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Rectangular connectors, also known as headers, male pins, are used to connect two butting electric connections by means of a self-locking or fastening mechanism. The components of rectangular connectors consist of a fixed female connector and a loose male plug. Female connectors are usually installed in the wiring harness devices, while male plugs are often used for flexible wiring harnesses. The basic function of rectangular connectors is to form a relatively fixed connection, while providing a flexible connection when necessary.

The components of rectangular connectors are mainly composed of a shell, a mounting bracket, a contact, a rubber seal, a nut, and a metal shield. The shell is a plastic box-shaped structure that is mainly responsible for protecting the interior and providing strong support for the components. The installation bracket is responsible for connecting cables and inverters, and also provides an interface for the male plug. The contact is a small device used to transmit power signals and it is the core component of the entire rectangular connector. The rubber seal is used to provide a reliable sealing performance when the male plug is attached. The nut is used to stagger the contact by means of a fastening mechanism.

Rectangular connectors can be used in a variety of applications. In telecommunications systems, they are used to transmit audio signals, power signals, and data signals. In electrical systems, they are used to connect wiring harnesses, fuse circuits, motors, address switches, relay drivers, inverters, remote switches, and more. In network communication fields, they are widely used to transmit data signals of various protocols. In the computer field, they can be used to connect cables between peripheral devices and motherboards, hard drives, and more. In the medical industry, they are used to connect various monitoring signals, data signals, and medical imaging equipment.

The working principle of rectangular connectors is based on the interaction between the contacts of the plug and the socket. When the male plug is inserted into the female socket, the contact is locked by a fastening mechanism which prevents accidental separation. When the two sides are connected, the plug and socket contact each other, forming a pathway for the flow of voltage. The tight connection of the contact and the high reliability of the connector ensures the stable transmission of electrical signals.

To ensure the safe and reliable use of rectangular connectors, it is important to pay attention to the specific parameters of individual connectors. Pay attention to the number of contacts, the insertion and extraction force, the contact area, the contact resistance, the insulation resistance and the mechanical strength. Careful examination and selection of the connectors can ensure the quality and reliability.

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