1218637-1

ARINC 1218637-1 is a type of backplane connector designed for aerospace applications. It is also commonly known as a midplane connector, due to its arrangement between the frontplane and the mainplane. The 1218637-1 is a two-piece connector, with a low-cost crimp or press-fit contact system. It is intended for space-constrained applications where both modularity and durability is critical.

Application Field

The 1218637-1 is primarily used for connecting parallel board stacks in an array. Typical applications for this connector include mission-critical systems for aircraft such as engines and flight-control systems, as well as communication, navigation, and avionics systems. As these systems often contain a large number of parallel boards, the 1218637-1’s low-profile and reliability is highly advantageous compared to traditional parallel board interconnects.

Working Principle

The 1218637-1 utilizes a low-profile, two-piece connector system for parallel board interconnects. One size of connector has four contacts – two power and two signal – while the other has three, in a 2-1-2-1 configuration. This allows for large numbers of boards to be connected in a space-efficient and modular form-factor, while maintaining reliable connections. The contacts themselves are comprised of machined pins or crimp-fit sockets, made from high-temperature-resistant alloys.

As the 1218637-1 system requires two pieces of connector for each board, the contacts are connected with a latch that is locked in place when the connectors are mated. This latch ensures consistent vibration loads and also provides accurate alignment of the contacts. The total force required to separate the two pieces is also limited, to ensure that they can be easily disconnected if needed.

The 1218637-1 also features a feature called retention-force feedback. This system senses if the connection between two boards is successfully mated and allows for clear and reliable feedback to the user. The connectors also have a durable housing which provides effective protection against the elements and foreign objects.

Conclusion

The 1218637-1 backplane connector is a reliable and space-efficient solution for connecting parallel board stacks. It features a low-cost two-piece crimp or press-fit contact system, reliable latches, and a durable housing for effective protection against the elements and foreign objects. Due to its arrangement between the frontplane and mainplane, it is also known as a midplane connector. With its reliable performance in mission-critical aerospace systems, the 1218637-1 is an excellent choice for reliable parallel board interconnects.