Consignment PCB assembly (also called customer-supplied or 'bring your own parts' assembly) gives you full control over your component supply chain while leveraging Kingdta's assembly expertise and quality systems. This model is ideal for customers who have existing component inventory, have negotiated pricing with specific distributors, or are working with allocation-constrained parts during component shortages. We also offer partial turnkey assembly where you supply some components and we source the rest.
Full or Partial Consignment
Supply all components (full consignment) or just the critical/constrained ones (partial turnkey). We handle the rest.
IQC Incoming Inspection
All customer-supplied components undergo incoming quality control (IQC) inspection before assembly.
Excess Component Return
Unused components carefully counted, packaged, and returned with your finished boards.
Shortage Management
We flag any component shortages or quality issues before assembly begins, not after.
Technical Specifications
| Service Models | Full consignment, partial turnkey, or full turnkey |
| Component Packaging | Tape & reel, cut tape, tray, tube, loose (with prior approval) |
| IQC Inspection | Visual inspection, count verification, datasheet cross-check |
| Minimum Order | 1 piece (prototype); no minimum for production |
| Component Storage | ESD-safe, humidity-controlled storage for customer components |
| Excess Return | Counted and returned with completed boards |
| Shortage Handling | Flagged before production; customer notified within 24h |
| Lead Time | 5–7 days after component receipt (prototype); 10–15 days (production) |
| Shipping | Components shipped to our facility; completed boards shipped to you |
Our Process
BOM Review & Kitting List
We review your BOM and provide a kitting list specifying exact quantities, packaging requirements, and any special handling notes for each component.
Component Shipment to Kingdta
You ship components to our facility. We recommend using ESD-safe packaging and including a packing list matching the kitting list.
IQC Incoming Inspection
All received components are inspected: count verification, visual inspection, and cross-check against datasheet specifications. Any discrepancies reported within 24 hours.
Kitting & Production
Components kitted per board and loaded onto production equipment. Assembly proceeds per standard SMT/DIP process.
AOI, X-Ray & Testing
Full inspection and testing per standard process. No shortcuts because components are customer-supplied.
Excess Return & Shipment
Excess components counted, packaged in original or equivalent packaging, and returned with completed boards.
Industry Applications
We've placed 14 orders with Kingdta over 2 years — from 5-board prototypes to 2,000-unit production runs. Consistent quality, transparent pricing, and they always flag potential issues before they become problems.
Head of Hardware Engineering · Autonomous Systems Company · Amsterdam, Netherlands
Frequently Asked Questions
Consignment Assembly for an ITAR-Controlled Radar Signal Processor
A US defense electronics contractor manufacturing a radar signal processor board — using consignment assembly for all ICs (ITAR-controlled components that cannot leave customer custody) while Kingdta sources all passive components and connectors.
The Problem
The customer needed to maintain full chain-of-custody control over their ITAR-controlled ICs (FPGAs, DSPs, and custom ASICs) while outsourcing the assembly labor and passive component sourcing. Their previous supplier had mixed up component lots from different customers, creating a compliance audit finding.
Key Challenges
- ITAR-controlled ICs — must maintain documented chain of custody from customer to assembled board
- 12 different IC packages including 0.4mm pitch BGAs and 0.5mm pitch QFNs
- Passive component sourcing (847 line items) must use authorized distributors only
- IPC Class 3 workmanship and MIL-PRF-31032 documentation requirements
- Lot segregation — customer's components must never be co-mingled with other customers' inventory
Our Solution
We established a dedicated storage area for the customer's ITAR components with access restricted to the assigned production team. A chain-of-custody log records every component movement from receipt to board assembly, with operator ID, timestamp, and quantity. Customer components are stored in a locked ESD-safe cabinet with a dual-key access procedure. All passive components are sourced exclusively from Digi-Key, Mouser, and Arrow with full distributor certificates of conformance. Assembly is performed in a dedicated work area with no other customer's materials present. MIL-PRF-31032 documentation is generated for every production lot.
Results & Outcomes
"Finding a consignment assembly supplier who understands ITAR chain-of-custody requirements and has the documented procedures to prove it is genuinely difficult. Kingdta's lot segregation procedures and chain-of-custody documentation satisfied our DCSA auditor without any findings. That's a level of compliance rigor we haven't found elsewhere."
Program Manager, Defense Electronics Contractor — San Diego, CA, USA