AC-DC and DC-DC Power Modules from China OEM Suppliers
2 resources tagged with "Power Modules"
Power modules cover the encapsulated AC-DC (5W–250W, universal input) and isolated DC-DC converter blocks that Chinese OEMs supply for embedding into larger products. They are judged on efficiency, isolation voltage, ripple, and certification — IEC 62368-1 and UL for AC-DC, and topology (buck, boost, flyback) for DC-DC. The sourcing risk is a module that meets nameplate specs at room temperature but derates badly under load or at elevated ambient, which only thermal testing exposes.
A power module is a pre-built, often potted converter you drop onto a board instead of designing discrete power stages. The common pitfall is trusting datasheet efficiency and isolation figures without testing at full load and temperature, where cheaper modules show ripple or thermal shutdown.
Products (2)
FAQ
What certifications should AC-DC power modules carry?
Look for IEC 62368-1 (the current safety standard replacing 60950) plus UL listing for North America and CE for Europe. Verify the test report covers the exact model and input range you're buying, not a sister part.
Can I get custom OEM power modules from Chinese factories?
Yes — most module makers offer custom output voltages, connectors, and isolation specs, though custom work usually carries an MOQ of a few thousand units and tooling or NRE fees. For low volumes, stick to catalogue parts and verify samples under full load.
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