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For Purchasing Managers, Technical Directors & Operations Leaders who demand reliable, CE‑certified magnetic components at a competitive price, the ei30 transformer delivers 30 % lower total cost of ownership while meeting strict quality standards.
Get Free Quote in 24 hResult: Higher unit cost, missed launch windows, and potential penalties in regulated industries.
See how we solve these issues →| Parameter | Value | Unit |
|---|---|---|
| Power Rating | 30 | VA |
| Primary Voltage | 120 / 230 | V |
| Secondary Voltage | 12 / 24 | V |
| Frequency Range | 50‑60 / 400‑500 | Hz |
| Efficiency | >95 | % |
| Temperature Rise | ≤40 | °C |
| Compliance | CE, RoHS, FCC, ISO 9001 | - |
frequency-transformer High-Frequency-Transformer-EE-Type power-electronics-transformer transformer-and-inductance
“Switching to Xinchangda’s ei30 transformer cut our component cost by 28 % and shortened lead time from 8 weeks to 12 days.”
“The CE‑certified units passed our internal audit on first inspection – zero re‑work.”
Certificates: CE, FCC, RoHS, ISO 9001, VDE, CB, GS, SAA, HACCP/GMP.
The standard MOQ is 500 pieces. For OEM projects we can lower it to 200 pieces with a 5 % surcharge.
Yes. Our R&D team can adjust primary/secondary turns, core material, and enclosure size to meet any voltage requirement.
30 % T/T deposit upon order confirmation, 70 % balance before shipment. We also accept L/C for larger volumes.
Air freight: 3‑5 business days after payment. Sea freight: 15‑20 days port‑to‑port, plus customs clearance.
Yes. Our technical hotline operates 24 h/7 d and we offer a 12‑month warranty with on‑site troubleshooting if needed.
Limited‑time offer: Free engineering sample + 10 % discount on the first 1,000 units. Stock is limited – act now!

Or call us directly: +86 131‑2826‑415 (We answer English calls 24/7)
Linda K. – Senior Purchasing Manager, BrightTech Electronics
“The ei30 transformer’s low ESR reduced our board temperature by 12 °C, saving us on cooling costs.”
Tom R. – Operations Lead, GreenPower Solutions
“Fast 10‑day delivery let us meet a critical project deadline for a solar‑inverter rollout.”
Emily S. – QA Engineer, MedEquip USA
“All certifications were in order, making our FDA filing smoother and faster.”
David Chen, Ph.D. – Senior Magnetic‑Component Engineer, Huizhou Xinchangda Electronic
With 18 years in transformer design, David has led R&D projects for audio, medical, and renewable‑energy sectors across North America and Europe. He holds a Ph.D. in Electrical Engineering (MIT) and is a certified ISO 9001 auditor.
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