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Engineers and purchasing managers in the United States need magnetic components that **cut costs, boost efficiency, and meet strict compliance**. Our **coupled inductor design** service does exactly that—delivering tailor‑made, high‑frequency solutions within 14 days of order confirmation.
These pain points translate into **average 18 % higher BOM cost** and **30 % longer time‑to‑market** for U.S. OEMs.
| Parameter | Typical Range | Unit | Notes |
|---|---|---|---|
| Inductance (L1/L2) | 0.5‑100 | µH | Custom ratio up to 1:5 |
| Saturation Current (Is) | 1‑10 | A | Nanocrystalline core optional |
| DC Resistance (DCR) | 10‑200 | mΩ | Copper winding, Litz wire |
| Operating Frequency | 100‑800 | kHz | Suitable for power‑factor correction, LED drivers |
| Temperature Range | ‑40 ~ +125 | °C | RoHS‑compliant materials |
| Package Options | SMD, Lead‑frame, Custom PCB mount | – | Footprint down to 3 mm × 3 mm |
“Xinchangda’s coupled inductors cut our BOM cost by 38 % and reduced prototype time from 6 weeks to 3 days. Their ISO‑9001 audit reports gave us full confidence for FDA submission.”
— James Liu, Senior Procurement Manager, Global Medical Corp
All products are backed by the following certifications:
coupled-inductor inductor-selection-guide coupled-inductor-sepic electric-inductor
Standard prototypes are shipped within 3 days after design approval; full‑scale production starts in 14 days.
Yes. All our magnetic cores and winding materials are RoHS‑compliant, and we provide FCC Part 15 test reports on request.
Our 10 R&D engineers work with you from concept simulation to final layout, delivering a complete design package (schematic, 3D model, PCB footprint).

30 % T/T deposit, 70 % balance before shipment; L/C and PayPal are also accepted for small‑volume orders.
A dedicated technical account manager provides 24 / 7 email support, and we offer a 12‑month warranty on all inductors.
Limited‑time offer: Free engineering sample for orders placed before May 31 2026. Stock is limited to 500 units per design.
Or reach us instantly via WhatsApp | Email: grace01@xcdmagnetic.com
John Miller, Procurement Lead – EnergyTech USA
“The 30 % price reduction allowed us to meet aggressive cost targets without sacrificing performance. Delivery was on‑time, and the documentation was flawless.”
Laura Chen, Senior Engineer – AutoLED Solutions
“Xinchangda’s custom footprint saved us 4 mm² on the PCB, enabling a more compact LED driver. Their simulation data matched the final product within 2 %.”
Michael Patel, VP of Manufacturing – Industrial Power Inc.
“We received ISO‑9001 audit reports and FCC test certificates within 48 hours—critical for our compliance schedule.”
Emily Zhang, Senior Magnetics Engineer with 12 years of experience in high‑frequency power conversion. Former Lead Design Engineer at a Fortune 500 automotive supplier and current Technical Solutions Manager at Huizhou Xinchangda Electronic. Holds a Master’s in Electrical Engineering (MIT) and is a certified ISO 9001 auditor.
Contact Emily directly: emily.zhang@xcdmagnetic.com