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D-Sub, D-Shaped Connectors – Backshells, Hoods

D-sub backshells, also known as D-shaped connectors, are used for a variety of applications, ranging from computer and communication equipment to industrial and automotive applications. They are made from a variety of materials and provide electrical contact between two surfaces.

The design of the D-sub backshell is based on the shape of the letter D or Delta, hence its name. The contacts are typically made of metal, but can also be made of plastic or other non-metallic materials. The contacts are attached to a housing, generally made of metal or plastic, and fastened together with screws, rivets, or adhesive. The contacts usually have a rectangular shape with rounded edges, but other shapes and sizes are available.

There are two basic types of D-sub backshells: straight and elbow. The straight backshell is used in applications where there is a regular mating pattern, such as in networking equipment or computer motherboards. The elbow backshell is used in applications where the mating pattern is 90 degrees angled, such as in automotive or industrial applications.

The application and working principle of a D-sub backshell is relatively simple. The contacts are typically able to accept both male and female connectors, and once the connector is inserted all the way into the backshell, the connector’s male and female contacts are connected. This allows electrical current to flow freely between the two surfaces, providing a secure and reliable connection.

The design of D-sub backshells provides a number of advantages, including durability, low cost, and ease of installation. The materials used in the construction of the backshells are usually strong and durable, ensuring that the connections will remain secure even after long periods of use. Another advantage of the D-sub backshell is its low cost; since the material used is usually inexpensive and readily available, the cost of the backshells is usually quite low.

In addition to the basic design, there are a number of other features available for the D-sub backshell, such as a strain relief, waterproofing, and slotting. The strain relief prevents the wires from being inadvertently pulled out of the backshell. Waterproofing ensures that the connector will remain watertight, even when exposed to moisture or other liquids. Slotting is an optional feature which provides a convenient way to attach the backshell to the mounting surface.

Overall, D-sub backshells are an excellent choice for a wide range of applications, from networking equipment and computer motherboards to industrial and automotive applications. Their low cost, durability, and ease of installation make them a popular choice among engineers and technicians. Their design provides reliable electrical contact, making them an ideal solution for a variety of applications.

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