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D-sub, D-Shaped connectors are designed to provide reliable, secure connections for a variety of applications, from basic telephone and power connections, to sophisticated communications and medical systems. D-sub housings are characterized by their distinctively L-shaped body, which can be found in over sixty variants. D-sub housings primarily consist of two single-piece parts attached in a half-moon configuration. The two halves of the housing feature an array of pins on one side, while the other side consists of a matching array of female sockets. The two parts are secured together using screws, nuts, or rivets.

The most common type of housing, often referred to as a \'female\' housing, contains widely spaced pins that can accommodate a variety of different-sized contacts. This arrangement allows for the connection of multiple wires, pins, and components securely within one housing. The second type of housing, the \'male\' housing, features closely-spaced contacts. Typically used in applications where space is at a premium, the male housing accommodates smaller diameters of contact than the female style.

The most common application for D-sub housings is in communications, audio, and video applications. D-sub housings are also often used in industrial equipment, consumer electronics, and computerized technology. Most notable among these applications are computer peripheral connectors, such as keyboard and mouse connectors. D-sub housings are also used in military and medical applications.

The working principle of D-sub housings is fairly straightforward. The pins on the female housing securely connect with the contact sockets on the male housing, creating a mechanical and electrical connection. Depending on the application, different contact types can be used to create a more efficient connection. For example, soldered contacts are commonly used in applications that require a higher degree of reliability, while quick-connect contacts are often used in applications where frequent connection/disconnection is required.

In conclusion, D-sub housings are an integral part of electronic systems in a wide variety of industries. Their unique L-shaped design allows for reliable and secure connections, while their versatile contact arrangement allows them to be used in applications that require a variety of different contact types. Thanks to their reliable design and ease of assembly, D-Sub housings have become the go-to solution for reliable connections.

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