Amorphous Distribute Choke Toroidal Core
Sep 23, 2025
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Amorphous Distribute Choke Toroidal Core Product Description
The Amorphous Distributed Choke Ring Core is a magnetic component with a special structure and excellent performance. It uses iron-based amorphous alloy as the main material, featuring high saturation magnetic induction intensity which enables effective magnetic energy storage. Meanwhile, it possesses low coercive force, low core loss, as well as good frequency and temperature characteristics.
Amorphous Distributed Choke Core Feature
- High saturation magnetic induction (1.56T),
- low loss at high frequency, wide frequency range.
- Used for smooth filter inductor, choke and energy storage inductor of high frequency switched mode power supply.
- Differential Mode Amorphous Core/Inductor
- The core with a gap has constant inductance, large D.C. magnetic bias resistance and low loss.
- Applied for inductor cores for various power supply.
Amorphous ring Core specifications
| Core Dimension(mm) | Finished Core(mm) | le | Ae | Mass | AL* | Application | ||||
| OD | ID | HT | OD | ID | HT | (mm) | (mm2) | (g) | (uH/N2) | |
| 7 | 3 | 3 | 7 | 3 | 3 | 15.7 | 4.8 | 0.5 | 0.12-1.0 | Comunication/coating |
| 7 | 3 | 5 | 7 | 3 | 5 | 15.7 | 8 | 0.9 | 0.12-1.0 | Comunication/coating |
| 15 | 10 | 5 | 17 | 8 | 6.8 | 39.3 | 10 | 2.8 | 0.12-1.0 | |
| 18 | 11 | 8 | 19.8 | 9.2 | 9.6 | 45.6 | 22.4 | 7.2 | 0.12-1.0 | Audio |
| 18 | 11 | 10 | 19.8 | 9.2 | 11.7 | 45.6 | 28 | 8.9 | 0.12-1.0 | Audio |
| 20 | 12 | 10 | 22.5 | 10.5 | 12.5 | 50.3 | 32 | 11.3 | 0.12-1.0 | Audio |
| 25 | 16 | 10 | 28 | 13.8 | 12.5 | 64.4 | 36 | 16.3 | 0.12-1.0 | PFC/Output Ckoke |
| 25 | 20 | 15 | 28 | 17.7 | 17.8 | 70.7 | 30 | 14.9 | 0.12-1.0 | PFC/Output Ckoke |
| 30 | 20 | 10 | 33 | 18 | 13.5 | 78.5 | 40 | 22 | 0.12-1.0 | PFC/Output Ckoke |
| 30 | 20 | 15 | 33 | 18 | 17.8 | 78.5 | 60 | 33.1 | 0.12-1.0 | PFC/Output Ckoke |
| 32 | 20 | 10 | 34.2 | 18 | 12.9 | 81.7 | 48 | 27.5 | 0.12-1.0 | PFC/Output Ckoke |
| 40 | 25 | 15 | 43 | 22 | 18.7 | 102.1 | 90 | 64.5 | 0.12-1.0 | PFC/Output Ckoke |
| 40 | 25 | 20 | 43 | 22 | 23.7 | 102.1 | 120 | 86 | 0.12-1.0 | PFC/Output Ckoke |
| 60 | 35 | 25 | 65.5 | 30.3 | 30.5 | 149.2 | 250 | 261.8 | 0.12-1.0 | PFC/Output Ckoke |
| 64 | 40 | 20 | 67.4 | 37 | 23.2 | 163.4 | 192 | 220.1 | 0.12-1.0 | PFC/Output Ckoke |
*AL value can be difinded according to customer's requirement from 0.12uH to 1.20uH.
Cores with other specifications can be provided concerning to customer's demand.
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Manufacturing Process
1. Raw Material Sourcing
2. Slitting
3. Punching
4. Laminating
5. Core Forming
6. testing
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;
National High-tech Enterprise & Famous Brand Enterprises in China;
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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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Annual turnover up to 35 million dollor per year;
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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