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Designed for corporate purchasing managers, technical directors, and operations teams who demand reliable magnetic components without the premium price tag.
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When sourcing the ei 57 x 35 transformer, most purchasing managers encounter the same three frustrations:
According to a 2025 supply‑chain survey, 42% of B2B buyers postponed procurement because of unpredictable delivery schedules.
Our factory combines 14 years of OEM/ODM expertise with a fully automated production line to deliver:
| Parameter | Value | Unit |
|---|---|---|
| Core Size | 57 mm × 35 mm | mm |
| Power Rating | 150 W | W |
| Operating Frequency | 20‑200 kHz | kHz |
| Insulation Class | Class B | - |
| Temperature Rise | ≤ 30 °C | °C |
| Compliance | CE, FCC, RoHS, ISO 9001 | - |
Our clients have successfully integrated the ei 57 x 35 transformer into:
ei-28-transformer ei-57-transformer transformer-oem low-frequency-transformer-design
Our standard MOQ is 1,000 pieces. For bulk projects we can accommodate 10,000+ units with tiered discounts.
Yes. Our OEM/ODM team can adjust winding turns, select aluminum or steel casings, and certify new voltage ratings up to 600 V.
30 % T/T deposit upon order confirmation, 70 % before shipment. We also accept L/C at sight for larger orders.
We partner with DHL, UPS, and FedEx. Standard sea freight arrives in 25‑30 days; air freight is available within 7 days.
Free technical consultation for 12 months, replacement of any defective unit within warranty, and a dedicated account manager.
Order before May 31, 2026 and enjoy free sample shipping plus a money‑back guarantee if the transformer fails to meet your specifications.
Start Your Order NowOr call us directly: +86 131 2825 6415 (We speak English)
Emily R., Senior Engineer – AcoustiCo.
“The ei 57 × 35 transformer exceeded our noise‑floor expectations. Installation was straightforward, and the OEM redesign saved us $12k on the whole project.”
Michael T., Procurement Lead – GreenEnergy Solutions
“We needed a reliable component for our solar inverter line. Xinchangda delivered on time, and the 30‑day lead time kept our production schedule intact.”
Sarah L., Operations Manager – MedTech USA
“The certification package (CE, FCC, ISO 9001) removed the need for additional testing. That alone saved us weeks of paperwork.”
David Liu, Ph.D.
Senior Magnetics Engineer with 18 years of experience in transformer design for audio, medical, and renewable‑energy markets. Lead R&D at Huizhou Xinchangda Electronic, author of 12 industry whitepapers, and regular speaker at the International Magnetics Conference.
Contact: grace01@xcdmagnetic.com | Phone: +86 131 2825 6415
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What Our Customers Say
All units are shipped with full certification packages (CE, FCC, RoHS, ISO 9001) and a 12‑month warranty.
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