Article Summary: The S Series Metal Push-pull Connector combines compact construction, secure push-pull locking, full EMC shielding, and flexible contact configurations for equipment where connection reliability and limited installation space matter. Developed by Reunion, the series is designed for medical equipment, test and measurement instruments, wearable technology, and portable electronic systems. With shell sizes 0–2, multiple contact options, more than 5,000 mating cycles, and a temperature range down to -45°C, it provides a practical balance between miniaturization, durability, and electrical performance.
Table of Contents
- What Is the S Series Metal Push-pull Connector?
- What Are the Main Advantages of the S Series?
- What Are the Key Technical Specifications?
- Where Is the S Series Metal Push-pull Connector Used?
- How Should Engineers Select the Right Connector?
- How Can the S Series Be Customized?
- How Does Reunion Control Product Quality?
- Frequently Asked Questions
What Is the S Series Metal Push-pull Connector?
The S Series Metal Push-pull Connector is a compact circular connector developed for applications requiring reliable electrical connections in limited installation spaces. Unlike conventional threaded connectors, its push-pull self-latching mechanism allows fast mating and unmating while providing tactile and audible feedback when the connection is properly engaged.
Reunion positions the S Series for portable and space-constrained equipment where connector size, mechanical reliability, shielding, and ease of operation all influence system design. Its metal construction provides mechanical strength and 360-degree electromagnetic shielding, while its slim profile helps minimize protrusion from the equipment panel.
The series is available in multiple shell sizes and contact configurations. Depending on the configuration, engineers can select solder or PCB termination to match different assembly requirements. This flexibility makes the connector suitable for both compact prototypes and volume-produced professional equipment.
What Are the Main Advantages of the S Series?
Connector selection is rarely based on a single specification. For portable electronics and professional equipment, designers typically need to balance installation space, connection security, signal integrity, durability, and manufacturing requirements. The S Series addresses these factors through several design features.
Compact and Lightweight Construction
The low-profile design reduces the amount of connector housing extending beyond the mounting surface. This is particularly valuable in handheld instruments and compact chassis where every millimeter of panel space matters.
Fast Push-pull Locking
The self-latching mechanism supports quick one-handed operation. An audible click and tactile feedback help operators identify successful engagement, which is especially useful when connectors must be installed in confined or visually restricted positions.
360-Degree EMC Shielding
The all-metal housing provides continuous electromagnetic shielding around the connection interface. The published specifications indicate more than 60 dB attenuation at 100 MHz, making the series suitable for equipment where electromagnetic interference can affect sensitive signals.
High Mating Durability
The S Series is designed for repeated connection and disconnection, with a rated durability of more than 5,000 mating cycles. This is important for test equipment, medical instruments, and portable systems that are frequently serviced or reconfigured.
- Low-profile panel installation
- Push-pull self-latching operation
- Metal housing for electromagnetic shielding
- Multiple shell sizes and contact configurations
- More than 5,000 mating cycles
- Operating temperature options from -45°C to +125°C
What Are the Key Technical Specifications?
Understanding the electrical and mechanical specifications is essential before integrating a circular connector into a new product. The following specifications summarize the published configuration of the S Series.
| Parameter | S Series Specification |
|---|---|
| Shell Material | Brass, standard |
| Shell Sizes | 0, 1, and 2 |
| Contact Options | 2 to 6 pins on the referenced configuration; higher-density options may be available |
| Current Rating | 5A to 15A per contact, depending on contact gauge |
| Voltage Rating | 200V to 500V AC/DC |
| Mating Cycles | More than 5,000 operations |
| Temperature Range | -45°C to +125°C |
| EMI Shielding | 360° metal shielding; >60 dB attenuation at 100 MHz |
| Ingress Protection | IP50 standard |
| Salt Spray Resistance | More than 72 hours |
| Contact Resistance | ≤5 mΩ initial |
| Insulation Resistance | ≥5000 MΩ at 500 VDC |
Actual ratings should always be verified against the specific connector configuration, contact size, termination method, and intended operating conditions before final product qualification.
Where Is the S Series Metal Push-pull Connector Used?
The combination of compact dimensions, fast locking, shielding, and mechanical durability makes the S Series suitable for equipment that requires frequent connection while maintaining a small overall footprint.
Medical and Diagnostic Equipment
Portable ultrasound systems, patient monitors, pulse oximeters, electrosurgical equipment, and diagnostic instruments can benefit from compact connectors that remain secure during equipment movement and servicing. Connector reliability is particularly important when electrical signals must remain stable during repeated use.
Test and Measurement Equipment
Handheld oscilloscopes, multimeters, logic analyzers, calibration equipment, and environmental test instruments often require compact external interfaces. The push-pull mechanism can simplify frequent connection changes while the metal shell helps protect sensitive signals from electromagnetic interference.
Wearable and Portable Technology
Industrial exoskeletons, wearable monitoring systems, head-mounted equipment, and other portable electronics can face strict space and weight constraints. A slim circular connector provides designers with another option when conventional larger interfaces are unsuitable.
Professional Audio-Visual Equipment
Portable recorders, broadcast cameras, wireless transmitters, and related professional equipment may require connectors that can withstand repeated handling. A quick-locking interface can improve field usability without relying on a lengthy threaded mating process.
How Should Engineers Select the Right Connector?
Choosing a connector should begin with the actual electrical, mechanical, environmental, and installation requirements of the equipment rather than simply selecting the smallest available model.
- Determine the contact requirement: Identify the number of power and signal circuits needed and leave sufficient room for future design changes.
- Check electrical ratings: Compare operating voltage and current with the connector's rated values, taking contact gauge and temperature into account.
- Evaluate available space: Confirm shell size, panel cutout, connector depth, cable routing, and clearance around the mating interface.
- Consider mating frequency: For frequently serviced equipment, prioritize connectors designed for repeated mating cycles.
- Review environmental conditions: Temperature, vibration, shock, humidity, corrosion, and electromagnetic interference can all influence connector selection.
- Define the termination method: Decide whether solder, PCB, or cable assembly termination best matches the manufacturing process.
For OEM projects, it is also useful to evaluate the connector together with the cable assembly, backshell, strain relief, panel structure, and wiring scheme. This approach reduces integration issues during later production stages.
How Can the S Series Be Customized?
Different equipment platforms often require different connector configurations. Reunion provides customization options that allow the S Series to be adapted to specific mechanical and cable assembly requirements.
| Customization Area | Available Options |
|---|---|
| Shell Finish / Color | Silver, black, or selected RAL colors |
| Contact Plating | Gold, silver, or tin options |
| Cable Gauge | 32AWG to 20AWG |
| Jacket Materials | PVC, PUR, silicone, or PTFE |
| Laser Marking | Logo, part number, barcode, or other identification |
| Packaging | Anti-static tubes, tape-and-reel, and custom labeling |
Custom cable assemblies can also be supplied with selected lengths, gauges, shielding configurations, and overmolded strain-relief boots. This can simplify procurement by allowing an OEM to source a connector and ready-to-install cable assembly as one integrated component.
How Does Reunion Control Product Quality?
For professional connectors, consistent manufacturing is as important as the basic product design. Reunion states that its production process covers precision machining, surface treatment, contact stamping and plating, insert molding, assembly, electrical testing, mechanical testing, and packaging.
Critical production dimensions are controlled through precision machining and process monitoring. Finished products undergo electrical and mechanical inspection, including contact resistance, insulation resistance, dielectric withstand, continuity, mating force, and visual checks.
According to the product information, Reunion's quality system includes ISO 9001:2015, ISO 14001:2015, ISO 13485:2016, UL Recognized status, and RoHS compliance. The company also states that S Series connectors receive 100% electrical and mechanical testing before shipment.
For OEM buyers, this combination of manufacturing control, testing, traceability, and customization support can be valuable when connector performance directly affects the reliability of the finished product.
Frequently Asked Questions
What makes the S Series different from a conventional threaded connector?
The main difference is the push-pull self-latching mechanism. It allows the operator to mate and release the connector quickly without rotating a coupling nut, making it particularly convenient for portable equipment, blind-mating situations, and applications requiring frequent connection changes.
How many mating cycles can the S Series support?
The published specification indicates more than 5,000 mating operations. The actual service life can depend on the connector configuration, operating environment, mating conditions, and maintenance practices.
Is the S Series suitable for medical equipment?
Yes. The series is positioned for medical diagnostic and treatment equipment, and Reunion states that its quality system includes ISO 13485:2016. However, the complete finished medical device remains responsible for its own applicable regulatory and safety requirements.
Can Reunion supply customized cable assemblies?
Yes. Cable assemblies can be customized by cable type, gauge, length, shielding, jacketing material, and strain-relief design. Options include PVC, PUR, silicone, and PTFE cable materials, with gauges from 32AWG to 20AWG.
What temperature range is available?
The published standard range is -45°C to +125°C. Engineers should confirm the temperature rating of the exact connector, contact configuration, cable, and assembly before using it in extreme-temperature applications.
Can the connector be customized with a company logo or part number?
Yes. Reunion lists laser engraving as a customization option, allowing customers to mark the shell with a logo, part number, barcode, or other identification information.
Conclusion
The S Series Metal Push-pull Connector is designed for engineers who need a compact, secure, and durable connection solution without sacrificing shielding or serviceability. Its push-pull locking mechanism, metal construction, multiple shell sizes, flexible termination options, and more than 5,000 mating cycles make it well suited to medical equipment, test instruments, portable electronics, wearable systems, and professional audio-visual applications. If you are developing a new product or looking for a reliable replacement connector, visit Reunion's S Series product page to review the available configuration and contact options. For customized specifications, cable assemblies, OEM requirements, or volume purchasing, contact us to discuss your application with the Reunion engineering team and request a suitable solution.
