DBM9W4SN

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D-Sub Connectors are used for connecting wires and hardware components. They come with various sizes and shapes in addition to different contact arrangements such as single-, double-, and triple-shield as well as low profile. The D-Sub Connector family includes DB9W4SN, which is highly popular due to its design and wide application field. It is a double-shield type and is commonly used in computer networking, commercial households, and various industrial applications. This article will discuss the application field and working principle of the DB9W4SN connector.

The DB9W4SN connector is a D-Sub type and is a molded type that entails contact retention components. It is designed with an outwardly curved, narrow plug housing made out of aluminum shell and thermoplastic core so that the connector can be fit for various wiring systems. The DB9W4SN features 9 contacts with a pitch of 0.050” and a strain relief that is bendable in all directions according to the environment. This D-Sub connector is highly reliable, temperature resistant, and dust-proof thanks to its integrated twin-shield within its outer shell, which consists of an EPDM rubber rope and developed aluminum foil. On the other hand, it also has a high finger protection capability due to its molded thermoplastic construction.

The DB9W4SN connector is used for a variety of purposes. For starters, it is commonly utilized in wiring systems of computers and equipment. It is used to maintain signal integrity and is highly reliable in terms of communicating signals with high frequency. This connector is also utilized in automobile and aerospace designs in order to make interconnections between electrical or computerized systems. Additionally, it can be used in a variety of RF/microwave systems and industrial robotics for high-speed data transfer with low attenuation levels.

At the heart of the performance and application of DB9W4SN connectors lies its working principle. This connector’s outer shell is insulated with high surface resistance, thus forming a protective and reliable outer protective shield for the signal transmission. The four pins are arranged in a row along the middle of the plug and allow the internal contacts to enter the grounded return plane. Thanks to the detachable rubber rope, the cable shielding becomes reinforced thus providing maximum attenuation. The internal contacts also provide low contact resistance due to their plated contacts and gold-plated strike pins. Moreover, the design of its plug ensures that the contact points are perfectly aligned for accurate electrical transmission.

In conclusion, the DB9W4SN is a highly versatile and reliable D-Sub connector that is widely used in a variety of applications. Its design is based on its outer shell and traditional twin-shield configuration, which provides efficient signal transmission with a high level of immunity from EMI/RFI interference. The inner part of the connector is designed to keep minimal contact resistance, ensuring precise electrical performance. Thanks to its versatile use, this type of connector is very popular in many industrial and commercial applications.

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