A toroidal flat-wire PFC inductor uses flat copper wire wound on a toroidal core to improve efficiency and power density in high-power supplies. Key benefits over round-wire designs include lower losses, better thermal performance, and smaller size—ideal for EV chargers, solar inverters, and switching power supplies.
Flat-Wire Toroidal PFC Choke for Smart and Energy-Saving Appliances
With low losses, excellent thermal performance, and small footprint, plus the toroidal core's natural low leakage flux, the toroidal flat-wire inductor is ideal for high-performance PFC. Continuous improvements in materials, structure, and process are pushing power supplies toward better efficiency and higher power density.
Key Features
Loss Reduction & Heat Dissipation
Flat wire has larger surface area than round wire at same cross-section
Suppresses skin effect, lowers AC resistance and winding losses
Better heat dissipation: up to 20°C lower temperature rise
Higher Power Density
Higher fill factor (core window utilization)
Smaller inductor size at same current rating
Volume reduced by 1/3 to 1/2 vs. conventional designs
Optimized Parasitics
Single-layer vertical winding structure
Reduces interlayer parasitic capacitance
Higher self-resonant frequency, stable high-frequency performance
DC-Dias| Electric Current (A) | Inductance uH |
| 0 | 272 |
| 2 | 269 |
| 4 | 264 |
| 6 | 255 |
| 8 | 242 |
| 10 | 225 |
| 12 | 208 |
| 14 | 191 |
| 16 | 175 |
| 18 | 147 |
Winding Specification
| Winding | Terminal | Wire Specification | Turns | Remarks |
| N1 | S-F | QZY-2/180 1*3 | 42TS | Reference turns |
Material
| Item Name | Specification |
| Enamelled Wire | 2UEW-H 1*3 |
| Magnetic Core | NPH542216-60 |
| Bobbin / Coil Former | 30X35/T375HF/Black |
| Epoxy Adhesive | 116P-1 A/B |
| Solder / Solder Tin | Sn99.3Cu0.7 |
Electrical Parameters
| Inductance #1 | 270uH±15%(60KHz/1V) |
| Inductance #2 | 200uH Min(60KHz/1V/10A) |
| DC Resistance (DCR) | 17 mΩ Max |
| Insulation Dielectric Voltage (Hi-pot) | 2.0KVac 2mA-3S |
| Insulation Resistance (IR) | 100MΩ Min(DC500V) |
Target Applications
Power Conversion Systems:
Widely used in switching mode power supplies (SMPS), DC power modules, and energy conversion circuits requiring stable inductance and efficient current handling.
Electric Vehicle Power Electronics:
Applied in EV onboard chargers (OBC), automotive DC-DC converters, and other high-power vehicle charging and power management systems.
Industrial & Communication Infrastructure:
Suitable for industrial power supplies, telecom equipment, high-power base station systems, and server power architectures where compact design and high reliability are required.
Power Factor & Harmonic Control:
Ideal for PFC circuits, harmonic filtering applications, and industrial power conditioning systems to improve power quality and operational efficiency.
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.
The combination of a racetrack core and vertical flat-wire winding delivers minimal copper loss and exceptional high-frequency EMI filtering within a minimal space. It is purpose-built for demanding applications including EVs, server power supplies, and industrial automation.
View More
Metal powder core inductors are designed for high-current power applications requiring excellent energy storage capability and low power loss. Featuring high saturation characteristics and stable performance under DC bias conditions, they provide reliable solutions for power conversion, filtering, and energy management systems.
View More
Toroidal powder core inductors are designed for efficient power management and filtering in household appliances and consumer electronics. With excellent magnetic stability, low core loss, and strong current handling capability, they help improve energy efficiency and ensure reliable operation in various power supply systems.
View More
On-board block-type flat-wire power inductors constitute a class of high-performance power inductors engineered exclusively for automotive electronic systems. Their defining characteristics include the utilization of flat enameled copper wire for winding and a block-type magnetic core architecture, available in either assembled or molded configurations. These components rigorously comply with the AEC-Q200 automotive-grade certification standard. Consequently, they ensure reliable and highly efficient power conversion under demanding vehicular conditions, characterized by high current loads, elevated temperatures, and substantial mechanical vibration.
View More
A three-phase silicon steel reactor is a three-phase AC power device that utilizes silicon steel laminations as its core material. It plays a vital role in power systems by limiting currents, suppressing harmonics, and improving power quality.
View More
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.
View More
Combining the structural advantages of CD-type designs with amorphous material properties, this inductor delivers exceptionally high power density and minimal energy loss within a compact size. Its superior thermal stability and high-frequency performance significantly reduce heat dissipation and enhance system operating efficiency. Purpose-built for renewable energy and high-efficiency industrial power supplies, it enables lighter and more energy-efficient power solutions.
View More
The Low-Loss Toroidal Powder Core Inductor with a mounting base and thick lead-out wires is a typical high-current, high-power industrial-grade component. It is designed from the ground up to serve as a "heavy-duty workhorse" in high-power switching power supplies—capable of withstanding high-current surges while providing efficient filtering withDesigned with a terminal and toroidal powder core configuration, this product is ideal for high-current, high-power industrial applications and is engineered for easy installation in cabinet power supplies."out interfering with surrounding circuits.
View MoreSocial Link :
Copyright @ 2026 Anhui Hangyou Co., Ltd. All Rights Reserved.
Network Supported
leave a message
