164A19979X

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D-Sub connectors have been a popular form of electrical connection for data and power circuits for many years. The D-Sub connector has a wide variety of applications and is available in several different sub categories. The most popular of these is the 164A19979X series, which is used in computing applications to connect cables or modules to the motherboard. This article will explain the application field of this type of connector, as well as its working principle.

The 164A19979X series of D-Sub connectors is designed for use with 4 or 8-contact cables or modules made up of plastic insulation-displacement contacts (IDC). These connectors are typically used in computing applications such as serial ports, parallel ports, and USB ports, as well as in telecommunications systems. As they are made up of multiple contacts, they are suitable for applications that require several signal paths for data and power connections.

The 164A19979X series of connector comes in two variants, the 5 and 9-pin versions, depending on the application. Both variants come with an external housing for mounting the connectors, as well as an IDC contact block for connecting the cables or modules. The contact block is typically made of a copper alloy, which ensures a reliable electrical connection over a long period of time. When using the 5-pin version, there is an internal locking mechanism which ensures that the contact blocks are secure in the housing.

The working principle of the 164A19979X series of D-Sub connectors can be explained by considering the two main parts, the contact block and the external housing. When the contact block is inserted into the housing, the contacts make an electrical connection with the required device or cable. This connection is stimulated by the force of a leaf-spring within the contact block. When the contact block is inserted, the leaf-spring contacts a small metal surface on the other side of the contact block and creates the electrical connection.

In addition to providing a reliable electrical connection, the 164A19979X series of D-Sub connectors also provides a strain relief function. This feature ensures that the cables or modules do not suffer damage when the cable is moved or pulled. The strain relief is achieved by a spring-loaded plastic contact within the housing which contacts an external panel. This contact helps to distribute the force evenly across the panel, thus ensuring that the cables and modules are protected.

Overall, the 164A19979X series of D-Sub connectors is a reliable, cost-efficient connection option for computing applications, such as serial, USB, and parallel ports. The contacts within the contact blocks are made up of robust copper alloy to ensure lasting connections over a long period of time. The external housing of the connector also provides a strain relief function, ensuring that the cables or modules are not subject to undue amounts of force when the cable is moved or pulled.

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