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High Current Flat-wire Block Core Inductor

The flat-wire block inductor is a power inductor formed by winding flat rectangular conductors around or within a block-type molded magnetic core. Its key attributes—high current capacity, low loss, and efficient heat dissipation—make it well-suited for high-frequency, high-power electronic equipment.

  • Product Description

High-current  Flat-wire Block Core Inductor

 

Designed for high-power photovoltaic applications, this flat-wire block core inductor is widely used in commercial PV inverters and energy storage systems. It plays a key role in DC-to-AC power conversion by providing efficient energy storage, current filtering, and harmonic suppression. Featuring a high-current design and robust silicone potting protection, it delivers reliable performance in harsh outdoor environments. With excellent thermal stability and durability, it helps improve the efficiency and long-term reliability of solar power systems.

 

Key Features

Flat-wire winding for higher efficiency – Compared to round wire, flat wire offers a higher copper fill factor and lower DCR, reducing losses and improving efficiency.

Molded core for better stability – The one-piece metal-alloy powder core provides inherent magnetic shielding, stable inductance over high frequency and temperature, and high saturation current capability.

Superior thermal and high-frequency performance – The flat conductor maximizes heat dissipation area, while effectively minimizing skin and proximity effects, making it ideal for high-frequency applications with SiC and GaN semiconductors.

 

 

DC-Dias
Electric Current (A) Inductance uH
0 465
20 448
40 406
60 346
80 280
100 210
120 171
140 147
160 124
180 99

 

 

Winding Specification

 

Winding Terminal Wire Specification Turns Remarks
N1 1-2 QZY-2/180 1.8*9 48TS Reference turns

 

 

Material

Item Name Specification
Enamelled Wire QZY-2/180   1.8*9
Magnetic Core NPFRH924860-060
Base 76*95/T2.0
Epoxy glue 6065H
Insulating paper 120*60/T0.13/#410
Solder / Solder Tin Sn99.3Cu0.7

 

 

Electrical Parameters

Inductance #1 400uH Min(20KHz/1V )
Inductance #2

200uH Min(20KHz/1V/100A )

DC Resistance (DCR) 10 mΩ Max
Insulation Dielectric Voltage (Hi-pot) 2.0KVac 2mA-3S
Insulation Resistance (IR) 100MΩ Min(DC500V)

 

 

Target Applications

 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).

  • 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.

 

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