51940-042LF

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The 51940-042LF connector, also known as the SIR connector, is a specialized application of a backplane connector, or multiple backplane connectors. In this system, two or more cables are connected to both a backplane and to each other, providing an electrical connection between components that are physically separated by a distance. This type of connector is mainly used to connect different boards within a single system or equipment, or to interconnect boards that are in multiple systems.

The 51940-042LF is a right angle plug based connector, typically designed to fit a .100 spacing between pins. It is designed for use with thru-hole designs, where an additional height at the rear of the PCB is acceptable. An insulating sleeve is included with the connector for protecting the connecting wires from static and mechanical interference.

The SIR connector is also commonly used for connecting various signals and components on printed circuit boards (PCB). It can also be used for connecting various external cables, such as serial and peripheral cables. Because of its unique configuration, the 51940-042LF can be used to interconnect boards in different applications, for example, in parallel processing applications, where energy efficiency and reliability are key criteria for system performance.

The working principle of the 51940-042LF is based on the transfer of electrical signals through a contact spring. This type of connector is designed to minimize voltage drops compared to traditional connections, and provide a high level of flexibility when connecting various components. A special feature of the 51940-042LF is the incorporation of an integrated busbar, which is a conducting material that helps facilitate the transfer of electrons between the two contacts.

There are a number of features and specifications to consider when selecting a 51940-042LF connector, such as contact resistance, current rating, seizure force, mating cycles, operating temperature, and termination type. The 51940-042LF is a highly reliable and robust connector that can be used in a variety of applications. It is ideal for applications such as printed circuit board assemblies, point-to-point wiring, signal routing, and as part of a larger backplane connection.

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