1K107 Nanocrystalline C Core for Soft Magnet Applications
Oct 24, 2025
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Nanocrystalline C-type magnetic cores are high-performance soft magnetic components made of iron-based nanocrystalline alloys. Their core features a "nanocrystalline + amorphous" dual-phase structure, which combines the characteristics of high magnetic permeability, low loss, resistance to high and low temperatures, and can also help in the miniaturization of devices. They are mainly used in high-frequency switching power supplies, new energy inverters, and high-fidelity audio transformers, which can not only improve power supply efficiency but also reduce signal distortion.
Nanocrystalline Core Application
High-frequency switch-mode power supplies: Due to its low loss and high magnetic permeability at high frequencies, it can be used as transformer cores and output filter or inductor cores in high-frequency large power supplies, helping to improve the efficiency and stability of power supplies and reduce their volume and weight.
New energy inverters: Such as solar inverters and wind power inverters. In the power conversion process of new energy, it can effectively convert and transmit magnetic energy, ensuring the efficient operation of the inverter and improving the utilization rate of new energy.
High-fidelity audio transformers: Its low core loss and high magnetic permeability characteristics can ensure the high-fidelity transmission of audio signals, reduce signal distortion, and improve the sound quality of audio equipment.
Nanocrystalline C Core Comparisons with Amorphous C core
Magnetic performance: The magnetic permeability of nanocrystalline C-core is significantly higher than that of amorphous C-core, and the coercivity is lower, so it has lower excitation loss during the magnetization and demagnetization processes. Although the saturation magnetic induction intensity of amorphous C-core is slightly higher, nanocrystalline C-core can meet the needs of most medium and high-power scenarios.
High-frequency characteristics: Nanocrystalline C-core can adapt to higher frequency working environments and has a wider coverage of the frequency range. In high-frequency working conditions, its energy loss is lower than that of amorphous C-core, which can better meet the requirements of high-frequency power supplies, inverters and other equipment.
Temperature stability: The Curie temperature of nanocrystalline C-core is much higher than that of amorphous C-core. In an environment with large temperature fluctuations, the magnetic performance of nanocrystalline C-core decays more slowly, while the key performance of amorphous C-core, such as magnetic permeability, decreases more significantly at higher temperatures.
Cost and process: The material preparation process of amorphous C-core is more mature, and the overall cost is lower than that of nanocrystalline C-core. However, the toughness of amorphous strips is slightly poor, and the processing difficulty is slightly higher when processing into complex shapes; nanocrystalline strips have better formability and stronger process flexibility.
Nanocrystalline C Core specification
| Core Build | Window Width | Core Height | Core Width | Core Length | |||||
| a(mm) | ± | b(mm) | c(mm) | d(mm) | ± | e(mm) | ± | f(mm) | ± |
| 9 | 0.5 | 10 | 32.8 | 15 | 0.5 | 28 | 1 | 50.8 | 1.25 |
| 10 | 0.5 | 11 | 33 | 20 | 0.5 | 31 | 1 | 53 | 2 |
| 11 | 0.5 | 13 | 30 | 20 | 0.5 | 35 | 1 | 52 | 2 |
| 11 | 0.5 | 13 | 40 | 20 | 0.5 | 35 | 1 | 62 | 2 |
| 11 | 0.5 | 13 | 40 | 25 | 0.5 | 35 | 1 | 62 | 2 |
| 11 | 0.8 | 13 | 50 | 25 | 0.5 | 35 | 1 | 72 | 2 |
| 11 | 0.8 | 13 | 50 | 30 | 0.5 | 35 | 1 | 72 | 2 |
| 13 | 0.8 | 15 | 56 | 25 | 0.5 | 41 | 1 | 82 | 2 |
| 13 | 0.8 | 15 | 56 | 30 | 0.5 | 41 | 1 | 82 | 2 |
| 13 | 0.8 | 15 | 56 | 35 | 0.5 | 41 | 1 | 82 | 2 |
| 16 | 0.8 | 20 | 70 | 25 | 0.5 | 52 | 1 | 102 | 3 |
| 16 | 1 | 20 | 70 | 30 | 0.5 | 52 | 1 | 102 | 3 |
| 16 | 1 | 20 | 70 | 40 | 0.5 | 52 | 1 | 102 | 3 |
| 16 | 1 | 20 | 70 | 45 | 1 | 52 | 1 | 102 | 3 |
| 19 | 1 | 25 | 83 | 35 | 1 | 63 | 1 | 121 | 3 |
| 19 | 1 | 25 | 83 | 40 | 1 | 63 | 1 | 121 | 3 |
| 19 | 1 | 25 | 83 | 50 | 1 | 63 | 1 | 121 | 3 |
| 19 | 1 | 25 | 90 | 60 | 1 | 63 | 1 | 128 | 3 |
| 22 | 1 | 35 | 85 | 50 | 1 | 79 | 1 | 129 | 4 |
| 22 | 1 | 35 | 85 | 65 | 1 | 79 | 1 | 129 | 4 |
| 25 | 1 | 40 | 85 | 55 | 1 | 90 | 1 | 135 | 4 |
| 25 | 1 | 40 | 85 | 70 | 1 | 90 | 1 | 135 | 4 |
| 25 | 1 | 40 | 85 | 85 | 1.5 | 90 | 1 | 135 | 4 |
| 30 | 1 | 40 | 85 | 85 | 1.5 | 100 | 1 | 155 | 4 |
| 33 | 1 | 40 | 105 | 85 | 1.5 | 106 | 1 | 171 | 5 |
| Note: Additional sizes can be customized to meet specific customer requirements. | |||||||||
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GNEE EC
Founded in 2008 and located in Anyang in China, Gnee Electric is a high-tech enterprise specializing in researching and manufacturing iron core products.
The company currently occupies over 20,000 square meters and employs more than 200 people, including over 80 professionals. After more than 18 years of development, we have built our own magnetic material production base and independently develope, produce, and sell various kinds of iron cores. The common types include silicon steel cores, motor cores, transformer cores, toroidal iron cores, special-shaped cores, custom cores, and others. Our cores are widely applied in different sectors including transformers, motors, mutual inductors, voltage stabilizers, welding machines, magnetic amplifiers, and instrumentation, providing diverse core solutions to global customers.
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GNEE EC was founded in 2008, which is a National High-tech Enterprise & Famous Brand Enterprise in China, developing into a professional manufacturer and supplier of high-quality iron cores.
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Over 18 years of success in the iron core industry;
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Over 200 employees;
The R&D team has more than 80 experienced engineers and the production team has more than 100 skilled staffs;
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Over 1000 customers in domestic and overseas markets;
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With 18 Years of industry experience, we focus on the research, development, and manufacturing of high-quality iron cores for electricity, industrial control, new energy, and automotive markets