

Features of Send-Si-Aluminum Magnetic Ring: Lower loss than iron powder core, good DC bias current characteristics, cost is between iron powder core and iron-nickel-molybdenum, material permeability (μ) are: 26, 60, 75, 90, 125 respectively, the standard color of Send-Si-Aluminum is black.

Iron powder core magnetic ring

Iron powder core materials generally use different coating colors to distinguish different materials. The international unified color coating standard is as follows:

2 material

2 material: red body, transparent (FERRITE color) bottom----This material has low magnetic permeability and can reduce the AC flux density during operation more than other materials without added gap loss.

8 material

8 material: yellow body, red bottom---This material has low core loss and good linearity under high bias current conditions. It is a good high-frequency material and also the most expensive material.

18 Material

18 Material: Light Green Body, Red Bottom---This material has the same low core loss as 8 Material, but has higher permeability and lower cost, and has good DC saturation characteristics

26 Material

26 Material: Yellow Body, White Bottom---The most popular material, it is a cost-effective general-purpose material suitable for a wide range of uses such as power conversion and line filtering.

28 Material

28 Material: Gray body, green bottom --- has good linearity, low cost and relatively low magnetic permeability, widely used in large-sized high-power UPS chokes.

33 Material

33 Material: is a material that can replace 8 material but is not expensive. It is suitable for situations where core loss is not important at high frequencies and has good linearity at high bias currents.

40 material

40 material: green body, yellow bottom---the cheapest material, its characteristics are quite similar to 26 material, commonly used in larger sizes

52 material

52 material: light green body, blue bottom---this material has relatively low core loss at high frequency, and the magnetic permeability is the same as -26 material, and is widely used in new high-frequency chokes.

Magnetic Material List

Below is a brief table of more magnetic materials' magnetic permeability, tolerance, temperature coefficient of magnetic permeability, and standard colors.

btty038

It would be nice to break it down a little bit more, for example, under the condition of magnetic saturation,