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What is the D-SUB Connectors?

2025-05-16

The D-Sub connector, also known as the D-subminiature connector, is commonly referred to as the VGA (Video Graphics Array) interface or the DB connector. Its name originates from the distinctive D-shaped metal shield that envelops the connector, giving it a vertical orientation that resembles the capital letter D. As an analog signal interface, it adheres to a structural standard that varies in the number of pins or sockets to accommodate different connectivity requirements.

At the time of its inception, this interface was regarded as compact, hence the term “subminiature.” The connectors are designed in both male (plug) and female (socket) configurations. Each connector in this series is designated by a code starting with “D,” followed by another letter that denotes the interface size, a number indicating the count of pins or sockets, and the letter “P” for male or “S” for female. ITT Cannon further developed a miniaturized version of the D-sub connector, termed the “Micro-D,” which is half the length of the standard D-sub connector.
In contemporary technology, D-SUB connectors are perceived as relatively large. However, their robustness and durability make them well-suited for demanding environments. Additionally, their compatibility with legacy equipment ensures their continued use in factories, manufacturing facilities, and industrial settings.

Initially, the D-sub connector was one of the smallest available for computing applications. Over time, as connector technology advanced, it came to be associated with “large” within the industry. Newer connectors, with their sleek designs, versatile performance, and adaptability to various product forms, have overshadowed the D-SUB connector. Yet, the D-SUB connector has endured due to its shielding cover and fastening screw design, which ensures high product quality and enhances durability. Consequently, D-SUB connectors remain valuable in the realm of electrical connections.

As a serial communication interface, the D-sub connector has been extensively used to connect peripheral devices such as printers, scanners, mice, joysticks, and personal computers. It also plays a significant role in industrial transmission applications.

SHENZHEN JRKCONN ELECTRONICS CO.,LTD

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What is the D-SUB Connectors?

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