747945-1

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D-sub connectors (747945-1) are a common type of electrical connector that are often found in computers and other electronic equipment. They are typically used for connecting peripheral devices, such as printers, monitors, and keyboards, to a computer\'s system board. D-sub connectors are also popular for connecting various other types of audio/video equipment and for general hobbyist use in projects involving circuitry.

A D-sub connector is distinguished by the shape of its pins or sockets, which form a "D" shape. The size and number of pins can vary, but most are 9-pin, 15-pin, 25-pin, and 37-pin. Each type of connector has a specific application field.

The 9-pin connector, also referred to as the DE-9 or DB-9, is commonly used for serial connection. This type of connector is used to connect modems and other serial devices to a computer. The 15-pin type is used to connect VGA video cables to monitors and video cards. The 25-pin type is used for connection of a parallel printer to a computer and is also known as an IEEE-1284 connector. The 37-pin type is used in high-speed network connections.

All D-sub connectors operate on the same principle—the mating of two connectors with pins or sockets that make electrical connection. The connectors are typically male and female, with one connector having male pins and the other having female sockets for the pins to fit into. The electrical contacts are spring-loaded, allowing for a secure fit when the connectors are mated.When matting the connectors, the pins are notched in such a way that they avoid electrical contact if they are inserted improperly. This helps to prevent damage to the equipment, as well as ensuring that the connections are correct and that the data is not corrupted.

D-sub connectors are designed for ease of use, durability, and high electrical performance. They can withstand temperatures up to 125 degrees Celsius and can be mated and unmated thousands of times. The design also allows for a high signal-to-noise ratio, which in turn helps minimize interference and increase data transfer speeds.

D-sub connectors are widely used in the telecommunications, medical, automotive, aerospace, military, and consumer electronics industries. They are available in a variety of configurations to suit different needs. They are a reliable and cost-effective way of connecting devices, and are often much more affordable than their alternatives.

D-sub connectors are a very versatile and reliable type of connector. They are easy to use, highly durable, and capable of providing reliable electrical connections. With their wide range of applications, they are a common choice for connecting electronic devices and are often used for both computers and audio/video equipment.

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