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Data point: A 2025 survey of 150 US manufacturers showed 37 % cited transformer‑related failures as a top cause of production delays.
See how we solve these issues →| Parameter | Specification |
|---|---|
| Primary Voltage | 120 VAC / 230 VAC |
| Secondary Voltage | 12 V DC (adjustable ±5 %) |
| Power Rating | 5 W – 150 W (customizable) |
| Operating Frequency | 50 Hz / 60 Hz |
| Insulation Class | Class B (130 °C) |
| Dimensions | Ø 50 mm × 30 mm (standard) |
| Weight | 120 g – 1.5 kg (depends on rating) |
| Certifications | CE, FCC, RoHS, ISO 9001, VDE, GS |
toroidal-transformer-12-0-12 Toroidal-Transformer toroidal-transformer-design toroidal-transformer-120v-12v
Yes. Our R&D team can adjust the secondary winding to meet ±2 % tolerance or any specification you require. Minimum MOQ for custom tolerance is 5,000 pcs.
Standard terms are T/T 30 % deposit, 70 % before shipment. For trusted partners we accept L/C at sight or net‑30 days after delivery.
Absolutely. We offer DDP, FOB, and CIF options. Shipping time from our Guangdong factory to Los Angeles is 5‑7 business days via air freight.
Every unit undergoes a 24‑hour high‑temperature soak, a 3‑phase load test, and an EMC screening. Test reports are provided on request.
Yes. Our 24/7 technical hotline (+86 131 2825 6415) and email support guarantee response within 4 hours for critical issues.
Stock is limited to 2,000 units per model. Act now to secure priority production slots.
Request Free SampleOr call us directly: +86 131 2825 6415 (WhatsApp available)

Emily Chen, Procurement Lead – GreenTech USA
“The 12V toroidal transformer arrived ahead of schedule, fully compliant with RoHS. Our solar inverter project stayed under budget by 8 %.”
David Patel, Senior Engineer – AudioPro Labs
“Noise level dropped from 45 dB to 18 dB after switching to Xinchangda’s toroidal design. The result was crystal‑clear sound without extra filtering.”
Linda Morales, Operations Manager – MedEquip Corp.
“We needed a CE‑certified 12 V supply for a new patient monitor. Xinchangda delivered a fully documented batch within 5 days – a true competitive advantage.”
Trusted By Global Leaders
Compliance & Certifications: CE, FCC, RoHS, ISO 9001, VDE, GS, CB, SAA, HACCP/GMP, IPPC.