By Alun Williams 31st January 2022
Binder is adding to its 818 product series with connectors using D-coding in the M8 form factor, for space-saving miniaturised sensors in Ethernet applications.
With a third less space required than for M12, the 4-pin connectors enable the network connection of small actuators and sensors with data rates of up to 100 Mbit/s.
Specifically, they are aimed at Industrial Ethernet applications with communication protocols such as EtherCAT, EtherNet/IP or PROFINET according to IEEE 802.3 via twisted-pair cables of the Cat-5e category.
Equipped with screw locking, the electromechanical connection meets the specifications of protection degree IP67 when mated and locked, highlights binder.
Also, the hybrid D-coded M8 connectors can supply power in accordance with the IEEE 802.3at standard (Power-over-Ethernet-Plus, PoE+) to connected devices.
The 4-pin D-coded M8 connectors are equipped with gold-plated and symmetrically arranged contacts and are designed for more than 100 mating cycles. A rated voltage of 63 V(DC), a rated current of 4 A, and a rated surge voltage of 1500 V are specified for the products. The operating temperature range extends from -25 °C to +85 °C (idle state).
Shieldable products with screw termination and shielded, molded cable connectors are available. While the former have a 4.0 to 5.5 mm cable outlet and are designed for 0.14 to 0.50 mm2 conductors, the wire gauge of the molded variants is 0.34 mm2 (AWG 22).
Note that in addition to straight male and female connectors, shieldable, angled flange versions are also available from binder.
The industrial circular connector specialist writes:
“In the Ethernet communication of modern production facilities, for example in drives control, properties such as clock synchronism, real-time capability and determinism, but also reliability and robustness are in demand. Use cases in such environments place special demands on the connection technology, both from a technological and an economic point of view. Connectivity solutions should be designed to be variable and scalable, and above all support users in machine and plant engineering in saving space and time during installation.
In addition, secure locking and protection categories appropriate to the field of application are required. M8 circular connectors with screw locking, in accordance with the DIN EN 61076-2-114 standard, are optimized for such application conditions. Here, the M8 form factor in particular has proven itself in installations where space is critical; the use with miniaturized sensors is exemplary for this area of application.”
See also: PCB Ethernet connector for rail and industrial use
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