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.
Automotive-Grade Flat-Coil Power Inductor
The automotive flat-wire power inductor is a high-performance power inductor specifically designed for automotive electronics, these flat-wire metal powder core power inductors offer high power density and reliability. The combination of flat-wire winding and metal powder core enables high current handling, high efficiency, small footprint, and stable performance at elevated temperatures.
Key Features
DC-Dias| Electric Current (A) | Inductance uH |
| 0 | 213 |
| 5 | 210 |
| 10 | 204 |
| 15 | 194 |
| 20 | 183 |
| 25 | 170 |
| 30 | 157 |
| 35 | 145 |
| 40 | 132 |
| 45 | 121 |
Winding Specification
| Winding | Terminal | Wire Specification | Turns | Remarks |
| N1 | 1-2 | QZY-2/180 0.9*4 | 44TS | Reference turns |
Material
| Item Name | Specification |
| Enamelled Wire | QZY-2/180 0.9*4 |
| Magnetic Core | NPF-UU37-40uH |
| Bobbin / Coil Former | UU37/FR530 |
| silicone rubber | JD-605A/B |
| Solder / Solder Tin | Sn99.3Cu0.7 |
Electrical Parameters
| Inductance #1 | 210uH ±15% |
| Inductance #2 | 100uH Min@45A |
| DC Resistance (Rdc) | 20 mΩ Max |
| Insulation Dielectric Voltage (Hi-pot) | 1.8KVac 2mA-3S |
| Insulation Resistance (IR) | 100MΩ Min(DC500V) |
Target Applications
Automotive-Grade Flat-Coil Power Inductor
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.
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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