51940-219LF

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Backplane connectors are specialized interconnects used as board-to-board links in electronic systems. Among them, 51940-219LF is a very common type for data transmission and power supply.

Application Field of 51940-219LF

The 51940-219LF connector is particularly suitable for use in environments with high vibrations and dynamic movements. It can also be used in in-vehicle bus systems, especially in automobiles, heavy vehicles, military installations, aerospace and medical applications.

This model of connector can also be applied in factory automation and automated testing, and its proven reliability makes it a top choice for production lines. Moreover, its low profile configuration and small solder tail design have made it attractive to be used in portable electronic products.

Working Principle of 51940-219LF

51940-219LF consists of two independent, ‘pogo’ style contacts, a male contact located in the post, and a female contact located in the receptacle. This connector is characteristic for having double-ended contacts.

The insertion forces of 51940-219LF are about 0.3N, and the light force can provide effective electrical connections. It will maintain a high degree of contact resistance after plugging and disconnecting several times, to ensure a stable signal transmission. The contact structure of 51940-219LF follows the principle of compliance, with its contact tips having the flexibility to provide the necessary amount of spring force to ensure a reliable and robust connection.

The 51940-219LF socket and pin also share a polarization feature. The pin has an asymmetrical body shape, and the socket layout requires the pin to be inserted only in the correct orientation, reducing assembly errors. The socket and pin can be configured in both vertical and right angle orientations. It also provides a high-density design to save space.

In conclusion, the 51940-219LF is ideal for backplane applications due to its unique dual contact structure, light insertion forces, high reliability and wide application range.

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