English
Shenzhen REUNION Electronic Co., Ltd. includes the M5 series connector in its circular interconnect portfolio for compact sensing and signal transmission tasks. Since 2011, the company has supplied these small-format connectors to customers in factory automation, robotics, and instrumentation, where panel space is limited and cable routing requires a minimal footprint. The M5 interface is typically used for low-current sensor connections, proximity switches, and miniature actuators.
The M5 series is characterized by a small threaded coupling diameter, which allows mounting in tight spaces where larger circular connectors cannot fit. Standard configurations include 3-pin and 4-pin versions, with contact arrangements designed for sensor supply voltage and signal return. Current ratings are modest, generally in the range of 1 A to 3 A depending on contact size and ambient temperature, making the series suitable for data and low-power circuits rather than high-current motor loads.
Compared to the M8 Series Connector and M12 variants, the M5 offers a smaller outside diameter and tighter mounting pitch. This makes it preferable for end-of-arm tooling, miniature cameras, and laboratory devices with limited panel depth. The trade-off is lower current capacity and fewer available positions. Users should confirm wire gauge and cable outer diameter compatibility before selecting the M5 format, since the smaller housing leaves less room for strain relief and termination.
Depending on the housing and cable entry design, M5 connectors can be configured with sealing elements to achieve IP67 protection against dust and temporary immersion. Sealed versions are appropriate for machine exteriors and washdown zones, while unsealed versions remain usable inside protected enclosures. REUNION tests sealed assemblies according to the required ingress protection level, and each production lot is checked for continuity and insulation resistance before release.
REUNION accepts custom requests for M5 connectors, including angled housings, specific cable lengths, and overmolded strain relief. The factory covers about 4,000 square meters, employs around 150 people, and operates 10 production lines with a monthly capacity near 100,000 sets. The engineering department handles over 30 customized projects each year, supported by 13 patents and 2 software copyrights. Complete Cable Assembly units can be supplied with wire cutting, stripping, soldering, and electrical testing performed in-house.
Manufacturing follows ISO 9001 and ISO 14001 systems, with ISO 13485 applied to medical-related projects. Products are evaluated to UL, CB, and CQC standards as applicable. Incoming materials are sourced from approved suppliers, and the ERP system maintains batch records from raw material receipt to final shipment, supporting traceability for customers with documentation requirements.
Most M5 connectors are rated between 1 A and 3 A per contact, depending on pin count and wire gauge. They are intended for sensor signals and low-power devices. For higher current demands, an M8 or M12 series design is usually more appropriate.
Yes, sealed versions with O-rings and cable glands can achieve IP67, making them suitable for outdoor or washdown environments. REUNION confirms the specific sealing arrangement and test conditions before production.
Yes. The company offers complete cable assemblies with M5 connectors, including custom cable lengths, wire gauges, and jacket materials. All assemblies undergo continuity and insulation testing before shipping.
