Connectors help to establish automotive Ethernet guidelines

Mini50 was among the first connection systems including the features required for 100Mb/s transmission speeds and has since become the evaluation platform for many industry developers. For example, “Automotive Ethernet – The Definitive Guide”, co-authored by Intrepid Control Systems and Harman International, points to the Mini50 as a de facto solution. The guide notes that some automotive Ethernet products are on the market using the Molex Mini50 connector system, which is significantly smaller than the RJ-45s used for standard Ethernet connections, and that the connectors are designed and tested specifically for automotive use.

The connection system has demonstrated suitable performance for targeted 1Gb/s systems that have an appropriate blend of cable and assembly manufacturing processes. With the automotive industry moving rapidly toward Ethernet-based solutions, it was critical that a connection system be identified that meets the requirements of USCAR and other industry specifications. At the same time, that connector system had to deliver baseline requirements for Ethernet electrical performance standards.

With its small form factor and established performance, Mini50 delivers on these demands. Offered in both unsealed and water-resistant sealed versions, the system delivers end-to-end link performance in excess of the required 100Mb/s standard. Mini50 also meets the requirements for jacketed unshielded twisted pair lengths of 15m and more that industry standards are calling for. The initial Ethernet 100Base-T1 applications to be launched soon by automotive OEMs call for Mini50 connectors in both single- and multiple-pair configurations.

Mike Gardner, Global Marketing Manager, Molex, commented: “Mini50 connectors feature smaller automotive-grade pin and terminal sizes than traditional connectors, so circuits can be packaged in a tighter space while still providing cost savings and robust automotive reliability. The ever-growing features of applications for the Mini50 connection system will lead to even more exciting near-term developments that will further establish 0.50mm terminals as the right choice for current and future high-speed sealed or unsealed Ethernet applications."