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For Purchasing Managers & Technical Directors who are fed up with overpriced, unreliable inductors, our high‑speed, OEM‑ready coupled inductors deliver up to 37% lower total cost of ownership while meeting IEC, CE, and RoHS standards.
| Parameter | Typical Value | Unit |
|---|---|---|
| Primary Inductance (L1) | 10‑150 | µH |
| Secondary Inductance (L2) | 8‑120 | µH |
| Coupling Coefficient (k) | 0.85‑0.98 | — |
| Rated Current | 0.5‑10 | A |
| Operating Temp. | -40 ~ +125 | °C |
| Core Material | Ferrite (3C90), Powdered Iron | — |
• Medical Imaging Power Supplies: 22% reduction in EMI, ISO 13485 compliance. Case: XYZ MedTech, USA – 3‑month time‑to‑market gain.
• EV Charger Modules: 15% higher power density, 2‑week lead‑time vs. 6‑weeks standard. Case: GreenCharge Inc., Canada.
• Industrial IoT Gateways: 30% lower copper usage, stable inductance over –40 °C to +85 °C. Case: SmartFactory Solutions, Germany.
“Xinchangda’s coupled inductors cut our prototype cost by 28% and delivered on schedule. Their engineering support saved us two weeks of design time.” – James Lee, Senior Procurement Manager, AeroTech Corp., USA
“The CE and FCC certifications were already in place, which let us ship to Europe without extra testing.” – Maria González, Operations Director, MedPower Ltd., Spain
Certificates: CE, FCC, RoHS, ISO 9001, ISO 13485, VDE, CB, GS, SAA – all audited by third‑party labs.
A coupled inductor consists of two windings sharing a magnetic core. When current flows in the primary, a magnetic field is generated that induces a proportional voltage in the secondary, allowing energy transfer with minimal loss. At high frequencies, ferrite cores keep core loss below 2 % and maintain a stable coupling coefficient (k ≥ 0.85).
Yes. Our R&D team can tailor L1, L2, and k values from 0.80 to 0.99, select core materials, and adjust wire gauge to meet your exact performance and size constraints.
Standard production: 2 weeks after artwork approval and payment. For urgent projects, we offer 48‑hour sample service and 5‑day express batch for orders > 5 k units.
All units ship with a full test report (inductance, DC resistance, Q‑factor, temperature drift) and certificates (CE, FCC, RoHS). Custom compliance (UL, IEC) can be added on request.
We accept T/T, L/C, and PayPal for orders under $10 k. Shipping via DHL, UPS, or sea freight (FOB Shenzhen) with real‑time tracking. Export‑controlled items are handled with all required documentation.
Only 100 units of our latest high‑k coupled inductors are available for a free engineering sample. Order within 48 hours and receive a money‑back guarantee if performance does not meet the spec sheet.
Or call us directly: +86 131 2825 6415 (WeChat & WhatsApp)
Emily Chen, Procurement Lead, SolarTech USA
“The sample arrived in 2 days, and the inductance matched the datasheet within 0.3 %. We saved $12 k on our 2024 production run.”
Mark Davis, Senior Engineer, AutoDrive Inc.
“Xinchangda’s engineering support helped us redesign the power stage, reducing board size by 20 % while keeping EMI below 40 dB.”
Laura Martínez, Operations Manager, MedEquip Spain
“All certifications were already in place – no extra testing needed. Delivery was on time and the product performed flawlessly in our Class‑II medical device.”
Dr. Alex Wu – Senior Magnetics Engineer, Xinchangda Electronic
With 18 years of experience in transformer and inductor design for aerospace, medical, and renewable‑energy markets, Dr. Wu leads the R&D team that delivered over 2 million coupled inductors to 20+ countries. He holds a Ph.D. in Electromagnetics (Tsinghua University) and is a frequent speaker at IEC and IEEE conferences.
Contact: grace01@xinchangdadz.com | Phone: +86 131 2825 6415
