New mounting options for harsh environment memory receptacles

Nexus GB has expanded its range of memory token receptacles with the release of the SR4410 family of IP-rated units, manufactured by Datakey Electronics.  The new series provides OEMs with additional mounting options, allowing them to integrate Datakey Electronics’ award-winning data carriers into more applications, particularly those operating in harsh environments.

The rear mounted SR4410 provides a new mounting option, compared to the previously released SR4310 series of front mounted immersion rated receptacles.  "The new receptacle has a completely flush exterior, unlike the existing models, which can be a benefit for some designers, as can the rear mount,” explained Victoria Barrett, Nexus’ PR and marketing director. “The existing range has to be mounted from the outside, with screws threaded in from the inside, which can be tough in some installations. In contrast this unit allows the OEM to attach the unit from the inside, which in some applications will make installation easier. It’s all about simplifying things for the OEM, allowing them to reduce costs and use space more efficiently."


The new line meets the growing need for OEMs to have a reliable and proven portable memory system, which offers protection in wash-down or outdoor applications where the receptacle may be exposed to dust, water or chemicals.  The SR4410 features a tough outer shell that prevents dust and water from entering the OEM’s electronics enclosure through the receptacle opening.  As a result, the receptacles are available in IP-65 splash-proof and IP-67 immersion rated versions. By adding the option of an outer shell, manufactured from a highly-conductive plastic which reduces electromagnetic emissions, a reduced EMI version can be produced.  

The SR4410 range combines a gasket for sealing with a built in mechanism for over tighten protection. These receptacles also include a detent mechanism that both increases token retention and gives users tactile confirmation when a token is physically engaged.  Additional features include a last-on/first-off contact for token detection and a self wiping action that cleans the contacts with each token insertion and removal.

The new receptacles are a natural extension to the existing family of token receptacles, manufactured by Datakey Electronics and available from Nexus.  The key features of the range include a 50,000 cycle rating and environmental ratings including MIL-Spec vibration, shock and salt-fog.


The original SR4310 series has already been implemented in medical, military, and industrial applications.  These receptacles are compatible with Datakey Electronics’ entire range of SlimLine™ memory, extended SlimLine™ memory and Managed-Memory® Tokens, offering four industry-standard serial interface protocols and memory capacities ranging from 1Kbit to 1GByte.