Low volume PCB assembly · Small batch PCBA
Low Volume PCB Assembly: 1 to 1,000 Boards, Production Process
Engineering builds, customer samples, pilot runs and bridge builds assembled on the same equipment and inspection standards as volume production. No minimum order quantity.
- Minimum order
- 1 pc
- Smallest passive
- 01005
- Inspection
- SPI·AOI·X-ray
- BOM & DFM review
- Free
What is low volume PCB assembly
Small batches, production rules.
Low volume PCB assembly covers runs of roughly 1 to 1,000 boards, for prototypes, pilot production, customer samples, bridge builds and niche products with modest annual volume. It uses the same placement, reflow and inspection processes as high-volume production, so test results predict production yield.
Small-batch assembly is not a relaxed version of production. A 5-piece lot runs on the same pick-and-place machines, paste, reflow profiles and AOI as a 5,000-piece run. Only the setup cost is spread over fewer boards.
Use cases
When teams order low volume assembly.
Engineering validation
Verify a new revision before committing to tooling and inventory.
Samples & certification
Units for customer evaluation, EMC and safety testing or field trials.
Pilot production
Stress-test supply chain, test procedures and yield before scale-up.
Bridge & niche builds
Medical, industrial and instrument products with volumes in the hundreds.
Pricing
No MOQ, no hidden minimums.
Orders start at 1 piece with no MOQ surcharge. The quote reflects actual setup, material and processing cost: a one-time stencil and a machine-programming setup, then per-board assembly. Per-unit cost falls as quantity rises. For 100–500 pieces it is typically well below prototype-quantity pricing.
- Stencil and programming NRE stated up front
- Turnkey, partial turnkey or consigned sourcing
- Component MOQs flagged when a reel would cost more than the build
Process
Same process as production.
- Laser-cut stencil and solder paste inspection
- Vision-aligned pick-and-place: 01005 passives, fine-pitch BGAs
- Profiled reflow for your alloy and thermal mass
- Through-hole and mixed technology as required
- AOI on every board; X-ray for hidden joints
- First-article inspection for every new design
- Functional test to your procedure on request
Why production-grade
Why low-volume assembly needs a production-grade process.
Small-batch assembly is not a relaxed version of production. Placement accuracy, reflow profile and inspection criteria must match production, otherwise test results from a 20-piece build cannot predict production yield. That is why we run small lots on the same lines and acceptance criteria as volume work.
Component sourcing
Component sourcing options.
| Model | Who sources | Best for |
|---|---|---|
| Full turnkey | AstroPCB | Prototypes, pilots, large BOMs |
| Partial turnkey | You supply key parts | Held stock or custom parts |
| Consigned | You supply all parts | Parts already on hand |
For turnkey low-volume orders we check BOM availability before quoting and flag parts with long lead times or minimum-order quantities that would distort small-batch economics.
Quality & documentation
Quality and documentation.
- First-article inspection on every new design
- AOI on every board; X-ray for hidden joints
- IPC-A-610 Class 2 by default, Class 3 on request
- Lot traceability and inspection records on request
Lead time
Low volume lead times.
| Scope | Typical lead time |
|---|---|
| Fabrication + assembly, 10–500 pcs | 10–15 business days from approval |
| Quick-turn, simple designs with stocked parts | 7–10 business days |
| Consigned with boards supplied | Shorter; assembly time only |
Scaling up
From pilot to production without re-qualification.
We keep your stencil, programs, BOM rules and process parameters, so revisions between batches are easy and the move to higher volume does not need re-qualification. Clear revision control on each order keeps changes visible.
Need the bare boards first? Start with a PCB prototype.
FAQ
Low volume PCB assembly questions.
What counts as low volume PCB assembly?
Typically runs of 1 to 1,000 units: prototypes, pilots, pre-series validation and niche products.
Is there a minimum order quantity?
No. Low volume assembly starts at 1 piece with no MOQ surcharge.
What are the setup costs?
A one-time stencil and machine-programming setup, stated on the quote. Per-unit cost then falls as quantity increases.
How long does low volume assembly take?
Usually 10–15 business days including fabrication; 7–10 days for simple quick-turn designs with stocked components.
Can I change the design between batches?
Yes. Each batch is a separate order; BOM and PCB revisions are accommodated with clear revision control.
Can I scale from low volume to mass production?
Yes. Files, programs and process parameters are retained, so scale-up needs no re-qualification.
Ready when your files are
Quote a low volume build from 1 piece.
Upload Gerber, ODB++ or IPC-2581 data. Every quote includes a written engineering DFM review, typically within one business day.