71781-004

The 71781-004 is a family of D-shaped connectors--also known as Centronics connectors--commonly used in data communications and digital systems. It is an 8-pin connector with four pins on each side shaped in a D shape, making it an ideal choice for dense applications where space is constrained. Understanding the application field and working principle of the 71781-004 is important when selecting a connector for a specific need.

Application Field

The 71781-004 is suitable for applications which require the transfer of electrical signals between two devices or components. It is commonly used in computers, printers, peripherals, and other digital systems, as the D shape allows for a highly reliable connection between two devices. This connector is often used in data communication, as it allows for the transmission of electrical signals over a short distance with minimal interference or signal loss. In addition, the 71781-004 is also suitable for use in medical, industrial and military applications.

Working Principle

The 71781-004 connector operates on the principle of transmitting electrical signals over two insulating conductors, each of which contains four pins. Each pair of pins is electrically linked to the opposite side, and when the connector is inserted into its mating receptacle, a complete electrical circuit is formed. This connection is then electrically sealed to ensure that no voltage can enter or exit the system without passing through the connector.

When the connector is inserted, the four pins on the outside of the connector are in contact with the receptacle’s outer four pins. At the same time, the inner pair of pins enter the receptacle’s four inner pins, which complete the electrical circuit. This connection provides a reliable pathway for the electrical signals to travel between the two devices, ensuring a reliable transfer of information.

Conclusion

The 71781-004 is a reliable and commonly-used D-shaped connector, suitable for applications which require the transfer of electrical signals between two devices or components. Its D shape ensures a reliable connection between two components, and it is suitable for use in data communication, medical, industrial and military applications. Understanding the application field and working principle of the 71781-004 is important when selecting the right connector for a specific need.