Amorphous Toroidal Core Amorphous Gap Magnetic Core For Choke Coils
Sep 25, 2025
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Amorphous Gap Magnetic Core Product Description
Fe-based amorphous alloy 1K101 with good frequency properties, stable inductance with various DC bias current, low loss, wide permeability range from 120 to 1200.
Amorphous Gap Magnetic Core Feature
- High saturation induction – downsizing core
- With air gap – Excellent anti-bias current ability
- Low core loss – low temperature rise of components
- Good stability – working temperature -55 ~ 150℃
Amorphous Toroidal Core Application
2.Output filter or inductor in high frequency large power supplies
3.Car audio choke coils
4.DC/DC transformer filters
Amorphous gap core specifications
|
Core dimension |
Finished Core Dimension |
Characteristics Parameters |
||||||||
|
OD(mm) |
OD (mm) |
ID (mm) |
HT (mm) |
Le (mm) |
Ae (cm2) |
Wa (cm2) |
Vol (cm3) |
Wa x Ae (cm4) |
µ |
A1 (nH/N2) |
|
15x10x5 |
18 |
8 |
7 |
3.93 |
0.11 |
0.50 |
0.43 |
0.06 |
100 |
34.4 |
|
18x11x10 |
21 |
9 |
13 |
4.55 |
0.31 |
0.64 |
1.41 |
0.2 |
100 |
83 |
|
25x15x10 |
30 |
11 |
13 |
6.28 |
0.43 |
0.95 |
2.70 |
0.41 |
100 |
86 |
|
26x16x10 |
29 |
13 |
13 |
6.59 |
0.43 |
1.33 |
2.83 |
0.57 |
100 |
47.2 |
|
30x20x15 |
34 |
17 |
19 |
7.85 |
0.65 |
2.27 |
5.10 |
1.48 |
100 |
103 |
|
40x25x10 |
45 |
21 |
13 |
10.2 |
0.64 |
3.46 |
6.53 |
2.21 |
100 |
79.3 |
|
40x25x15 |
45 |
21 |
19 |
10.21 |
0.97 |
3.46 |
9.90 |
3.36 |
100 |
119 |
|
40x25x20 |
45 |
21 |
25 |
10.36 |
2.06 |
3.46 |
21.34 |
7.13 |
100 |
159 |
|
46x27x20 |
51 |
23 |
25 |
11.46 |
3.26 |
4.15 |
37.36 |
13.53 |
100 |
358 |
|
50x32x15 |
55 |
28 |
19 |
12.87 |
1.16 |
6.15 |
14.93 |
7.13 |
100 |
113 |
|
50x32x20 |
55 |
28 |
25 |
12.87 |
1.55 |
6.15 |
19.95 |
9.53 |
100 |
151 |
|
64x40x15 |
69 |
36 |
19 |
15.7 |
1.29 |
10.17 |
20.25 |
13.12 |
100 |
103 |
|
70x40x25 |
75 |
36 |
30 |
17.27 |
3.23 |
10.17 |
55.78 |
32.85 |
100 |
235 |
|
80x50x25 |
86 |
46 |
30 |
20.41 |
3.23 |
16.61 |
65.92 |
51.36 |
100 |
199 |
|
80x50x40 |
85 |
46 |
45 |
20.41 |
5.16 |
16.61 |
105.32 |
89.47 |
100 |
318 |
|
100x60x20 |
105 |
55 |
25 |
25.12 |
3.44 |
23.75 |
86.41 |
84.69 |
100 |
172 |
|
100x60x40 |
105 |
55 |
45 |
25.12 |
6.88 |
23.75 |
172.83 |
163.4 |
100 |
344 |
Cores with other specifications can be provided concerning to customer demand.
MATERIAL PROPERTIES
|
Saturate induction / Bs (T) |
1.56 |
Magnetostriction / λs |
27x10⁻⁶ |
|
Curie temperature (℃) |
400 |
Density ρ (g/cm³) |
7.18 |
|
Crystallization (℃) |
515 |
Resistivity δ (μΩ.cm) |
130 |
|
Hardness / Hv |
960 |
Thickness (μm) |
28~35 |
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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;
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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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