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Rectangular connectors, also known as headers, male pins or PCB connectors, are types of connection used widely in the electronics industry to connect printed circuit boards (PCBs) in many applications. These connectors are commonly used for low-power signal, control and power applications. As the name implies, they are rectangular in shape and are available in various sizes and are often made of gold plated metal or plastic.

A rectangular connector consists of three major parts – the body, the pins or headers and the contact assembly. The body of the connector is usually made of molded plastic, which provides a secure and durable fit as well as a protective coating to the exposed metal pins or headers. The pins or headers are usually made of metal with gold or copper plating. These contacts provide a reliable and secure connection between the connector and the PCB. Finally, the contact assembly is a combination of a contact element, a spring and an outer casing. This contact assembly allows the connector to make a strong connection to the surface of the PCB.

Rectangular connectors are used in many different applications across many industries, including but not limited to automotive, consumer electronics, medical and industrial. Common applications include audio and video systems, computer and network systems, telephone systems and other electronic circuits. They are especially suited for applications where a reliable, highly secure but flexible connection is needed. In terms of power delivery, these connectors can deliver power up to several kilowatts depending on the size and configuration of the connectors.

Rectangular connectors work by making a physical electrical connection between two components. A contact between the two components is made when the pins or headers on the connector come in contact with the contact assembly on the PCB. This contact allows for electrical current to move from one component to the other. This connection is typically made using either solder or a crimp connection. Solder requires both the connector and PCB to have an exposed metal, while crimp requires the connector to have a crimp tab and the interface holes on the PCB to be crimped prior to the connector being inserted.

In conclusion, rectangular connectors, or headers, male pins or PCB connectors, are used in many applications and are capable of delivering power up to several kilowatts. They are designed to make reliable, highly secure but flexible connections, and are typically made of plastic with metal pins or headers. These connectors work by making a physical electrical connection between two components and are used extensively in the electronics industry for low-power signal, control and power applications.

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