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For Purchasing Managers, Technical Directors & Operations Leaders who need reliable, high‑performance transformers without the usual price‑quality trade‑off.
Most US‑based buyers face the same three frustrations:
According to a 2025 industry survey, 62% of procurement teams cite “unreliable transformer performance” as a top blocker for new product launches.
Huizhou Xinchangda Electronic delivers a turn‑key solution that combines OEM/ODM design flexibility, ISO‑9001 quality assurance, and high‑speed delivery from a 5,000 m² factory.
| Parameter | Value | Unit |
|---|---|---|
| Primary Voltage | 110‑240 | V |
| Secondary Voltage | 12‑48 | V |
| Power Rating | 500‑1500 | W |
| Efficiency | >96 | % |
| Operating Temp. | -40 ~ +85 | °C |
| Certifications | CE, RoHS, ISO 9001, UL | - |
Our chopper transformers are deployed in:
Case Study: A leading US medical device OEM cut transformer‑related warranty claims from 4.3% to 1.1% after switching to Xinchangda’s custom‑designed chopper transformer (see PDF for full data).
Our clients include Fortune‑500 manufacturers and fast‑growing tech startups.
“Switching to Xinchangda’s chopper transformer saved us $120k annually and eliminated 98% of EMI‑related failures.” – John Miller, Procurement Director, MedTech USA
All products comply with CE, FCC, UL, RoHS, and ISO 9001 standards. Certificates are attached in the downloadable PDF.
The PDF provides full electrical parameters, mechanical drawings, thermal performance curves, compliance certificates, and a step‑by‑step OEM/ODM customization guide.
Yes. Our 10 R&D engineers can adjust primary/secondary turns, core material, and shielding to meet your exact spec. Minimum order for custom designs is 5,000 units.

We accept L/C at sight, T/T 30 days, or PayPal for samples. For large orders, we can negotiate Net 60 after credit approval.
Standard air freight is 5‑7 business days; express courier (DHL/UPS) can deliver within 48 hours to major ports.
Yes. Our after‑sales team offers 24/7 email support, on‑site troubleshooting (if required), and a 12‑month warranty on all transformers.
Limited‑time offer: Free engineering sample for the first 20 US orders + money‑back guarantee if performance doesn’t meet the spec.
“The chopper transformer arrived in 4 days, fully tested, and reduced our inverter’s harmonic distortion by 13%. The PDF made integration painless.”
“Pricing was 30% lower than our previous supplier, and the quality certifications saved us weeks of compliance testing.”
“The custom winding service let us meet a unique 7.2 V requirement without redesigning our PCB. Excellent engineering support.”
Alex Wei, Senior Application Engineer – 12 years of experience designing magnetic components for medical, renewable‑energy, and industrial markets. Holds a Master’s in Electrical Engineering (MIT) and is a certified ISO 9001 auditor. Alex leads the technical documentation team that produced the “Chopper Transformer PDF” and works directly with US purchasing teams to ensure compliance and rapid delivery.
Contact Alex: grace01@xinchangdadz.com | Phone: +86 131 2826 415