High Frequency Nanocrystalline Core Common Mode Choke for EMC
Sep 22, 2025
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Nanocrystalline Core Common Mode Choke for EMC Product Description
The EMC standard of frequency ranging from 150 KHz to 30MHz on restraining the conducted CM EMI are becoming more serious in the application. CM inductors and filter capacitors are used to restrain the CM EMI.
High volume and impedance reduction from150 KHz to 30MHz due to the operating frequency limitation can cause core mulfunction. In this case, GNEE developed advanced Nano-crystalline common mode choke cores with higher performance to solve the problem of EMC common mode choke cores.
Nanocrystalline Core Common Mode Choke for EMC Feature
- High initial permeability: 5~20 times higher than ferrite cores
- High saturate induction density: 2-3 times higher than ferrite cores; not easy to be saturated in high current fields.
- Excellent temperature stability: stable working ablity at temperatures from -55 ℃ to 130 ℃ for a long period of time and work at higher Curie temperature; able to maintain stable properties even in unstable working temperature.
- Good frequency flexibility - better noise control ability in different frequencies.
- Higher anti-unbalanced-current: special made Nano-crystalline EMC Common Mode Choke Cores guarantee 104 permeability when resisting 80A/m unbalanced current bias field.
Nanocrystalline EMC Common Mode Choke Core Application
Nanocrystalline EMC Common Mode Choke Core Parameter
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Gnee provides premium iron cores to the world. Our cores can be selected in a wide range of materials, shapes, applications, manufacturing techniques, etc., to meet customers' diverse demands. Explore our wide product range now~
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.
30+
Types of Products
18k+
Happy Clients
Why Choose GNEE EC?
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.
18+
Over 18 years of success in the iron core industry;
National High-tech Enterprise & Famous Brand Enterprises in China;
200+
Over 200 employees;
The R&D team has more than 80 experienced engineers and the production team has more than 100 skilled staffs;
35+
Annual turnover up to 35 million dollor per year;
Owns many sets of highly automatic winding, annealing, and assembling machines;
1,000+
Over 1000 customers in domestic and overseas markets;
core Products are exported to more than 70 countries in the world;
Gnee Iron Core Factory Overview
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Edison Zhang
CEO
Kelly Zhang
General Manager
Alex Cao
Sales Manager
Industries Served
Automobile Industry
New Energy
Transformer Applications
Our Mission
Strive To Create world-class Iron core brand
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