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Power‑efficient, low‑loss magnetic cores engineered for audio, medical, renewable‑energy, and heavy‑industry applications. Designed for you.
Get Free Quote in 24 h| Parameter | Typical Range | Unit | Compliance |
|---|---|---|---|
| Power Rating | 10 – 5000 | W | IEC 61869‑2 |
| Efficiency | ≥ 96% | – | UL 60950‑1 |
| Core Material | Ferrite, Powdered Iron, Nanocrystalline | – | RoHS, REACH |
| Operating Temp. | ‑40 °C – +85 °C | °C | IEC 60068‑2‑1 |
| Lead Time (Prototype) | 7 days | – | N/A |
LLC-Transformers dual-output-transformer high-frequency-step-down-transformer transformers-for-dc-dc-converters
Certificates: CE, FCC, UL, ISO 9001, RoHS, VDE, GS, CB, IPPC – all up‑to‑date and available for audit.
Prototype units are ready within 7 days after design sign‑off; bulk production ships in 3 weeks to U.S. ports (FOB Shanghai). Express air freight is available within 5 days.
Yes. Our R&D team holds UL, IEC, and FDA certifications. We provide full test reports and CE/CSA marking upon request.
Absolutely. Our 10 R&D engineers can develop custom core geometries, multi‑stage windings, and specialized shielding to meet any application.
Standard terms are 30 % T/T upfront, 70 % against copy of BL. For qualified buyers we accept L/C at sight or net‑30 days after delivery.
Yes. A dedicated application engineer is assigned to each account, providing free design validation, troubleshooting, and a 12‑month warranty.
Limited Offer: Free 2‑piece sample kit (up to 100 W) for orders placed before May 31 2026. No‑risk, no‑obligation.

Or reach us instantly via WhatsApp | Email: grace01@xinchangdadz.com
John M., Procurement Manager – SoundWave Audio (USA)
"Xinchangda delivered a custom 250 W LLC transformer in 9 days. The unit passed our in‑house stress test with a 0.01 % loss margin—saving us $12 k per batch."
Lisa T., Senior Engineer – MedTech Solutions (USA)
"The FDA‑approved transformer met all Class II requirements on first submission. Their documentation and quick response saved us 3 weeks of project delay."
Mark R., Operations Director – SolarEdge Systems (USA)
"Switching to their nanocrystalline core reduced inverter size by 12% and boosted efficiency by 4.5%. The ROI is evident within the first year of operation."
Emily Chen, Ph.D. – Senior Magnetic‑Design Engineer, Huizhou Xinchangda Electronic
With 12 years of experience in high‑frequency transformer development for aerospace, medical, and renewable‑energy sectors, Emily leads the R&D team that holds more than 30 patents on LLC core optimization. She regularly contributes to IEEE Transactions on Magnetics and has been a speaker at the International Power Electronics Conference (2024).
Contact: emily.chen@xcdmagnetic.com | Phone: +86 131 2825 6415