The Small Order Problem in Electronics Manufacturing
If you have ever tried to get a 10-board prototype assembled by a professional EMS provider, you know the frustration. Many manufacturers have minimum order quantities (MOQs) of 100, 500, or even 1,000 boards. Others technically accept small orders but quote astronomical per-unit prices that make your prototype more expensive than a full production run — effectively discouraging you from placing the order.
This is a structural problem in the electronics manufacturing industry. Large EMS providers optimise their operations for high-volume throughput. Setting up an SMT line — loading feeders, programming the placement machine, printing a stencil — takes the same effort whether you are running 5 boards or 5,000. The economics simply do not work for most high-volume shops to service small customers profitably.
But here is the insight that many procurement managers miss: the best production partner for your 50,000-unit run is often the same partner who built your 5-board prototype.
Why Prototype-to-Production Continuity Matters
The conventional approach — use a cheap prototype shop for development, then transfer to a "real" manufacturer for production — creates significant risks:
- Process transfer risk: Different equipment, different solder profiles, different inspection criteria. Your board that worked perfectly at the prototype shop may fail at the production facility
- Lost learning: The prototype shop learned your design's quirks and sensitivities. That knowledge is lost when you move to a new manufacturer
- Time cost: Manufacturing transfer typically adds 4-8 weeks to your schedule — an eternity for a startup racing to market
- Re-qualification: For medical or automotive products, changing manufacturers may require full re-qualification
The ideal scenario: your prototype and production boards come from the same facility, built by the same technicians, on the same equipment, under the same quality system.
What to Look for in a Small-Order-Friendly EMS
1. Stated Minimum Order Quantity
Ask directly: "What is your minimum order quantity for prototype assembly?" If the answer is higher than 25 boards, the provider is optimised for volume and may not give your small order adequate attention. At TOS Lanka, our minimum is 5 boards — because we understand that today's 5-board prototype is tomorrow's 5,000-board production order.
2. Production-Grade Prototype Quality
Some prototype shops cut corners — using manual placement instead of machine placement, skipping AOI inspection, or using consumer-grade components. Your prototype should be built using the exact same processes that will be used in production:
- Machine SMT placement — not hand-placed components
- Reflow soldering with proper thermal profiling
- AOI or manual inspection against IPC-A-610 standards
- In-circuit testing if test points are available
3. Free DFM Review
A manufacturer that offers a free Design for Manufacturing (DFM) review on prototype orders is demonstrating investment in your success. This review catches design issues before they become manufacturing problems — saving you revision cycles and money.
4. Transparent Pricing
Look for clear, itemised quotes that separate NRE (stencils, programming), component costs, and assembly costs. Avoid providers who quote a single "per board" price without breakdown — you cannot optimise what you cannot see.
5. Scalability
The ultimate test: can this manufacturer scale from your prototype to 1,000 boards to 50,000 boards without changing facilities? If yes, you have found a partner, not just a vendor.
TOS Lanka's Approach to Small Orders
TOS Lanka was built on the principle that every project deserves Japanese-quality manufacturing — regardless of size. Our approach:
- 5-board minimum: No order is too small
- Same SMT lines: Your 5-board prototype runs on the same Panasonic equipment as our 10,000-board production orders
- Free DFM review: Every new project receives engineering review at no charge
- 48-hour quotation: Fast response because startups cannot wait weeks for a quote
- Triple ISO certified: ISO 9001 + 14001 + 45001 quality — no shortcuts regardless of volume
- Turnkey and consigned options: We source components globally or work with your supplied materials
- Seamless scale-up: When your product succeeds, production ramps within the same facility
Industries We Serve at Any Volume
- IoT and wearables: Smart devices, sensor modules, connected hardware
- Medical devices: Patient monitoring, diagnostic equipment (NMRA approved)
- Industrial electronics: Control systems, automation equipment, energy monitoring
- Automotive: Sensor assemblies, control units, wire harnesses
- Consumer electronics: Smart home devices, audio equipment, lighting controls
How to Get Started
Getting your first prototype assembled at TOS Lanka is straightforward:
- Send your files: Email your Gerber files, BOM, and assembly drawings to dexter@toslanka.com
- Receive DFM feedback: Our engineers review your design and provide manufacturing recommendations
- Approve the quote: We deliver a detailed quotation within 48 hours
- Receive your boards: Production-grade prototype assemblies delivered to your door
No startup is too small. No prototype is too simple. Contact TOS Lanka to start your project today.