This article introduces a compact, robust connector generically referred to as the ix, a next-generation miniaturized Ethernet connector system standardized under IEC 61076-3-124, engineered to replace RJ45 in industrial automation environments. At roughly one-quarter the volume of RJ45, the ix gives design engineers the dimensional headroom to integrate Ethernet connectivity into space-constrained assemblies unsuitable for standard RJ45 jacks. Despite its compact form factor, the interface delivers superior mechanical robustness through dual metal locking latches and through-hole reflow shield pins, yielding PCB retention forces that exceed RJ45. Electrically, the 360-degree shielded, symmetric-pair contact architecture attains inductance values of 0.14 – 0.45 nH – an order of magnitude below RJ45 – enabling Cat.6A-certified for 10GBASE-T transmission with enhanced EMI/ESD immunity. The connector supports PoE++ (IEEE 802.3bt) and offers IP20 and IP65/67 variants, including an IP20 variant with integrated magnetics. Adopted across PROFINET, EtherCAT, GigE Vision, and CC-Link IE TSN protocols, the ix is manufactured by multiple independent vendors including Hirose, HARTING, and Amphenol, ensuring open-market pricing and broad supply chain availability for factory automation, robotics, machine vision, and servo drive applications.
Authors Ross D’Amico, Engineering Supervisor, Industrial Ethernet, Amphenol Matthias Fritsche, Senior Expert Ethernet, HARTING Technology Group William MacKillop, Director Interconnect Technology, HIROSE Electric Americas
