Standard Reference
IPC/WHMA-A-620 explained for cable and wire harness release work
IPC/WHMA-A-620 defines acceptability for cable and wire harness assemblies and shapes how teams prepare documentation, workmanship criteria, and inspection expectations.
Who uses it
- Harness manufacturers and contract manufacturers
- OEM engineering teams that need manufacturing handoff packages
- Quality and inspection teams reviewing assembled harnesses
Key requirements
- Define workmanship expectations clearly enough for production and inspection
- Specify materials, terminations, and assembly details consistently
- Support inspection and acceptance with complete release information
What decisions it changes
- What needs to be in the release packet for manufacturing
- How connector, splice, and termination details are documented
- How engineering communicates accept/reject expectations to production
Common mistakes
- Assuming assembly quality can be fixed downstream without better design documentation
- Leaving termination details implicit instead of explicit
- Treating BOM release as separate from workmanship expectations
Next Job
Use the standard inside the working workflow
The goal is not just understanding the standard. It is using it to make a better connector, wire, and release decision.
See the release workflowRelated Next Steps
MIL-Spec Part Decoder
Decode connector and contact part numbers before they hit the BOM.
Connector Pinout Library
Confirm cavity assignments and printable connector references.
Related Comparison
See where the workflow breaks in manual tools and how teams replace it.
Wire Harness Software
Buyer-facing overview for teams evaluating harness software and deployment options.