Electronics Contract Manufacturing: Models, Costs and Choosing a Partner
Engagement models, what NRE and unit pricing really cover, MOQs by process, and a vetting checklist for choosing an electronics contract manufacturer.
August 3, 20162 min read
Written by Konstantin Dolgan, Ph.D., NPDP
Founder & CEO, Product Development Engineer
Published August 3, 2016Updated August 18, 2026
Electronics contract manufacturing means outsourcing production of your product to a factory that builds it under your brand. The label covers everything from a machine shop cutting parts to your drawings, to an EMS partner who sources components, assembles boards, tests, packs and ships to your fulfilment centre. What you pay, how fast you launch and how much control you keep all depend on which model you choose.
The three engagement models
Model | You provide | Factory provides | Best when |
|---|---|---|---|
Build to print | Complete drawings, BOM, specs | Production only | Design is frozen and validated |
Build to spec | Requirements and target cost | DFM, process design, some engineering | Design needs manufacturing input |
Full turnkey | Market need and target cost | Design, sourcing, build, test, logistics | You have no in-house engineering or supply chain |
What contract manufacturing actually costs
Cost element | Typical range | Notes |
|---|---|---|
NRE / engineering | $5k-$60k | DFM review, process design, test development |
Tooling | $4k-$180k | Depends on process and cavitation |
Test fixtures | $3k-$25k | Per station; needed for any electronics |
First article + pilot run | $5k-$30k | 50-500 units, often at 2-4x unit cost |
Unit price | BOM x 1.15-1.4 + assembly | Assembly at $12-$45/hr burdened depending on region |
Minimum order quantities by process
- CNC machining and sheet metal - MOQ 1-50. No tooling, higher unit cost, ideal below 2,000 units/yr.
- Injection molding - MOQ typically 1,000-5,000 per run once tooling exists; soft tools lower this to a few hundred.
- PCBA - MOQ 25-100 boards; component reels and MOQs on ICs usually set the real floor.
- Cast, extruded or die-cast metal - MOQ 2,000+ and 8-14 week tooling lead times.
- Textiles and soft goods - MOQ 300-1,000 per colourway, driven by fabric minimums.
How to vet a contract manufacturer
- Ask for a customer in your product category and volume band - not their largest logo.
- Confirm the quality system that matches your market: ISO 9001 baseline, ISO 13485 for medical, IATF 16949 for automotive, AS9100 for aerospace.
- Audit the actual line that will build your product, not the showroom cell.
- Get the quote broken into materials, labour, overhead, tooling and NRE - a lump price cannot be negotiated.
- Check engineering change control: how are ECOs priced, and how long does a change take to reach the line?
- Confirm who owns the tooling and where it physically lives. Get it in the contract.
- Ask about second-source strategy for single-sourced components before you commit.
Contracts: the clauses that matter
- IP ownership - designs, tooling, fixtures and test software should be yours on payment.
- Exit terms - can you take tools to another factory, and at what notice?
- Yield and scrap responsibility - who pays for material lost to process defects.
- Price validity and material escalation - how often unit prices are re-opened.
- Liability and recall - caps, insurance and defect definitions.
- Capacity commitment - guaranteed monthly slots so you are not bumped by a bigger customer.
Frequently asked questions
What is contract manufacturing?
Contract manufacturing is an arrangement where a company hires an outside factory to produce its product. The brand owns the design and the product; the contract manufacturer owns the equipment, labour and process capability.
What is the difference between contract manufacturing and OEM?
A contract manufacturer builds to your design and your brand. An OEM designs and sells a product that another company rebrands. Full turnkey contract manufacturing sits between the two because the factory contributes design work while you still own the product.
How long does it take to go from RFQ to first production run?
Plan 12-20 weeks for a plastic-and-electronics product: 2-4 weeks quoting and DFM, 6-10 weeks tooling, 2-3 weeks first article and pilot, then mass production. Machined or sheet-metal products can compress to 4-6 weeks because there is no hard tooling.
Do I need a US contract manufacturer or an offshore one?
Domestic manufacturing wins on lead time, IP control, travel cost and low-to-mid volumes. Offshore wins on unit cost above roughly 10,000 units per year, when the design is stable and the landed-cost gap survives freight, duty and inventory carrying cost.
Related reading: our manufacturing services, the total manufacturing cost formula and design for manufacturing principles.
Frequently asked questions
How to vet a contract manufacturer?
Ask for a customer in your product category and volume band - not their largest logo.. Confirm the quality system that matches your market: ISO 9001 baseline, ISO 13485 for medical, IATF 16949 for automotive, AS9100 for aerospace.. Audit the actual line that will build your product, not the showroom cell.. Get the quote broken into materials, labour, overhead, tooling and NRE - a lump price cannot be negotiated.. Check engineering change control: how are ECOs priced, and how long does a change take to reach the line?. Confirm who owns the tooling and where it physically lives. Get it in the contract.. Ask about second-source strategy for single-sourced components before you commit.
What is contract manufacturing?
Contract manufacturing is an arrangement where a company hires an outside factory to produce its product. The brand owns the design and the product; the contract manufacturer owns the equipment, labour and process capability.
What is the difference between contract manufacturing and OEM?
A contract manufacturer builds to your design and your brand. An OEM designs and sells a product that another company rebrands. Full turnkey contract manufacturing sits between the two because the factory contributes design work while you still own the product.
How long does it take to go from RFQ to first production run?
Plan 12-20 weeks for a plastic-and-electronics product: 2-4 weeks quoting and DFM, 6-10 weeks tooling, 2-3 weeks first article and pilot, then mass production. Machined or sheet-metal products can compress to 4-6 weeks because there is no hard tooling.
Do I need a US contract manufacturer or an offshore one?
Domestic manufacturing wins on lead time, IP control, travel cost and low-to-mid volumes. Offshore wins on unit cost above roughly 10,000 units per year, when the design is stable and the landed-cost gap survives freight, duty and inventory carrying cost. Related reading: our manufacturing services , the total manufacturing cost formula and design for manufacturing principles .
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