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D-Sub Connectors

D-Sub connectors are a type of electrical connector used to connect two mating cables or ports on electronic equipment. Commonly referred to as “15-pin” or “25-pin” connectors, they are one of the most commonly used types of connectors in the world. In this article, we will discuss the 303W3CSXX69F40X application field and working principle.

Application Field

The 303W3CSXX69F40X is a type of D-Sub miniature connector, suitable for applications requiring high reliability and multi-pin configurations. It has the same basic electrical characteristics as other D-Sub variants, but differs from the other varieties in its higher packing density. It is widely used in data communications or instrumentation applications, especially in microwave test systems, medical imaging systems, and TV broadcasting systems.

Working Principle

The 303W3CSXX69F40X consists of a housing and multiple contacts. The housing is specially designed to accommodate the required number of pins and keep them in position. The contacts are inserted into the housing and consist of a stamped and formed metal part with insulation displacement contact (IDC) or press-fit contact (PFC). IDC contacts are provided for simple and secure wiring, while PFC contacts are used for applications that require more reliable connections.

The contact is guided in a loose fit within the housing, ensuring that no physical contact is made until the male connector is fully inserted into the female connector. The connector contains a dielectric material which provides insulation between the contacts. When the male connector is inserted, the contact springs are depressed and the electrical connection is made.

Conclusion

The 303W3CSXX69F40X is a type of D-Sub connector used for a variety of electronic applications. It is suitable for applications requiring high reliability and multi-pin configurations. This connector consists of a housing and contacts, and the contact is guided in a loose fit within the housing, ensuring that no physical contact is made until the male connector is fully inserted into the female connector. The connector contains a dielectric material which provides insulation between the contacts.

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