51890-002LF

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Backplane Connectors are gaining popularity in the industrial sector for their compact size, high pin counts, and efficient power and ground distribution. The use of specializsed backplane connectors has become increasingly popular in applications requiring a high pin count, such as telecommunications and computing systems. This paper will discuss the application field and working principle of the 51890-002LF.

The 51890-002LF is a specialized backplane connector designed to meet the tough environmental and electrical requirements encountered in high speed telecommunications, digital signal processing, and other specialized applications. It is based on a high speed, multi-pin, short-reach, mid-mount stacked connector design that enables up to 54 pairs of differential signal lines to be housed in a relatively small space. The connector is designed to reliably accommodate differential signals up to 25 GHz with 1.85 mm centers, making it suitable for a variety of applications, including high-speed digital backplane, network switches, routers, and switches.

The 51890-002LF backplane connector is constructed with a durable die cast zinc alloy housing with four shrouded contacts each. The high contact force elements are comprised of a spring contact and electric arc sealed interface, gold plated finish for optimal performance and reliability. It uses an optional locking system to ensure secured mating retention. The connector has a rated current carrying capacity of 1A and a rated voltage of 250VAC, making it suitable for use in applications with higher power requirements. The 51890-002LF is also designed to meet the rigorous electrical performance requirements of MIL-STD-1760 and EIA-364-32A.

The connector\'s working principle is based on the principle of electrical contact, in which two open mated contacts act as electrical contact points that can carry electrical current while resisting arcing and corrosion. The mating pieces are comprised of a male and female contact element, each with its own specific configuration. The male element is a guide pin that serves to align the contacts with the mating female element. The female element has a plug housing that houses the contact center. The contact center is made up of a spring contact, which serves to apply an improved contact force on the two mating elements. Furthermore, in order to increase the reliability of this contact, an electrically arc sealed interface (EAH) is applied to the contact surfaces of the connector in order to ensure optimal contact performance.

In conclusion, the 51890-002LF is a specialized backplane connector designed for use in a wide range of telecommunications, digital signal processing, and other specialized applications. Its durable and reliable design ensures maximum electrical performance, while its optional locking system and EAH interface maximize contact retention and corrosion resistance. The 51890-002LF backplane connector is an ideal solution for applications requiring a high pin count in a compact form factor.

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