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D-Sub connectors, otherwise known as D-Shaped connectors, are a type of electrical connector with characteristic D-shaped metal bodies. The contact pins and sockets are located along the inside of the D-Shape, creating an efficient and reliable connection when mated with an appropriate partner. Bearing similarities to other wiring formats, such as USB and HDMI, D-Sub connectors are used for applications with multiple signals routed in a single connector. These applications include industrial control, medical, automotive, telecommunications, data and consumer electronics. Thanks to their reliable connection, D-Sub connectors have become one of the most widely used in electrical systems. They can be used in almost any environment due to their reliability and resilience.

Aside from connectors, D-Sub metal bodies also include various accessories such as hoods and backshells. A backshell attaches to the rear of the D-Shaped connectors, with strain relief at the contacts allowing the wires to bend and twist safely. It also provides a degree of environmental protection, since it helps to seal the contacts against water, dust, and other contaminants. As a result, it helps protect the connector against corrosion, and ensures the connector can last for an extended period.

Hoods are the plastic components used to enclose the connector. They are designed to click into place and provide additional protection for mated connectors. Many hoods also come with an external key to prevent mating with an incompatible connector. When coupled with a backshell, extra levels of insulation and protection are provided, to ensure the application is reliably used for its intended purpose.

As one of the most reliable electrical connections, D-sub connectors are accompanied by a number of backshells and hoods to ensure the connection is sealed and safe from environmental contaminants. A wide range of accessories is available to meet the demands of different applications, helping to secure the integrity of the connection and maintain its reliability. As a result, D-Sub connectors with the appropriate backshells and hoods have become a highly popular choice for a variety of applications.

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