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D-Sub connectors, also known as D-shaped connectors, are electrical connectors used to make a connection between two customized devices. They are available in various sizes which can easily accommodate the different pitches and mounting requirements of computers and other electronic products. They are ideal for use in a wide range of applications including computers, electronic gaming, and medical.

D-Sub connectors contain three basic components, a dielectric layer, an insulation layer, and contact points. The dielectric layer is an insulating material which is used to separate the contact points from each other\'s ability to conduct electricity. This layer ensures a safe and reliable connection between the two devices. The insulation layer, usually made of plastic, serves to protect the contact points from heat, static, and oil. The contact points, also called pins or terminals, are the parts of the D-Sub that actually make contact with each other and transfer current.

The contact points of a D-Sub connector come in different shapes and sizes, depending on their application and purpose. The most common are round shaped contacts known as round pin connectors. These contacts are usually made of brass and have a smooth finish which allows an easy and secure fit. Most round pin connectors have the same diameter and therefore all pins must line up in the same amount of space.

Hammers are also available for D-Sub connectors. These are designed to be used together with round pin connectors, providing a stronger and more reliable connection. They also allow a variety of shapes and sizes to be matched, enabling the user to select the best configuration for their particular application.

Another type of contact is the angled contact. This type of connector is designed to be used with specific angles or curves, depending on the application. Usually, these contacts are used in tight spaces where the angle of the connections needs to be precise and the assembly needs to fit together accurately.

When it comes to working principles, D-Subs operate by providing an electrical connection between the pins. When plugged in, an electric current passes through the pins, allowing the devices to communicate with each other and exchange data. Some types of D-Subs also come with additional parts, such as screw terminals, that allow for safer and faster connections.

Overall, D-Subs are versatile connectors that are perfect for a wide range of applications. With their simple and reliable construction, they are a popular choice for computers, gaming, medical, and any other connectivity needs. The variety of shapes, sizes, and types available ensures that there is a connector that will fit your needs perfectly.