From Plug Matching to a Complete Cable-Side Solution
When a connector is already designed into a high-value piece of equipment, changing the equipment-side receptacle is usually the last thing an engineer wants to do.
That was exactly the situation in this project.
The customer was sourcing mating plugs for an existing Phantom Miro C321 Air high-speed camera system. The camera-side receptacles were already fixed, so the requirement was not to redesign the interface. The customer needed compatible mating connectors that could work with the existing original-brand receptacles, while also improving procurement cost and lead time.
At first glance, this looked like a straightforward connector cross-reference project.
It wasn’t.
Once we moved beyond the main plug part numbers, cable collet size, contact gender, bend-relief style, material, and even bend-relief color all became part of the solution.
That is a useful reminder for any engineer working on a circular connector cross reference:
A good connector cross-reference should solve the complete interface requirement—not just match the connector body.
The Application: Connectors for a Rugged High-Speed Camera
The equipment involved in this project was a Phantom Miro C321 Air. According to the manufacturer’s current product information, the camera is designed for harsh airborne test applications and provides 1,480 fps at full HD resolution. It also incorporates programmable I/O and Gb Ethernet connectivity, with Ethernet accessed through a cable using a Fischer connector. Phantom High Speed
Phantom Miro C321 Air product information
That application background matters.
For equipment designed around a rugged circular connector interface, choosing another connector is not simply a matter of finding something with the same number of contacts. The mating geometry, connector size, contact configuration, coding, cable accommodation, and rear accessories all have to be considered together.
The customer’s starting point was a set of existing original connector references:
- S 1031 Z012-130, with E3 1031.1/5.2 and E4 1031.190.2
- SS 103 A058-130, with E31 103.2/5.2 + B and E4 103.190.5
- SS 103 Z056-130, with E31 103.2/5.2 + B and E4 103.190.6
The requirement was clear: provide INTE-AUTO connector configurations that could mate with the existing original-brand receptacles on the equipment.
Our Approach: Start With the Existing Interface
One of the most common mistakes in connector cross-reference projects is to start with appearance.
Two circular connectors may look almost identical from the outside and still be mechanically incompatible. Even when the shell size is similar, differences in keying, insert orientation, contact gender, mating dimensions, or locking geometry can prevent correct mating.
For this project, we worked from the customer’s original references and translated the requirements into complete INTE-AUTO configurations.
The resulting cross-reference was not limited to the connector body. We also considered the cable collet and bend relief required to complete each cable-side connector.
Cross-Reference 1: 1.5F 12-Pin Straight Plug
| Original Reference | INTE-AUTO Reference | Description |
|---|---|---|
| S 1031 Z012-130 | INT13-S1031Z012- 130XX | 1.5F 12-pin straight plug, Code 1, cable collet, female solder contacts, pearl chrome finish with red dot |
| E3 1031.1/5.2 | INT13-E3 1031.1/5.2 | 1.5F, 5.2 mm cable collet |
| E4 1031.190.2 | INT13-GMA.15F.065.S1N | 1.5F, 6.5 mm black silicone original-style bend relief for F Series standard nut |
The main connector supplied by INTE-AUTO is INT13-S1031Z012-130XX.
It is configured as a 1.5F 12-pin straight plug with female solder contacts, Code 1, a pearl chrome finish, and red-dot identification.
Cross-Reference 2: 1F 8-Pin Short Plug
| Original Reference | INTE-AUTO Reference | Description |
|---|---|---|
| SS 103 A058-130 | INT13-SS103A058-130XX | 1F 8-pin short plug, Code 1, cable collet, male solder contacts, pearl chrome finish with red dot |
| E31 103.2/5.2 + B | INT13-E31 103.2/5.2 + B | 1F, 5.2 mm cable collet |
| E4 103.190.5 | INT13-GMA.1F.062.DJ | 1F, 6.2 mm yellow TPU bend relief |
For the second interface, we provided INT13-SS103A058-130XX, an 8-pin short plug with male solder contacts.
This configuration introduced an additional requirement that turned out to be important: the customer needed a yellow bend relief.
Cross-Reference 3: 1F 6-Pin Short Plug
| Original Reference | INTE-AUTO Reference | Description |
|---|---|---|
| SS 103 Z056-130 | INT13-SS103Z056-130XX | 1F 6-pin short plug, Code 1, cable collet, female solder contacts, pearl chrome finish with red dot |
| E31 103.2/5.2 + B | INT13-E31 103.2/5.2 + B | 1F, 5.2 mm cable collet |
| E4 103.190.6 | INT13-GMA.1F.062.DR | 1F, 6.2 mm red TPU bend relief |
The third interface required INT13-SS103Z056-130XX, a 1F 6-pin short plug with female solder contacts.
Here, the customer required a red bend relief, creating the same sourcing issue as the yellow version.
And this is where the project became more interesting than a simple part-number conversion.
The Connector Was Compatible. The Bend Relief Still Needed a Solution.
Once the mating connectors had been identified, there was another detail to solve.
The customer wanted three different cable-side configurations with black, yellow, and red bend reliefs.
For the black configuration, the solution was straightforward.
INTE-AUTO could provide INT13-GMA.15F.065.S1N, a black silicone bend relief with a style similar to the original configuration.
The yellow and red versions were different.
At that time, we did not have the same original-style silicone bend relief available from stock in yellow and red.
It would have been easy to stop there and tell the customer that only black was available.
Instead, we looked at what the customer actually needed and proposed another practical route.
Using Colored TPU Bend Reliefs as an Alternative
For the yellow cable connection, we proposed:
INT13-GMA.1F.062.DJ — 6.2 mm yellow TPU bend relief
For the red cable connection, we proposed:
INT13-GMA.1F.062.DR — 6.2 mm red TPU bend relief
These TPU bend reliefs provide the requested colors, but they are not identical copies of the original silicone design.
In particular, the rear-nut configuration differs from the original-style version.
We made that difference clear to the customer before proceeding. Rather than presenting the TPU component as an exact copy, we explained the structural difference and provided photos so the customer could evaluate the proposed configuration.
This may seem like a small detail, but it represents an important part of how we handle cross-reference projects.
Compatibility should not mean hiding differences.
When an alternative component differs in material, appearance, rear structure, or assembly method, the customer should know that before samples or production parts are ordered.
Why Keep the Black, Yellow, and Red Identification?
Using different bend-relief colors can also be useful when several similar circular connectors appear on the same piece of equipment.
The colors give operators and technicians an immediate visual reference at the cable end. While color coding does not replace mechanical keying or correct connector identification, it can make cable installation and maintenance more intuitive.
In this case, the proposed configurations allowed the customer to retain three visually distinct cable connections:
Black — 12-pin connector configuration
Yellow — 8-pin connector configuration
Red — 6-pin connector configuration
Instead of forcing all three assemblies into the same black bend-relief configuration simply because it was readily available, we found a way to maintain the requested color distinction.
Cable Collets: Another Small Detail That Can Complicate Purchasing
There was another opportunity to simplify the customer’s sourcing process.
The original connector list included separate cable-collet references such as:
E3 1031.1/5.2
and
E31 103.2/5.2 + B
With our solution, the customer does not necessarily need to manage the cable collet as a separate purchasing item.
The customer can provide the actual cable outer diameter (OD), and we can select the appropriate cable collet and assemble it into the plug before shipment.
This changes the conversation from:
“Which collet part number should I order?”
to:
“This is my cable OD. Please configure the connector accordingly.”
For engineers this is a relatively small difference. For purchasing teams managing many connector components and accessories, however, reducing the number of individual items that need to be selected and ordered can make the process much easier.
Cost Saving Without Redesigning the Camera Interface
Cost reduction was one of the reasons the customer considered an alternative sourcing solution, but this project was not about reducing cost by removing necessary connector features.
The more meaningful saving came from working around the customer’s existing equipment interface.
The receptacles were already part of the camera. Changing them could introduce unnecessary mechanical modifications, wiring changes, new drawings, assembly changes, and additional validation work.
Instead, we provided mating-side INTE-AUTO configurations designed around the customer’s existing interface requirements.
This gave the customer an alternative procurement route without requiring an unnecessary redesign of the equipment-side connection.
That distinction matters.
The cheapest connector is not necessarily the lowest-cost solution if selecting it forces the customer to redesign everything around it.
Shorter Lead Time and More Sourcing Flexibility
Lead time was another important consideration.
For this project, INTE-AUTO could offer the customer a shorter lead time than the original sourcing route, in addition to a lower procurement cost.
In equipment manufacturing and test systems, a connector may represent only a small part of the overall BOM, but a missing connector can delay an entire cable assembly or equipment build.
An additional compatible sourcing route therefore has value beyond the connector’s unit price.
It can help customers respond more flexibly to prototype requirements, maintenance demand, small production batches, and future cable assembly needs.
Cross-Reference Is More Than a Part-Number Conversion
This case also illustrates why we do not recommend choosing a push-pull connector cross reference based only on the model name or number of contacts.
For example, the three connectors in this project already show meaningful differences:
The 12-pin configuration uses a 1.5F straight plug with female solder contacts.
The 8-pin configuration uses a 1F short plug with male solder contacts.
The 6-pin configuration is also a 1F short plug, but uses female solder contacts.
Then there are the cable collets, cable OD requirements, bend-relief dimensions, bend-relief materials, and rear structures.
A proper cross-reference therefore needs to consider the complete assembly.
For similar projects, we normally recommend confirming the mating interface and connector size, keying or coding, contact count and gender, insert arrangement, cable OD, termination method, cable construction, shielding requirements, bend-relief requirements, and the electrical and environmental conditions of the application.
A cross-reference should be verified at the interface level, not just at the part-number level.
From Compatible Connectors to Custom Cable Assemblies
There is also a natural next step after the connector configuration has been confirmed.
Many customers initially contact us because they need an individual mating plug. Later, they realize that managing the connector, cable, shielding, soldering, strain relief, and testing separately creates additional work.
INTE-AUTO can therefore extend the same project into a custom cable assembly.
Once the customer provides the pin assignment, cable type, cable OD, conductor requirements, cable length, shielding requirements, and termination details, we can evaluate the complete assembly rather than supplying only loose connector components.
For an application such as a high-speed camera system, this can simplify sourcing because the connector and cable are treated as one interconnect system.
What This Project Says About a Good Connector Supplier
For us, the most useful part of this case was not simply finding three corresponding connector numbers.
The real work was understanding what had to remain unchanged and what could be adapted.
The existing camera receptacles had to remain. The mating interfaces had to be compatible. The correct contact configurations had to be maintained. The cable collet had to fit the customer’s actual cable. The customer also wanted black, yellow, and red identification, even though the original-style bend relief was not available in all three colors.
Each of those requirements influenced the final solution.
That is why, at INTE-AUTO, we see connector cross-referencing as more than a catalog search.
It is a process of turning an existing interface into a practical sourcing solution—balancing mating compatibility, connector configuration, cable fit, accessory availability, cost, lead time, and future cable assembly requirements.
Need a Cross-Reference for an Existing Connector?
If your equipment already uses a circular connector and you are looking for another sourcing option, you do not necessarily need to start with a new connector design.
Send us the existing part number, photos of the mating interface, cable OD, pin assignment, cable requirements, and application conditions.
INTE-AUTO can help evaluate the existing interface, identify a suitable compatible connector configuration, match the required accessories, and develop a complete custom cable assembly when needed.
Sometimes the right solution is not to redesign the interface. It is to understand it properly.
