Turnkey PCB Assembly
PCB fabrication, component sourcing and assembly鈥攚ith the scope agreed before the build.
Turnkey PCB assembly combines bare-board fabrication, component procurement and assembly under an agreed release package. Full turnkey, partial turnkey and consigned builds differ in who supplies materials鈥攏ot in the need for clear revisions, approved substitutions and test instructions.
Agree each material owner
For a mixed customer/supplier kit, the component supply responsibility record helps assign purchasing, substitution and shortage actions.
Full turnkey, partial turnkey or consigned?
Still deciding who should buy and supply each item? Compare turnkey and consigned responsibilities, then record the owners of shortages, alternate approval and excess material. For quotation inclusions, use the assembly cost breakdown before comparing offers.
Choose the supply model around your actual constraints. Customer-owned programmed devices, allocation-sensitive parts or approved inventory may justify a mixed supply arrangement. State responsibility for the bare PCB separately from responsibility for the components.
| Supply model | 吃瓜tv scope to quote | What you provide |
|---|---|---|
| Full turnkey | Bare PCB fabrication, agreed component procurement and assembly. | Released fabrication and assembly files, BOM, approvals and test requirements. |
| Partial turnkey | Specified boards / parts plus assembly; each material owner is identified. | Named consigned items, quantities, packaging, arrival dates and receiving instructions. |
| Consigned assembly | Assembly and agreed inspection of customer-supplied materials. | Agreed bare boards and component kit, shortage allowance and handling requirements. |
BOM review is a purchasing decision, not a part-name search
Use an exact manufacturer and orderable part number. A matching package does not establish electrical equivalence. Approved alternates need review for footprint, voltage, temperature, tolerance, timing and firmware effects where relevant. Specify whether no substitution is permitted or named alternatives may be used. Use the component-alternative approval checklist to record the proposed part, review evidence, approval owner and affected release before purchase.
| Not in stock | Ask for available dates, approved alternatives or a split-build option |
|---|---|
| Pack-size mismatch | Separate required quantity from minimum purchase and excess inventory |
| Customer-supplied part | Identify ownership, incoming quantity, packaging and handling instructions |
| Deviation | Record the affected part, approval and build revision before purchasing |
A part description is not a purchase instruction
Illustrative BOM review: a row containing only 鈥�10 k惟 resistor, quantity 4鈥� does not identify the approved part, package, tolerance or reference designators. Use a released manufacturer part number or an explicitly controlled specification, show fitted/DNP positions, and name who approves alternatives. Availability of a substitute is not design approval. The assembly BOM guide explains the fields to check before sourcing.
Compare the complete quotation
A low assembly line item does not make two quotations equivalent. Compare the same PCB specification, fitted BOM, quantity, inspection scope and shipment terms. Ask which costs recur and which apply once per release or setup.
| Non-recurring | Stencil, programming preparation and agreed fixtures |
|---|---|
| Recurring | Bare boards, components, assembly and agreed tests |
| Conditional | Special inspection, coating, rework or product configuration |
| Commercial | Freight, tax, component excess and quotation validity |
Send one consistent turnkey PCB quote package
Start with quantity, delivery location and target date. Attach the current BOM, Gerber/drill or agreed fabrication data, pick-and-place file and assembly drawings. Include PCB stackup / finish requirements, DNP positions, customer-supplied parts and programming or test instructions. Mark preliminary items clearly.
Send the current revision, quantity and the requirements that matter to your build. If something is preliminary, identify it. Exact price, schedule and acceptance scope are confirmed through the project review.
Download the editable CSV worksheet 路 Opens in Excel or another spreadsheet editor. No sign-in required.
Review quality and supplier-evidence requirements; check the assembly capability review. Equipment photographs illustrate the process; they do not replace a job-specific acceptance record.
Get a quoteTurnkey PCBA project examples
Browse the supplied 吃瓜tv project photographs by application. Open an image for a closer view, then send your own design files for a comparable build. Product labels do not establish a qualification, a test result or a customer endorsement.
Industrial control & communication
Power & energy electronics
RF, connected & portable products
Choose a sourcing responsibility model
Optional planning aid. You can request a file-based quote directly without completing this tool.
Choose a sourcing responsibility model
The planner needs JavaScript. The process tables on this page remain available. Send the listed parameters through Contact for engineering review.
Keep sourcing and engineering changes connected
An approved substitute must reach the build record. An assembly-file change after procurement may leave obsolete material or require new preparation. Use one engineering change and cut-in record and agree how a revised BOM affects already purchased parts, completed assemblies and the next release.
| Traceability request | Define which lot, supplier or serial records the order requires |
|---|---|
| First order | Approve the BOM and unresolved purchasing decisions |
| Repeat order | Check lifecycle / availability changes and the current revision |
| Closeout | Confirm treatment of unused or customer-owned material |
Turnkey purchasing can be one work package in a longer electronic contract manufacturing relationship. Agree excess stock, release quantities and the authority to change approved parts.
Define the evidence you need with the order
Supplier confidence comes from an agreed acceptance plan and reviewable records. Specify the applicable standard, revision and class with your engineering team; photographs and a general certificate do not establish that an individual assembly has passed.
| Review point | Agree before production | Requested evidence / delivery |
|---|---|---|
| Purchase release | Exact manufacturer part numbers, approved alternates and allowed source restrictions. | BOM revision and approved deviation list; traceability depth confirmed in the quote. |
| Build release | Polarity, DNP positions, placement data, drawings and any first-article hold point. | Released document list and approval of open engineering questions. |
| Inspection and testing | Visual / AOI coverage, hidden-joint X-ray needs, programming and functional-test limits. | Required inspection records and test format; fixtures, firmware and sampling are scoped separately. |
| Shipment | Serialization, ESD packaging, product configuration and unused material disposition. | Agreed release documents, identification and material closeout. |
AOI and X-ray do not replace a specified functional test. For audit documentation, use the quality assurance review; for process photographs, see assembly equipment. Confirm the validity and scope of any required certificate with the quotation.
Turnkey PCB assembly questions
What is a turnkey PCB?
In this service context, turnkey PCB refers to a manufactured and assembled board supplied under one agreed scope. The design owner still provides the design and approves engineering decisions; enclosure integration and product certification are not automatically included.
What determines turnkey PCB assembly cost and lead time?
Board construction, BOM availability, minimum purchase quantities, setup, placement complexity, inspection and test preparation all matter. Fabrication and sourcing may overlap, but assembly depends on a complete released kit. Request separate PCB, component, setup, assembly and test line items; a fixed lead time needs file and material review.
Can you build a first batch before a repeat order?
Specify the first-batch quantity and any approval hold point. Use prototype assembly for bring-up and iteration; use low-volume assembly for a defined recurring batch. Turnkey describes procurement responsibility, not the production quantity.
Does turnkey include PCB fabrication?
Full turnkey normally combines fabrication, procurement and assembly. Confirm the quoted scope; partial turnkey can use customer-supplied boards or selected components.
Can I prohibit substitutions?
Yes: state that requirement in the BOM / purchasing instructions. It may affect availability, price and the schedule. Named alternates still need a controlled approval policy.
Are enclosure assembly and certification included?
Do not assume they are. Box build, system testing and product compliance require their own requirements and quotation scope.
Can the website confirm live component stock?
This page does not connect to live distributor inventory. Send the BOM for procurement review and an exact quotation.
Continue with the part of the build you need
PCB Assembly service overview 路 Discuss your files with 吃瓜tv