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D-Sub, also known as D-shaped connectors or housings, are electrical connectors that are widely used in a variety of different applications. They are popularized due to their durability, low cost, and complete range of application. This article will discuss the application fields and working principles of D-Sub housings and their components.

Types of D-Sub

There are different types of D-Sub housings available, which make the connectors suitable for a variety of applications. The two most popular types are DB-9 and DB-25, which are commonly used in computer hardware. Each type of connector has its own specific characteristics:

• DB-9 has a center-right-angled orientation and nine contacts
• DB-25 has a center-right-angled orientation and 25 contacts

The most common materials used in making D-Sub housings are plastic, alloys, and steel. Additionally, the housings can be either male or female, depending on the application.

Application Fields of D-Sub

D-Sub connectors are suitable for a range of applications. They are commonly used in the following fields:

• Computers: Since D-Subs are commonly used in computers, such as printers, GPUs, and disc drives, they can also be found inside a computer cabinet or in other areas of hardware.
• Telecommunications: D-Sub connectors are also used in telecommunications, such as in the interface between a terminal and its local operations work station.
• Industrial: This type of connector is also used in industrial equipment and can be used in the automation process. It can be used to connect the control system of an automated machine.
• Aerospace: D-Subs are often used in aircraft and other aerospace components.

Working Principle of D-Sub

The working principle of the D-Sub connector is based on electrical contact. The contact is made by two connected metallic pieces. This is done by inserting the two pieces into the leads, thereby making an electric circuit. The two metallic pieces also work as shields against the outside, reducing the probability of electric interferences.

When connected, these two pieces interact with the contacts inside the different contacts of the D-Sub, allowing the electric current to flow from one contact to the other. The current strength passing through each contact depends on the number of contacts, which can range from 9 to 25.

In general, the work principle of the D-Subs involves the use of two different metallic pieces that are held in place with a locking mechanism in order to make an electrical contact between them. This electric contact allows for the current to flow and is used in a variety of electronic applications.

Conclusion

In conclusion, D-Sub connectors have a variety of application fields and working principles. These versatile connectors are easy to use, durable, and more importantly, cost-effective. Additionally, D-Sub housings are available in different types which make the connectors suitable for different uses. With these features, the D-Sub connector is an essential component in almost any electronic device.

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