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flat-wire rod inductor

High-current, low-loss metal powder core inductors

Primarily used in commercial PV inverters, this product's core function is DC-to-AC conversion.typically silicone-potted for rugged outdoor protection, are critical components in photovoltaic inverters for energy storage, filtering, and harmonic suppression.

  • Product Description

High-Efficiency CD-Type Amorphous Inductor for Advanced Power Systems

 

Our CD-Type Amorphous Inductors utilize premium amorphous alloy core technology designed for next-generation power electronics that demand maximum energy conversion efficiency and ultimate power density. Featuring a split-core (CD-type) architecture, these inductors offer exceptional magnetic properties that far surpass traditional silicon steel and ferrite cores.

 

Engineered to handle high transient currents while maintaining ultra-low core losses and near-silent operation, they are the ideal choice for high-power PFC circuits, renewable energy, and automotive-grade applications.

 

Key Features

  • Extremely Low Core Loss: Amorphous alloy significantly reduces hysteresis and eddy current losses. This yields minimized heat generation and higher power conversion efficiency—delivering typically 80–90% lower core loss compared to traditional silicon steel.

  • High Saturation Flux Density:  Amorphous material offers a high saturation magnetic flux density (Bs ≈ 1.2-1.56T), which is 3-5 times higher than ferrite cores (0.3-0.5T). Allows the inductor to handle large transient currents without saturation, providing excellent reliability

  • Superior Miniaturization Capability: Thanks to high permeability and high Bs, the exact same inductance value can be achieved in just 1/8 to 1/10 of the physical volume of traditional inductors, enabling ultra-compact, high-power-density designs.

  • Low Noise & Low Vibration: Utilizing amorphous alloys with an extremely low magnetostriction coefficient, this design virtually eliminates audible core "squealing" or humming. This is a critical advantage for EV, audio, and medical applications.

  • Excellent Temperature Stability: High Curie temperature (up to 500°C+) ensures stable performance from -55°C to 130°C. Suitable for high-temperature, high-power environments

  • Adjustable Air Gap Flexibility: The CD-type split-core design allows for precise air gap adjustments, enabling customizable effective permeability to meet your exact circuit and ripple current requirements.

 

DC-Dias
Electric Current (A) Inductance uH
0 137
30 137
60 133
90 128
120 121
150 112
180 102
210 88
240 76
270 66
300 56

 

 

Winding Specification

 

Winding Terminal Wire Specification Turns Remarks
N1 1-2 QZY-2/180 2*15 26TS Reference turns

 

 

Material

Item Name Specification
Enamelled Wire QZY-2/180   2*15
Magnetic Core NPF113068013-75uH 
Bobbin / Coil Former 187*121*109/ADC12
silicone rubber JD-605A/B
Solder / Solder Tin Sn99.3Cu0.7

 

 

Electrical Parameters

Inductance #1 550uH Min
Inductance #2 500uH Min
DC Resistance (DCR) 20 mΩ Max
Insulation Dielectric Voltage (Hi-pot) 1.8KVac 2mA-3S
Insulation Resistance (IR) 100MΩ Min(DC500V)

 

 

Target Applications

Our CD-Type Amorphous Inductors are engineered for high-performance, high-power filtering and power factor correction:

  • E-Mobility: EV onboard chargers (OBC) & DC-DC converters.

  • Renewable Energy: Photovoltaic (PV) inverters & grid-tied energy storage systems (ESS).

  • Next-Gen Computing: AI servers & 5G telecommunications base station power supplies.

  • Power Quality: High-power PFC (Power Factor Correction) circuits and industrial switching power supplies.

 

Why Partner With Us?
  • 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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