Learn how to select Molex 83424 compatible 25 Pin Micro-D CMD cable assemblies, including Micro-D to D-Sub, CMD-to-CMD and GPIB cables.

 

When a test system requires 25 signal connections in a limited installation space, engineers often need to choose between traditional D-Sub connectors and compact Micro-D interfaces.

 

The Molex 83424 Series Cable is designed around 25 position Micro-D CMD connectors, providing a smaller alternative to standard DB25 interfaces while maintaining the same 25-circuit signal capability.

 

However, selecting the correct Micro-D cable assembly is not only about pin count. The required cable structure depends on the equipment interface, installation method, and system architecture.

 

This guide explains the main configurations of Molex 83424 Series compatible cable assemblies and how to select the right option for automated test equipment, industrial electronics, and measurement systems.

1. Why Choose a 25 Pin Micro-D Cable Instead of a Standard DB25 Cable?

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DB25 connectors have been used for decades in industrial equipment, test instruments, and communication systems. Their established design and broad compatibility make them a common choice.

 

However, as electronic equipment becomes smaller, traditional D-Sub connectors can create design limitations.

 

Typical challenges include:

 

• Limited panel space
• Larger connector footprint
• Higher space requirements inside equipment enclosures
• Difficulty integrating more signal channels into compact systems

 

The Micro-D CMD 25 connector addresses these challenges by using a 1.27mm contact pitch design.

 

Compared with a standard DB25 connector, Micro-D provides:

 

• Higher contact density
• Reduced connector size
• 25 signal circuits in a compact package
• Easier integration into space-constrained equipment

 

For applications such as semiconductor testing, automated measurement systems, and industrial control equipment, this smaller footprint can simplify mechanical design.

 

2. Molex 83424 Series Cable Configurations

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The Molex 83424 Series is based on 25 Circuit Micro-D CMD Female connectors. Different cable configurations are available depending on how the equipment needs to be connected. 

 

① Micro-D, CMD 25 Circuits, Female to Open End Pigtail

 

Not every electronic system uses a standard mating connector.

 

OEM equipment manufacturers often require a cable assembly that can be directly connected to:

 

• PCB terminals
• Terminal blocks
• Custom control modules
• Internal wiring harnesses

 

The Micro-D Female to Pigtail Cable provides an open-wire termination that allows engineers to complete the final connection according to their own system design.

 

This configuration is especially useful during equipment development and customized production.

 

Compatible Molex 83424 Series Models :

 

Molex Part Number	Length	Premier Cable Compatible
834249019	0.46 m	PCM-S-0663
834249020	0.91 m	PCM-S-0663
834249021	1.83 m	PCM-S-0663

 

PCM-S-0663 compatible with Molex 834249019, 834249020, 834249021, available customization lengths.

 

② Micro-D CMD 25 Female to Female Cable

 

When both devices use Micro-D CMD interfaces, a Micro-D Female to Female Cable Assembly provides a direct connection without additional adapters. This configuration keeps the compact Micro-D interface throughout the signal path, making it suitable for equipment where installation space is limited.

 

Typical Applications:

 

• Data acquisition systems
• Semiconductor test platforms
• Automated Test Equipment (ATE)
• Modular measurement equipment

 

Compatible Molex 83424 Series Models :

 

Molex Part Number	Length	Premier Cable Compatible
834249056	0.2 m	PCM-S-0786
834249057	0.46 m	PCM-S-0786
834249058	0.91 m	PCM-S-0786
834249059	1.83 m	PCM-S-0786
834249066	3.66 m	PCM-S-0786
834249068	7.32 m	PCM-S-0786

 

Compatible Pickering Micro-D Cable Assemblies :

 

Molex Part Number	Length	Premier Cable Compatible
A025CFR-025CFR-5A050	0.5 m	PCM-S-0786
A025CFR-025CFR-5A100	1 m	PCM-S-0786
A025CFR-025CFR-5A200	2 m	PCM-S-0786

 

PCM-S-0663 compatible with Molex 834249056, 834249057, 834249058, 834249059, 834249066, 834249068, and Pickering A025CFR-025CFR-5A050, A025CFR-025CFR-5A100, A025CFR-025CFR-5A200, available customization lengths.

 

 

③ Micro-D, CMD 25 Circuits, Female to D-Sub 25 Male

 

Many industrial and laboratory systems continue to use DB25 interfaces because equipment often remains operational for many years. A Micro-D to D-Sub 25 Cable Assembly provides a practical connection between newer compact equipment and existing D-Sub based systems.

 

This configuration helps engineers : 

 

• Reduce equipment replacement costs
• Maintain compatibility with existing instruments
• Integrate new modules into legacy test systems

 

Compatible Molex 83424 Series Models :

 

Molex Part Number	Length	Premier Cable Compatible
834249060	0.46 m	PCM-S-0790
834249061	0.91 m	PCM-S-0790
834249062	1.83 m	PCM-S-0790
834249067	2.5 m	PCM-S-0790

 

PCM-S-0790 compatible with 834249060, 834249061, 834249062, 834249062, available customization lengths.

 

PCM-S-0790 also compatible with Pickering A025CFR-025DMR-5A180 for LXI digital I/O triggering and test systems.

 

 

 

 

④ Micro-D, CMD 25 Circuits, Female to IEEE-488 GPIB Interface Cable

 

IEEE-488, commonly known as GPIB (General Purpose Interface Bus), is a standardized communication interface originally developed for connecting and controlling electronic test instruments.

 

The interface was first introduced by Hewlett-Packard (HP) in the late 1960s under the name HP-IB (Hewlett-Packard Interface Bus). It was later standardized as IEEE-488, becoming one of the most widely adopted communication methods in automated test and measurement systems.

 

Unlike modern serial communication interfaces such as USB or Ethernet, GPIB was designed specifically for laboratory instruments that require reliable device-to-device communication and coordinated control. GPIB is commonly found in:

 

• Oscilloscopes
• Signal generators
• Digital multimeters
• Power measurement equipment

 

Although modern systems increasingly use USB, Ethernet, and LXI interfaces, many existing instruments still rely on GPIB communication.

 

PCM-S-0664, a Micro-D to IEEE-488 GPIB Cable allows compact Micro-D based equipment to communicate with traditional GPIB instruments without replacing existing hardware.

 

3. How to Select the Right Molex 83424 Compatible Cable Assembly?

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Choosing the correct 25 Pin Micro-D Cable Assembly requires checking several key factors.

 

① Confirm the Interface Type

 

The first step is identifying the required connection:

 

• Micro-D CMD to GPIB
• Micro-D CMD to D-Sub 25
• Micro-D CMD to Open Wire
• Micro-D CMD to Micro-D CMD
   

Different interfaces require different cable structures.

② Determine Required Cable Length

 

Cable length affects:

 

• Signal routing
• Installation space
• Mechanical layout

 

Molex 83424 Series includes multiple standard lengths, while Premier Cable supports customized lengths to meet specific OEM application requirements.

 

③ Consider the Operating Environment

 

For industrial and test applications, engineers should also evaluate:

 

• Mechanical installation space
• Cable shielding requirements
• Signal interference conditions
• Long-term cable routing requirements

 

4. Conclusion

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The Molex 83424 Series covers several 25 Pin Micro-D CMD cable configurations, from CMD-to-CMD and Micro-D to D-Sub connections to pigtail and GPIB options.

 

The right cable depends on the equipment interfaces, available space, and how the system is wired. For automated test equipment, measurement systems, and industrial electronics, a 25 Pin Micro-D CMD cable assembly offers a compact way to handle multi-channel connections without taking up the space of a standard DB25 interface.

 

Premier Cable provides compatible cable assemblies with OEM length customization for different equipment layouts and integration requirements.