Nanocrystalline common-mode chokes are high-performance electromagnetic interference (EMI) suppression devices that utilize nanocrystalline soft magnetic materials as the core. By providing high impedance across a wide frequency range, they effectively absorb and attenuate common-mode noise, ensuring reliable electromagnetic compatibility (EMC) for your electronic systems. With superior saturation flux density, excellent temperature stability, and compact size, they are the ideal choice for high-power, high-reliability applications such as electric vehicles, photovoltaic inverters, and industrial drives.
High-inductance Nanocrystalline Three-phase Common-mode Choke
Nanocrystalline common-mode chokes are widely used in applications requiring high power density, superior reliability, and extreme operating conditions.
Key Features
Wideband (kHz–MHz) high-impedance noise suppression
Excellent anti-saturation under high DC bias
Stable performance from -40°C to +130°C
Low core loss for improved efficiency
Compact size with reduced DCR
Z-f |
Frequency (KHz) |
Impedance ( KΩ) |
| 1 | 0.32 |
| 100 | 10.8 |
| 200 | 14.7 |
| 300 | 17.2 |
| 400 | 18.8 |
| 500 | 19.6 |
| 600 | 19.4 |
| 700 | 18.4 |
| 800 | 17.1 |
| 1000 | 14.1 |
| 2000 | 6.6 |
| 3000 | 3.6 |
| 4000 | 3.1 |
| 5000 | 2.2 |
Winding Specification
| Winding | Terminal | Wire Specification | Turns | Remarks |
| N1 | 1--2 | QZY-2/180 Φ2.4*1P | 7TS | Reference turns |
| N2 | 3--4 | QZY-2/180 Φ2.4*1P | 7TS | Reference turns |
| N3 | 5--6 | QZY-2/180 Φ2.4*1P | 7TS | Reference turns |
| N4 | 7--8 | QZY-2/180 Φ2.4*1P | 7TS | Reference turns |
Material
| Item Name | Specification |
| Enamelled Wire | QZY-2/180 Φ2.4*1P |
| Magnetic Core | T40*25*15/1K107 |
| Bobbin / Coil Former | T40*25*15/PBT/黑色 |
| epoxy adhesive | E500 |
| Solder / Solder Tin | Sn99.3Cu0.7 |
Electrical Parameters
| Inductance | 3mH Min (1KHz/1V) |
| DC Resistance (DCR) | 2.5 mΩ Max |
| Insulation Dielectric Voltage (Hi-pot) | 1.8KVac 2mA-3S |
| Insulation Resistance (IR) | 100MΩ Min(DC500V) |
Target Applications
Nanocrystalline common-mode chokes are widely adopted across key industries:
Proven Industry Expertise: With over 20 years of industrial experience and a solid foundation established in 2013, we operate five major core industrial lines across multiple specialized manufacturing bases to ensure top-tier product scale and stability.
Global Quality Certifications: Our facilities strictly adhere to international automotive and industrial standards, backed by a complete set of major credentials including IATF16949, ISO9001, ISO14001, ISO45001, and ISO50001.
Strong R&D & Technical Innovation: Driven by dedicated research teams and specialized new-design laboratories, we possess extensive patent portfolios and advanced testing capabilities to provide highly reliable, customized magnetic solutions.
Smart & Scalable Manufacturing: We leverage advanced ERP and MES-managed smart manufacturing systems to optimize production capacity, securing a highly dependable supply chain for international clients across the EU, US, and globally.
FAQ
Q1: What are the main advantages of an amorphous core inductor?
A1: Compared to traditional silicon steel, amorphous cores cut energy losses by 80% to 90%, meaning much less heat generation. They also handle higher currents while being only a fraction of the size of standard inductors.
Q2: What is the benefit of the CD-type split-core design?
A2: The CD-type split-core design allows us to easily adjust the air gap. This flexibility means we can precisely customize the electrical performance to match your exact circuit and ripple current needs.
Q3: Will these inductors cause audible buzzing or noise?
A3: No. Our amorphous alloy material eliminates high-frequency core "squealing" or humming. This near-silent operation makes them ideal for noise-sensitive applications like electric vehicles (EVs) and audio systems.
Q4: Can I request customized specifications for my project?
A4: Yes, we provide full custom design services. We can adjust the inductance, current ratings, wire specs, and physical dimensions to ensure the component fits your specific power system requirements.
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