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binder: Robust Industrial Connector in New Short Version


February 28, 2022

binder recently announced the launch of a short version of the 423 series: circular connectors in the M16 form factor with a length of approximately 47 mm. These are available as 2-pin to 19-pin variants and meet IP67 requirements when mated. The product launch concerns short, shieldable cable plugs and sockets, each with cable clamp, in both solder and crimp versions. Depending on the number of pins and connection type, the connectors are designed for wire gauges from 0.14 mm2 (AWG 26) to 1.0 mm2 (AWG 18). The rated values for voltage and current are specified as 32 V to 250 V and 3 A to 7 A, respectively. Cable outlets from 4.1 mm to 7.8 mm ensure variability in the application.

Developed for demanding test & measurement and automation tasks

Target applications for the 423-series short version primarily include applications in test & measurement as well as automation technology that are subject to limited installation conditions. In particular, precision instruments that have to deliver accurate measurement results in confined and noisy environments benefit on the one hand from the particularly compact design of the connectors. On the other hand, the possibility of electromagnetic shielding is essential to prevent interference signals from adjacent electronic circuitry from impairing the detection or transmission at the measuring device.

The declared aim of the product designers at binder was to develop the new M16 variants with as many standard parts as possible despite the specified degree of protection. In order to achieve IP67, they nevertheless needed to integrate an additional lathe part. “Through dedicated and precise development, we have succeeded in establishing the same quality in a smaller form factor,” Product Manager Sascha Doebel comments on the successful new development.

Background M16: From audio classic to 5G and Industrial IoT

Since its first applications in audio technology more than 50 years ago, the M16 form factor has proven itself in a wide range of applications: flexible thanks to various options for termination, assembly and mounting; primarily used for connecting sensors and other field devices in indoor applications.

At the time the first connector system ever produced by binder, the manufacturer has consistently developed the M16 form factor into an indispensable component of industrial automation. Driven by the industry-wide need for reliable, robust and cost-effective connection solutions with low contact resistance at up to 24 pins, this development has led to Industrial-IoT products that can now handle gigabit data rates and withstand extreme conditions in outdoor use.

5G mobile communications, for example, is one of the innovation-rich application areas for binder M16 connectors: here, AISG-compliant (Antenna Interface Standards Group) binder 423-series products are used to connect devices in the network operators’ antenna lines (Antenna Line Devices, ALDs). Initiated among other things by customer requests, binder is now launching a short version of this product series.

10 solder and 5 crimp male and female products – the characteristics

The shieldable short version of the M16 series 423 is available in 10 solder and 5 crimp male and female versions, corresponding to the different pin counts. They are all designed for more than 500 mating cycles.

The maximum wire gauges for solder products are rated at 0.75 mm2 (AWG 18) for pin counts of 2 to 8; and 0.25 mm2 (AWG 24) for 12-pin to 19-pin connectors. The rated voltages are 32 V or 150 V depending on the pin count, the rated impulse voltages 500 V or 1.500 V, respectively. The rated currents at 40 °C range from 3 A to 7 A. All solder products are equipped with brass contacts as well as bronze sockets and are specified for a temperature range from -30 °C to +95 °C. Housing and locking are made of nickel-plated brass.

The crimp products in the series are designed for wire gauges of 0.14 to 1.0 mm2 or AWG 26 to AWG 18 (4 to 6 pins) and for 0.14 to 0.75 mm2 or AWG 26 to AWG 20 (7 to 8 pins). The rated voltages are 32 V or 150 V, the rated impulse voltages are 500 V or 1500 V, and the rated currents are 5 A or 6 A, respectively. The temperature range for the connectors with crimp termination extends from -40 °C to +100 °C. As with the solder versions, the housing and locking are made of nickel-plated brass.




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