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Rectangular Connectors - Headers, Male Pins, are often used to provide electrical interconnects between boards by connecting two interface components together. The most common form of rectangular connector is the header, but there are a number of other connectors and terminal blocks that all fall into this category. In this article we will take a look at the different types of connectors, their applications, and their working principles.The most common type of rectangular connector is the header, which is a male connector with a single row of pins. These headers are available in a variety of sizes and pin configurations, as well as varying voltage and current ratings. The most basic types of headers are single row, right angle, and vertical orientation versions.The pins in a header have a small diameter and are spaced equally apart, with a lip or flange on the head of the pin for a better electrical connection. The primary use for headers is for interconnecting electrical components, such as through-hole boards, daughter cards, and bus-bars. In addition, headers can be used for edge mount connections to a PCB, as well as for other types of board connections.Right angle headers are used when space is limited and the pins need to be close to the edge of a surface. These headers are designed with pins at a right angle to the base of the connector, where the user then attaches the connector to the board.Vertical orientation headers are similar to right angle headers, but the pins are perpendicular to the base of the connector. These are often used in applications where the connector needs to be securely held in position on the card.Terminal blocks are also a type of rectangular connectors. These are used to securely hold two or more electrical terminals in place. The terminals are held in place by a mechanical or chemical bond, which ensures that the connected components remain in contact. Terminal blocks are often used in power supplies and motors, where a reliable connection is needed.In general, all rectangular connectors are designed to create a reliable electrical connection between two components. The design of the connector is based on the application and the number of connections required. As with any electrical connection, it is important to ensure the safety of the components by using the correct pins, voltage, and current ratings.In addition to headers and terminal blocks, there are a number of other rectangular connectors. These include card edge connectors, terminal strips, and pluggable connectors.Card edge connectors are similar to headers, but are used to create electrical connections to a printed circuit board. The edges of the card are capable of providing current or voltage paths, and the card edge connector is designed to make the connection between the PCB and the component.Terminal strips are designed to provide an easy way to make multiple electrical connections. These strips are typically used when multiple wire terminations need to be connected at the same time.Pluggable connectors are designed to easily connect components together without any soldering or drilling. The connectors have pins or posts that can be pushed into the component, creating a safe and reliable electrical connection.In conclusion, rectangular connectors - headers, male pins - are used to create electrical connections between two components. These connectors come in various sizes, shapes, and configurations, depending on the application and the number of connections required. The design of the connector is based on the application and the number of connections, while the pins used should have the correct voltage and current ratings for safety.

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