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Rectangular connectors are generally referred to as headers or male pins. There are three different types of rectangular connectors available: vertical headers, angled headers, and horizontal headers. Each of these types have different application fields and working principles.

Vertical headers are the most popular type of rectangular connectors. They have a 180-degree angle, which makes them easy to connect and disconnect. They are used in applications such as signal and power connectors for printed circuit boards. The pins of the vertical header are usually made of brass and can be either male or female. The male pins are used to make electrical connections between two components while the female pins are used as the mounting device for the header.

Angled headers are also known as single-row or double-row headers. The angle of the header can be adjusted from 45-degrees to 180-degrees depending on the application. This type of connector is used for a variety of applications such as power, battery, and signal connectors for printed circuit boards. Like the vertical headers, the pins of the angled header are also made of brass and can be either male or female.

The final type of rectangular connector is the horizontal header. They are similar to vertical headers but the angle is only 90-degrees. This type of connector is used in applications that require a higher density of connections such as telecommunications. The pins of the horizontal header are usually made of copper or aluminum and are male.

For all types of rectangular connectors, a working principle is used to ensure a secure connection. This includes an insulator, a conductor and a return conductor which provides the electrical current to the connector. When the male or female pins of the connector are connected, the conductors create a direct electrical connection between the two components. This allows for the transfer of electrical signals from one component to another.

In conclusion, rectangular connectors are used for a variety of applications and have different working principles. The three types of rectangular connectors are vertical headers, angled headers, and horizontal headers. Each of these connectors have male or female pins that are used to make an electrical connection between the components.

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