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D-sub, D-shaped connectors and backshells, hoods are electrical connection devices designed to provide robust mounting and intricate wiring solutions. They are typically used in applications where high-reliability is required, such as those found in the aerospace, automotive and medical industries. The connectors offer both solder contacts and crimp contacts depending on the requirements of the application.

The commonly-used D-Sub connector housings come in three sizes with 15, 25 and 37 contacts or more. The number of contacts ranges from a few to several hundred depending on the particular application. The layout of a standard D-sub connector follows a common pattern, with the contacts arranged in rows and columns. The contacts may be medial, ports or solder.

The housings are typically made from plastic or metal, and different types of connectors are available to meet environmental requirements, such as extra sealing, dust protection and covering against water or other liquids. The shapes of the housings can be customized to meet specific designs. The housings can be provided separately or with standard cable assemblies.

The main function of the backshells used with the original D-Sub connector is to provide a means of cable retention, as well as strain relief. The backshells are typically constructed of die-cast zinc or aluminum and may be provided with a number of different materials and coatings. The size of the backshells is dependent on the size of the connector, as well as the type of jacket on the cable.

To provide environmental protection for the conductors, hoods may be used with the connector. These are similar to the backshells in that they typically provide strain relief and cable retention, but are designed to provide additional protection for the contacts inside the connector. The hoods are typically plastic or metal and may be provided with rain covers and snow shields when necessary.

For applications where the cable routing is critical, the connectors may also be used in combination with curved and flat mounting brackets. The brackets are typically provided with adjustable mounting holes or provided with a variety of mounting slits for specialized cable routing.

In summary, D-sub, D-shaped connectors and backshells, hoods are electrical connectors with a variety of designs to meet the needs of various applications. The connectors provide robust electrical connection solutions with high-reliability, as well as strain relief for cables. The number of contacts and configurations depend on the application, as well as the type and material of the housings. The backshells and hoods provide additional environmental protection and cable retention. When necessary, mounting brackets may also be used.

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