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Rectangular connectors, also known as "headers," are mechanical components used to connect two printed circuit boards (PCBs). The connectors are usually located at the edge of the board, making it possible for a device to be connected to another board. Headers typically consist of two parts: male pins and female ports. When male pins are inserted into female ports, the electrical signals and connection of the PC boards are completed.

Male pins are typically located on the edge of the board, while female ports are located at the bottom of the board. The pins have metal contacts that are in contact with the female ports of the board when the male pins are inserted into them. The electrical contact from the male pins to the female ports creates an electrical connection that allows for the transmission of electrical signals between the two boards.

Male pins are made of highly conductive materials such as gold, silver, or copper. The pins have an electrical contact area that must be properly aligned with the female ports in order to ensure a proper electrical connection. The contact area is usually covered with insulation such as epoxy or a special type of packaging to ensure a good electrical connection.

Female ports are made of plastic or metal material that is designed to accept the male pins. The ports are generally located at the bottom of the board and are equipped with a contact that is designed to accept the male pins. Once the pins are inserted into the female ports, the electrical connection is completed. Female ports come in a variety of shapes and sizes, with some being designed to accept multiple pins and some being designed to accept only a single pin.

The working principle of rectangular connectors is quite simple. When male pins are inserted into the female ports, an electrical connection is created between the two boards. This connection allows for the transmission of electricity and electrical signals between the boards. This is why they are often used to connect two PCBs. Rectangular connectors also offer a low-cost solution for connecting multiple devices together, since the cost of the connectors is generally lower than other types of connectors.

The application of rectangular connectors is wide and varied. They are used in a variety of devices, from home appliances and consumer electronics to industrial computers and robotic systems. They are also often used to connect two circuit boards together in order to share information. The connectors are also used to interconnect two or more devices in order to transmit data and signals between the devices.

Rectangular connectors are easy to install and use as they can be configured easily using standard tools like a screwdriver or a soldering iron. The connectors are also easy to repair if they become damaged, as they can be easily replaced. This makes them highly reliable and durable, which is why they are so widely used in many applications.

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