Aerospace & space
Flight and ground-support electronics built with full lot and date code traceability.
PCB design · Fabrication · Assembly · Box build
Precision circuits, from prototype to production
Calnox Circuits delivers PCB design, fabrication, assembly, testing and component kitting for OEMs and R&D teams. Your order is managed by our US office, California, and built at our manufacturing facilities in India, so you get dependable quality at a lower cost.
Precision component placement
Why Calnox Circuits
Calnox LLC is a California-based electronics manufacturing partner offering tailored PCB solutions across industries. We specialize in budget-friendly design, fabrication and assembly for testing and R&D departments, with orders and program management handled by our US office, California, and manufacturing at our own facilities in India. That combination keeps costs down without compromising quality.
Speed and responsiveness
Fast quote turnaround and quick-turn prototypes help your team get to market sooner. Your US point of contact works in your time zone and keeps you updated from the first clarification call to final QA and delivery to your door.
Start your projectUS service, cost-effective manufacturing
Your boards are built at our facilities in India.
Irvine, California, USA
Sales & program office
Quotes, orders, engineering clarifications, purchase orders and project updates. Your single point of contact, in your time zone.
India
Manufacturing facilities
PCB fabrication, assembly, box build, testing and kitting, followed by final QA and shipment to your site in the US or worldwide.
All manufacturing takes place at our facilities in India, which is how we keep pricing competitive for R&D, prototype and production builds.
Built to industry standards
- IPC-A-610Workmanship trained staff
- ISO 9001Aligned quality workflow
- ITAR-awareControlled processes
- Full traceabilityLot and date codes
PCB assembly and manufacturing services
Use one service or the whole chain. Every program gets a single point of contact and a clear production timeline.
PCB design
Schematic capture, layout, SI/PI review and DFM feedback from an experienced team using current design tools, so your boards are ready to build right the first time.
Discuss your design
PCB fabrication
Single, multi-layer, rigid and rigid-flex boards, 1 to 20+ layers, with controlled impedance, HDI and quick-turn prototypes in 24–48 hours.
Quote a fabrication
PCB assembly
Turnkey and consignment SMT and through-hole assembly, fine-pitch and BGA, with AOI and X-ray inspection built into the process.
Quote an assembly
Box build
Cable and harness assembly, mechanical integration, firmware loading, configuration, labeling and pack-out: a finished product, ready to ship.
Quote a box build
Testing services
Functional, in-circuit and stress testing that catches issues before your boards ship, with documented results for every build.
Plan your testing
Procurement & supply chain
Global component sourcing from authorized distribution, lifecycle and obsolescence tracking, and inventory programs that keep builds on schedule.
Review your BOM
Core strength
Kitting & NPI that keeps your line moving
A missing part or a BOM mismatch can stop a build cold. Our kitting team sources, verifies and stages every component, whether the build runs on our lines, in your facility or at another contract manufacturer.
- BOM reconciliationMismatches caught before they reach the line
- Component procurementAuthorized sources, counterfeit avoidance
- Full & partial kitsLabeled by build, line or work order
- Obsolescence managementAlternates proposed before end-of-life
- Kanban & consignmentInventory matched to your build cadence
- NPI supportFirst builds, ECOs and ramp to volume
Extensive industry experience
From complex R&D prototypes to production builds, our team supports engineering groups across demanding sectors, each with its own documentation, traceability and quality expectations.
Medical devices
Prototype and pilot builds for device startups and established OEMs.
Defense
ITAR-aware handling for prime contractors and their subcontractors.
Automotive & EV
Control, charging and sensor boards built for harsh environments.
Telecommunications
Wired and wireless hardware, from RF prototypes to network equipment.
Industrial & robotics
Motion control, automation and capital-equipment electronics built to run for years.
Clean energy & battery
Power conversion, battery management and monitoring electronics.
Test & R&D labs
Budget-friendly quick-turn builds for engineering and validation teams.
How we work
A clear, eight-step path from first conversation to delivered boards.
Discuss the project
We go over requirements, technical details and desired outcomes.
Submit files
Send your work request, Gerbers and BOM for design, fabrication or assembly.
Clarification
We resolve open questions on specs, timelines and anything critical to success.
Quotation
A detailed quote covering design, fabrication and assembly costs.
Quote acceptance
You approve the quote and its terms to proceed.
Purchase order
Your PO formalizes the pricing and scope agreed on.
Build
Our team starts design, fabrication and assembly, with updates along the way.
QA & shipment
Final quality checks, then secure, on-time delivery to your site.
Trusted by engineering teams
We prioritize client satisfaction at every step, from tailored consultations to on-time delivery. Our goal is lasting partnerships built on trust, transparency and quality.
Have Gerbers and a BOM ready?
Send them over and we'll come back with a quote and a real production timeline.
Tell us about your project
our replies within one business day.