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Rectangular Connectors - Headers, Male Pins, application field and working principle. 

Connector is a kind of connector used in communication and control, and it is widely used in modern electronic equipment. The rectangular connectors consist of headers and male pins, and the function and application scope of the products have large differences.     

A header is a rectangular connector with multiple pins and terminals. The connection between the terminals is made by a plug. A male pin is a rectangular connector with two pins or more that can plug into a header. The two pins or more connect to each other and the pin closest to the connector body has a locking mechanism. They are used to secure the module to the system.

The application of rectangular connectors - headers and male pins is mainly in electronic control devices, communication equipment and signal equipment. Due to their wide range of applications, various series and models of rectangular connectors are constantly being developed. Such as: 900 series connector, 945 Series connector, 901 Series connector, 976 Series connector and so on. These series connectors are specially tailored to meet the requirements of various fields. For instance, 900 series connector is mainly used in auto-machine, 945 Series connector is mainly used in the line connection of computer, 901 Series connector/976 Series connector is specially designed for medical equipment and so on.

The working principle of most rectangular connectors is same, regardless of the series. The male pin is inserted into the header and inserted until the center of the male pin is above the center of the header and the end of the male pin is in contact with the header. When the male pin is inserted into the header, the internal spring clip in the header will firmly cling to the male pin and achieve electrical contact between them. After the interference is completed, the contact point of the header and the male pin is firmly connected.

In summary, rectangular connectors are widely used in electronics and communication control devices. Through headers and male pins, the connection of electronic components can be realized, and the points of the two connection can be firmly connected. Different series and models of rectangular connectors are designed for different application fields. The working principle of most rectangular connectors is similar, and their internal structure mainly includes the spring clip in the header to ensure reliable connection with the male pin.

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