Every engineer designing systems for defense, aerospace, space, or medical applications knows the moment: the design is progressing, specifications are taking shape, and it becomes clear that the standard catalog connector simply doesn't meet the requirement — not compact enough, wrong pin layout, wrong backshell geometry for the available space.
At that point, two options emerge: adapt the system design to the connector, with all the compromises that entails, or find a partner capable of providing custom connector solutions that adapt to the system.
The real problem: designing around catalog limitations
In harsh environments, every millimeter and every gram matters. Modifying a PCB to accommodate a slightly oversized connector, adding an adapter plate because no backshell has the right geometry, giving up on a mixed layout because it doesn't exist in the catalog — these compromises add up and ultimately weigh on the overall system design.
The core issue isn't the connector itself. It's having to design around a fixed standard, when every application has its own mechanical, electrical, and environmental constraints.

What custom connector solutions concretely change
Customizing a connector isn't simply a color change or specific marking. It means being able to act on every technical parameter of the product so that it integrates seamlessly into your architecture — from the connector itself up to the fully integrated system.
01At the connector level
- Custom shapes and footprints to fit the most constrained spaces
- Mixed layouts combining signal, power, coax, and fiber optics in a single housing
- Connector guidance and locking mechanisms tailored to each application
- Specific materials and surface treatments (nickel, cadmium, black zinc, gold, silver)

02At the harness level
- Electrical, optical, FFC (Flat Flexible Cable) and FPC (Flexible Printed Circuit) wiring
- Complex and integrated wiring architectures
- IPC compliance up to Class 3

03At the plug & play sub-assembly level
- Full mechanical integration
- Dedicated PCB design and production

04Up to the complete integrated system
- From design and mock-up through to series production
- Electronic and software integration
- A single point of contact, a single process

From concept to part: an end-to-end mastered industrial process
At Nicomatic, design, prototyping, laboratory testing, and production are all carried out in-house, within an EN9100-certified environment. The journey from concept to prototype to series production therefore happens with no loss of technical information.
To secure your custom development phases, we rely on the production of prototypes or mock-ups. This validation step makes it possible to test the design under real conditions and to lock in the technical concept with full confidence before moving into series production.
And in practice, what does this mean for your project?
Whether your need involves a connector with a specific requirement, a harness integrating multiple technologies in a reduced footprint, or a complete plug & play sub-assembly, the principle remains the same: the interconnection solution adapts to your system, not the other way around.
To find out whether a custom solution is feasible for your application, our teams carry out feasibility studies based on your technical constraints.