What are M8 connectors?
Meet the Connector: M8 Connector
Due to their design and functionality, as well as compact size and reliable connectivity, M8 connectors play a crucial role in a wide range of industries, from industrial automation to automotive applications. M8 connectors are commonly used in industrial settings as sensor and actuator connections. With an 8 mm locking thread, they are smaller than M12 connectors, making them ideal for applications that require a lightweight connector or those that have limited space.
“One of the most notable attributes of the M8 connector is its robust design,” said Brian Wang, field application engineer with JPC Connectivity.
Another major advantage of the M8 connector is reduced setup time, since the need for installing and maintaining a wiring system is eliminated.
The “M” in M8 stands for metric and the number “8” refers to the diameter of the connector’s thread. Its small size makes it ideal for applications where space is limited or where multiple connections need to be made in proximity.
Variety of Configurations
M8 connectors come in a variety of configurations, including male and female, straight and angled, and 3-, 4-, and 5-pin versions.
How to Specify
- Number of pins (3-pin, 4-pin, and 5-pin configurations) depends on the application.
- Coding, indicated by a letter on the connector (most commonly A, B, and D) prevents mismating.
- Termination is screw termination, panel mount, solder, or crimp.
- Shell material is typically nickel-plated brass or stainless steel, depending on the environmental conditions in which the connector will be used.
- Mating is typically with either overmolded cable assemblies or panel jacks. The mating connector should be compatible with the specific M8 connector being used.
The compact size of the M8 connector makes it particularly suitable for space-constrained applications like factory automation machinery. In industrial automation, M8 connectors are commonly used to connect sensors, switches, actuators, PLCs, I/O boxes, and other components in industrial machinery, such as food and beverage processing, machine building, rubber and plastics, textile and printing presses, and in HVAC system valves. M8 connectors are found in RFID readers used in rail and industrial markets. In the automotive industry M8 connectors are used in lighting, sensors, and onboard electronics.
“The M8 connector’s ability to provide a secure connection in tight spaces and withstand the rigors of the road makes it an essential component in modern vehicles,” said Wang. “The M8 showcases its unique compact design and robust functionality. Its versatility and durability make it an indispensable component in industries that demand reliable connections in challenging environments. As technology continues to advance, the M8 connector’s role is likely to expand even further across various sectors.”