Crgo Silicon Steel Toroidal Transformer Core for Power Transformer Toroid Transformer Ferrite Core
- Premium CRGO Silicon Steel Core Performance: Cold-rolled grain-oriented material delivers superior magnetic permeability, low core loss, and maximum energy efficiency.
- Toroidal Low-EMI Design: Circular structure ensures excellent magnetic flux distribution, reduces electromagnetic interference, and minimizes heat generation.
- Compact High Power Density: Smaller footprint maintains high power output, ideal for isolation transformers, voltage regulators, and switching power supplies.
- Versatile Customizable Specifications: Multiple sizes available to meet diverse voltage and current requirements for industrial and commercial applications.
- Long-Lasting Cost-Effective Operation: Professional-grade build ensures reliable performance, extended service life, and economical power solution integration.
- Overview
- Recommended Products
The high-performance CRGO Silicon Steel Toroidal Transformer Core delivers exceptional electromagnetic performance for power transformer applications. Crafted from premium cold-rolled grain-oriented silicon steel, this toroid core features superior magnetic permeability and low core losses, ensuring maximum energy efficiency and minimal heat generation. Its circular toroidal design provides excellent magnetic flux distribution and reduces electromagnetic interference (EMI) compared to traditional transformer cores. The core's compact structure allows for smaller transformer sizes while maintaining high power density. Ideal for various power applications including isolation transformers, voltage regulators, and switching power supplies. Available in multiple sizes and specifications to meet different voltage and current requirements. This professional-grade transformer core offers reliable performance, extended service life, and cost-effective operation for industrial and commercial power solutions.







Material |
High quality CRGO steel with low iron-loss and high permeability |
Features |
Lower core loss, no
leakage magnetic flux,
excellent DC bias
characteristics, high
magnetic permeability
range from 250 to 1200.
|
Applications |
50Hz and 400Hz transformers.current transformers.chokes and other magnetic
components of
electronic equipments.
|
Manufacturing Process





Model |
Core Size (MM) |
Finished Size (MM) |
Cross Area (cm2) |
Average Path Length(CM) |
One-turn Loop Independence AL(μH) 1Khz,0.25V |
||||||||
OD |
ID |
H |
OD |
ID |
H |
Ae |
Lm |
AL(min) |
|||||
EK0603 |
6.0 |
3.0 |
3.2 |
6.5 |
2.5 |
3.8 |
0.037 |
1.41 |
13.0 |
||||
EK0903 |
9.0 |
5.0 |
3.2 |
9.5 |
4.5 |
3.8 |
0.050 |
2.20 |
11.5 |
||||
EK1003 |
10.0 |
7.0 |
3.2 |
10.5 |
6.5 |
3.8 |
0.037 |
2.67 |
7.0 |
||||
EK1210 |
12.0 |
8.7 |
10.0 |
12.6 |
8.1 |
10.6 |
0.129 |
3.25 |
20.0 |
||||
EK1405 |
14.0 |
9.0 |
4.5 |
14.5 |
8.5 |
5.1 |
0.088 |
3.61 |
12.0 |
||||
EK2108 |
21.3 |
13.5 |
8.0 |
22.1 |
12.8 |
9.0 |
0.243 |
5.46 |
22.0 |
||||
EK4304 |
43.0 |
35.0 |
4.0 |
43.6 |
34.4 |
4.6 |
0.125 |
12.25 |
5.0 |
||||
Two series of toroidal core
B series core commonly used as a replacement of EI and other toroidal transformers with lower magnetic loss requirement.
Material thickness: 0.30mm, 0.27mm, 0.23mm
M3-0.23mm
|
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Toroidal Core Custom Form |
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OD(MM) |
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ID(MM) |
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H(MM) |
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Specified Material |
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Performance Requirement |
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Other requirement |
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