926495-4

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Backplane connectors provide the electrical interconnect between the backplane and the printed circuit board or cable assemblies. The 926495-4 backplane connector is one of the most commonly used connectors in the aerospace industry. This connector is used in many applications including the control and monitoring of air vehicle subsystems and space exploration systems, as well as in avionics systems and flight control systems. This article will discuss the application fields and working principles of 926495-4 backplane connectors.

Application Fields

The 926495-4 backplane connectors are designed for applications that require high speed, high reliability, and low electrical cross-talk. The connectors are commonly used in avionics systems, such as the flight control systems, navigation systems, and communication systems. Additionally, these connectors can be found in military vehicles, missiles, aircraft, and space exploration systems. The 926495-4 backplane connectors have also been used in medical device designs, in telecommunications applications, and in industrial control systems, among other applications.

The wide range of applications for the 926495-4 connectors is largely due to their robust design. These connectors are designed with spacing optimized to reduce the risk of crosstalk between adjacent signals. Additionally, a variety of contact types are available for specific applications. The signal contact is designed for direct contact with the mating pin, while the coaxial contact is ideal for coaxial cables. Furthermore, the small size of these connectors makes them suitable for densely packed backplanes and tight panel cutouts.

Working Principle

The 926495-4 backplane connectors feature three contact types for transmission of various signal types: signal, coaxial, and power. The signal contact is designed with half-pitch or differential signal transmission, and features single or double contact points. The coaxial contact is designed for single, twisted-pair, or miniature coaxial cables, and is equipped with a threaded connection for secure connections. The power contact is a press-fit type for power transmission, and also features a single contact point.

All of these contact types are designed with a specific pitch, which is the distance between two points on a square or rectangular grid. The signal contact features a 2mm pitch. The coaxial contact features a 4mm pitch with a threaded connection for secure mating. The power contact is designed with a 2mm pitch, featuring a press-fit connection.

The 926495-4 backplane connectors are designed to withstand shock and vibration, and feature bright tin plated contacts with gold plated contacts for improved durability and corrosion resistance. The connector design features an anti-vibration lip that helps protect the contacts from shock and vibration. Additionally, the connectors are rated for temperatures up to 125°C, and feature a floating-pin design that compensates for thermal expansion.

Conclusion

The 926495-4 backplane connectors are a versatile connector type that is designed to meet the rigorous demands of the aerospace industry. These connectors are designed for high speed, high reliability, and low electric cross-talk. The connector design features several contact types, as well as a variety of spacing options to reduce crosstalk between signals. Additionally, the connectors are designed to withstand shock and vibration, and are rated for temperatures up to 125°C. These features make the 926495-4 backplane connectors suitable for a wide range of applications, including avionics systems, military vehicles, missiles, aircraft, and space exploration systems.

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