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The ring-shaped 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.
High-Efficiency Toroidal Powder Core Inductor for Advanced Power Systems
Designed 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."
Key Features
1. High Magnetic Saturation Density (Strong Anti-Saturation Capability:This ensures that the inductor can maintain a relatively high inductance value even under high DC bias conditions.
2. Low Core Loss (High Efficiency):This results in less heat generation and improves the overall energy efficiency of the circuit.
3. Excellent Magnetic Shielding (Low Electromagnetic Interference):This means it causes very little interference to surrounding sensitive circuits and also reduces its own susceptibility to external electromagnetic interference.
4. Compact Structure and High Power Density:it can achieve large inductance values and high current handling capabilities within a compact physical volume.
5. Stable Temperature Rise:Due to its low core losses and a reasonable surface-area-to-volume ratio, it exhibits good heat dissipation performance. It can operate stably and reliably even in high ambient temperature environments.
DC-Dias| Electric Current (A) | Inductance uH |
| 0 | 1711 |
| 5 | 1621 |
| 10 | 1483 |
| 15 | 1299 |
| 20 | 1101 |
| 25 | 913 |
| 30 | 753 |
| 35 | 622 |
| 40 | 520 |
| 45 | 441 |
| 50 | 361 |
Winding Specification
| Winding | Terminal | Wire Specification | Turns | Remarks |
| N1 | S-F | QZY-2/180 Φ2.5*1P | 70TS | Reference turns |
Material
| Item Name | Specification |
| Enamelled Wire | QZY-2/180 φ2.5 |
| Magnetic Core | NPF250060H43 |
| Bobbin / Coil Former | 76*76/T3.5/FR-4 |
| Insulating Varnish | ET-90C |
| Solder / Solder Tin | Sn99.3Cu0.7 |
Electrical Parameters
| Inductance #1 | 1500uH Min |
| Inductance #2 | 900uH±10% |
| DC Resistance (DCR) | 40 mΩ Max |
| Insulation Dielectric Voltage (Hi-pot) | 1.8KVac 2mA-3S |
| Insulation Resistance (IR) | 100MΩ Min(DC500V) |
Target Applications
Our The ring-shaped powder core inductor are engineered for high-performance, high-power filtering and power factor correction:
Switching Mode Power Supplies (SMPS) - Core Application
E-Mobility: EV onboard chargers (OBC) & DC-DC converters.
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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