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Iron powder core, namely magnetic material ferric oxide, is mainly used for high frequency inductor to solve electromagnetic compatibility (EMC) problems in electrical circuits.
We supply various series iron powder cores, the material table as below:
MCT MATERIAL No. |
Color |
Practical Frequency/range |
Initial Permeability |
-2 |
Red/Gray |
250KHz-10MHz |
10 |
-6 |
Yellow/Gray |
3MHz-40MHz |
8.5 |
-8 |
Yellow/Red |
20KHz-1MHz |
35 |
-10 |
Black/Gray |
15MHz-100MHz |
6 |
-14 |
Black/Red |
500KHz-15MHz |
14 |
-15 |
Red/White |
150KHz-3MHz |
25 |
-17 |
Blue/Yellow |
20MHz-200MHz |
4 |
-18 |
Green/Red |
10KHz-1MHz |
55 |
-26 |
Yellow/White |
1KHz-500KHz |
75 |
-28 |
Gray/Green |
50KHz-100KHz |
22 |
-33 |
Gray/Yellow |
20KHz-5MHz |
33 |
-34 |
Gray/Blue |
20KHz-5MHz |
33 |
-35 |
Yellow/Gray |
20KHz-5MHz |
33 |
-38 |
Gray/Black |
1KHz-500KHz |
85 |
-40 |
Green/Yellow |
1KHz-1MHz |
60 |
-45 |
Black |
1KHz-500KHz |
100 |
-52 |
Green/Blue |
1KHz-1MHz |
75 |
Material Description
-2/14 Materials
The low permeability of these materials will result in lower operating AC flux density than with other materials with no additional gap-loss,The -14 material is similar to -2 material with slightly higher permeability.
-8 Material
This material has low core loss and good linearity under high bias conditions,a good high frequency material,while the highest price material.
-18 Material
This material has low core loss similar to the -8 material with higher Permeability and a lower cost, good DC saturation characteristics.
-26 Material
It is a cost effective general purpose material that is used in a wide variety of power conversion and line filter applications.
-33 Material
Low cost,and relatively low Permeability of this material make it popular in large sizes for high power UPS chokes.
-34/35 Material
An alternate to the -8 material, used for high frequency core and loss is not critical. Good linearity with high bias.
-38 Material
A higher permeability alternate to the -26 material. A low cost material best used at line frequency.
-40 Material
The least expensive material. It has characteristics quite similar to the very popular -26 material. Popular in large sizes.
-45 Material
The highest Permeability material.A high Permeability alternate to -52 material with slightly higher core loss.
-52 Material
This material has lower core at high frequency and the same Permeability as The -26 material.
It is very popular for high frequency choke inductor designs, we also accept custom made inductor and OEM service.