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D-Sub, D-Shaped Connectors - Contacts

D-sub connectors are connectors with a characteristic "D" shape. They are sometimes referred to as D-Sub connectors or just D-Subs. They are typically used for computer and telecommunications purposes, such as connecting display devices like digital TVs to external video sources, and for connecting computer air-flow control systems to computer memory banks.

D-sub connectors consist of two or more sets of mating contacts or terminals, usually surrounded by a metal shell. Each contact set is generally known as a pin or socket, and the terminals are usually industry-standardized. Common contact sizes for D-subs include 9, 15, 25, and 37 for low-voltage applications, and 50, 68, and 100 for higher voltage applications.

The contacts are made from materials including copper alloy (typically copper tin, nickel plated), phosphor bronze, and stainless steel. The bodies are typically zinc-plated steel, but can also be made of plastic. There is also a type of D-sub known as a "high-speed" connector, which has a higher contact count and superior screening qualities.

The most common use of D-sub connectors is in the computer and communications industry, as they are much smaller than other types of connectors. They can be used for connecting computer components such as hard drives, motherboards, and peripheral devices, as well as networking and communications equipment. Some of these devices may require special adaptations (such as adapters) in order to be used with D-sub connectors.

In terms of working principle, D-sub connectors use a small spring contact to maintain contact with the connector. This allows them to handle both current and voltage fluctuations with ease, whereas other types of connectors may require a more complex system to maintain contact. The connection is secured by the spring contact, which can be easily changed or replaced as needed.

D-sub connectors are typically used for smaller components, such as keyboard and mouse connectors, Ethernet cables, and cable TV connections. They are popular because of their size and versatility, and because they are easy to install and remove. Additionally, they are also relatively inexpensive, making them an ideal choice for most computer and communications purposes.

In summary, the 09670007276 application field and working principle of D-sub, D-shaped connectors is for the connection of computer and communication equipment, including hard drives, motherboards, peripheral devices, and networking and communications equipment. The contacts are typically copper alloy, phosphor bronze, or stainless steel, and the body material is typically zinc-plated steel or plastic. The working principle is that a small spring contact maintains contact with the connector, allowing them to handle current and voltage fluctuations with ease. D-sub connectors are popular because of their size and versatility, low cost, and ease of installation and removal.

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