PCBA Sourcing from China: Assembly and QC
3 resources tagged with "Pcba"
PCBA (printed circuit board assembly) is where a bare board, the BOM, and SMT/THT placement come together — and where most sourcing risk lives. Chinese contract manufacturers can run turnkey jobs from DC inverter air-conditioner control boards to dense multilayer designs, but mains-voltage boards demand creepage/clearance checks and hipot testing that a generic SMT shop may skip. Confirm whether the factory does component procurement (turnkey) or expects you to consign parts.
When you source PCBA, you are paying for placement accuracy, reflow profiling, and electrical test, not just board population. The common pitfall is unverified BOM substitutions — insist on an approved-vendor list and a first-article inspection before mass production.
Guides (3)
FAQ
What MOQ applies to PCBA orders in China?
Prototype and small-batch SMT runs accept 5-50 pieces; turnkey production with component sourcing usually wants a few hundred to a thousand units so reel minimums and stencil costs amortize.
What testing should a PCBA factory provide?
Expect 100% AOI after reflow, plus functional test (FCT) and, for mains-voltage boards, hipot and ground-continuity checks. Ask for ICT or flying-probe on complex boards and a documented test yield.
How long does turnkey PCBA take?
With parts in stock, SMT assembly runs 5-10 working days; long-lead components (MCUs, power ICs) can push lead time to 6-12 weeks. Lock the BOM early and check stock before quoting.
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