Cable and wire harness assembly · Carlsbad, California
Cable assembly and wire-harness services in San Diego
Spectrum Assembly, Inc. (SAI) builds custom cable assemblies and wire harnesses in-house at its Carlsbad, California facility for OEMs that need recurring production in San Diego County and Southern California. One manufacturer covers the assembly, the tester, and the records defined for your program, with a direct path to PCB assembly and box-build integration.
ISO 13485:2016 and AS9100D / ISO 9001:2015 certified (NSF-ISR) · 6300 Yarrow Drive, Suite 100, Carlsbad, CA 92011 · +1 (760) 930-4000

What SAI builds
Custom cable assemblies and wire harnesses, built in-house
SAI is a cable and wire harness manufacturer in San Diego County that performs the work directly. Your drawing, bill of materials, and test requirements define the build; SAI reviews them before quoting and confirms the production scope.
Custom cable and wire harness assembly
SAI builds custom cable assemblies and wire harnesses in-house to your drawing, wire list or pinout, bill of materials, and current revision level.
Recurring production review
SAI builds for recurring OEM production. Material availability and the production schedule are reviewed with you during program review. Turnkey material is the preferred model; hybrid material arrangements are supported.
Cable and harness design support
Design support is available inside a cable or harness program. The engineering work, deliverables, responsibilities, and commercial scope are defined with you during program review.
Tester and software development
SAI can develop the tester and the test software for cable and harness programs, built around your test method and acceptance criteria. Required test results are defined for the program before production.
Program review
Program review before the first production build
Review starts with your current cable or harness definition, bill of materials, revision level, expected quantities, and test requirements. SAI checks material availability and the production schedule before confirming timing.
When manufacturing information is missing, outdated, or conflicting, SAI works with you to resolve it. Missing documentation is something SAI may offer to create as a separately scoped NRE item.
A pilot build is available before full production when a program calls for it; you approve the move to production after reviewing the results.
Standalone or integrated
Standalone harness work, or one program with the complete product
Cable and wire-harness assembly can run as standalone work. When the product needs more, SAI performs the PCB assembly, enclosure and mechanical assembly, firmware loading, device programming, and testing directly, so the harness is built and integrated under one program.
Who this is for
OEMs that need recurring harness production under a certified quality system
SAI works with industrial OEMs and with programs under its certificate scopes: ISO 13485:2016 for the medical device industry, and AS9100D, the aerospace quality management standard, with ISO 9001:2015. If your cable or harness program needs recurring production and defined records, send it for review.
Read the certificate scopesTraceability and records
Records and traceability defined per program
SAI confirms the record package during program review rather than assuming one package for every cable or wire-harness build.
- Customer records can include a packing slip, certificate of conformance, and Device History Record when required.
- Component traceability by manufacturer lot number or date code is scoped per program and depends on the material records available.
- List any additional traceability, inspection, or reporting requirements in the RFQ so SAI can confirm what is supportable for your program.
Prepare for review
What to send with a cable or wire-harness RFQ
Send the most current information you have. SAI identifies the next details needed after review.
- Current cable or wire-harness drawing or specification
- Bill of materials and approved component information
- Wire list or pinout
- Current revision level
- Expected quantities or forecast
- Test requirements and acceptance criteria
- Required production records
- Any PCB, mechanical, programming, or integration scope
FAQ
Frequently asked questions about cable and wire harness assembly in San Diego
- What do you need to quote a cable assembly or wire harness?
- Send the current drawing or specification, bill of materials, wire list or pinout, revision level, expected quantities or forecast, test requirements, and any required records. SAI reviews the package and tells you what else is needed.
- Do you build custom cable assemblies for recurring OEM production?
- Yes. SAI builds custom cable assemblies and wire harnesses for recurring OEM production. Each program is reviewed for fit, considering material availability and the production schedule.
- Can you develop the test fixture and software?
- Yes. For cable and harness programs, SAI can develop the tester and the test software when the test method, acceptance criteria, and required results are defined for the application.
- Do you offer cable and harness design support?
- Yes, inside a cable or harness program. The engineering work, deliverables, responsibilities, and commercial scope are defined during program review.
- What records and traceability are available for harness programs?
- Records can include a packing slip, certificate of conformance, and Device History Record when required. Traceability is scoped per program; list your requirements in the RFQ and SAI confirms what is supportable.
- Which certifications cover cable and harness assembly?
- SAI holds ISO 13485:2016, certificate C0095753-MD7, scope: “The manufacture of PCB assemblies, harnesses, cables and system integrations per customer specifications for the medical device industry.” It also holds AS9100D with ISO 9001:2015, certificate C0095753-AS6, scope: “Manufacturing of printed circuit board assemblies (PCBAs), wire and cable (W&C) harness assemblies, and complete systems integration per customer specifications.” Both are issued by NSF-ISR.
- Where are you located?
- SAI is located at 6300 Yarrow Drive, Suite 100, Carlsbad, CA 92011, in San Diego County. Call +1 (760) 930-4000 or use the contact form to start an RFQ.
- Can harnesses be integrated into a box build?
- Yes. SAI performs PCB assembly, enclosure and mechanical assembly, firmware loading, device programming, and testing directly, so a harness can be built and integrated into the complete product under one program.
Related manufacturing services
PCB assembly
Surface-mount and through-hole PCB assembly under the same program as the harness.
Review PCB assembly servicesSystem integration
PCB, cable, enclosure, programming, and test work in one box-build program.
Review system integration servicesCarlsbad facility
Location and facility information for a program discussion or visit.
View the Carlsbad facilityDiscuss your cable or wire-harness program
Share your current assembly information, expected quantities, test requirements, and any related PCB or integration scope. SAI reviews it and identifies what is needed next.
Start a cable or wire-harness RFQOr call +1 (760) 930-4000 · Carlsbad, CA