What Files Are Needed for a Turnkey PCBA Quote?
A practical file checklist for a turnkey PCBA quote covering PCB fabrication, sourcing, assembly, testing, and delivery scope.
Quick answer
For a turnkey PCBA quote, send the files that define PCB fabrication, component sourcing, SMT/DIP assembly, testing, and delivery scope. The most useful package includes Gerber and drill files, a BOM with manufacturer part numbers, pick-and-place data, assembly drawings, PCB specifications, quantity, and any functional test or packaging requirements.
Core files for a turnkey PCBA quote
| File or information | What it tells the supplier | Why it matters |
|---|---|---|
| Gerber and drill files | PCB layers, copper, solder mask, silkscreen, drill data | Defines the PCB fabrication scope |
| BOM | Component part numbers, quantities, values, designators | Drives component sourcing and BOM risk review |
| Pick-and-place / CPL file | Component coordinates, side, and rotation | Helps prepare SMT machine programming |
| Assembly drawing | Polarity, connector orientation, mechanical notes | Reduces ambiguity before assembly |
| PCB specifications | Thickness, copper weight, finish, color, stack-up notes | Confirms fabrication requirements |
| Quantity and delivery needs | Prototype, pilot, or low-volume build quantity | Affects setup cost, purchasing, and planning |
| Test requirements | Functional test method, fixture, firmware, acceptance criteria | Defines the agreed inspection and testing scope |
If the project is a turnkey PCB assembly build, these files should be reviewed together. A board can look simple in Gerber data but still carry BOM sourcing risk, polarity ambiguity, or testing requirements that affect the quote.
Gerber, BOM, and placement data work together
Gerber files define the bare PCB. The BOM defines what must be purchased and mounted. Pick-and-place data tells the assembly team where each SMT component goes and how it should be rotated. When one of these files is missing or inconsistent, the quote may still start, but the supplier has to ask more questions before confirming price and production scope.
For overseas buyers comparing a China PCB assembly quote, complete files also make supplier responses easier to compare. You can see whether each supplier is quoting the same PCB specification, sourcing scope, assembly work, and test requirements.
What if files are incomplete?
Incomplete files can still be reviewed first. Send the Gerber, BOM, board photos, sample board information, or notes you already have, and the engineering review can identify what is missing before a firm quote is prepared.
The difference is quote accuracy. A preliminary quote based on partial data may change after final BOM, placement, drawing, or test information arrives. Complete data improves sourcing accuracy, reduces engineering back-and-forth, and helps avoid surprises before SMT assembly.
Optional details that improve quote accuracy
Include any preferred component brands, approved alternatives, no-substitute parts, firmware flashing needs, fixture information, conformal coating notes, packaging requirements, and shipping preferences if they apply.
For BOM-driven projects, link your quote request with a BOM sourcing review. The same part list that drives purchasing can also reveal obsolete, unavailable, or long-lead components before quotation is finalized.
FAQ
What files are needed for a turnkey PCBA quote?
A useful package includes Gerber and drill files, a BOM with manufacturer part numbers, pick-and-place data, assembly drawings, PCB specifications, quantity, and testing or packaging requirements. These files let the supplier review PCB fabrication, sourcing, assembly, testing, and delivery scope together.
Can Huitai review incomplete files first?
Yes. You can send the files you have, such as Gerber, a partial BOM, photos, or a sample board reference. The first review can identify missing data and open questions before a firm quote is confirmed.
Why is the BOM important for a PCBA quote?
The BOM controls component sourcing cost, availability, approved alternatives, and shortage risk. A clear BOM with manufacturer part numbers helps the quote reflect the real parts needed for production.
Is pick-and-place data required before assembly?
It is strongly recommended for SMT assembly because it defines component coordinates, side, and rotation. If it is missing, the supplier may need extra engineering clarification before machine programming and production.
Where should I send Gerber and BOM files?
You can send Gerber, BOM, drawings, and test requirements for engineering review before quotation.