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Rectangular Connectors – Arrays, Edge Type, Mezzanine (Board to Board)

Rectangular connectors are commonly used to provide electrical connection and mechanical support between two substrates, like two printed circuit boards. This type of connection is known as a board-to-board connector and is often seen in computer systems or other electronic equipment.

Most rectangular connectors consist of two elements: the plug (or male) and the receptacle (or female). The plug has the mating portion of the electrical contacts and the receptacle has the electrical contacts that are mounted on the board. The two elements come in many shapes and sizes depending upon the application.

Among the various types of rectangular connectors, there are arrays, edge type and mezzanine (board to board) connectors.

Array connectors are used in applications where it is necessary to provide a high density of electrical contacts that are reliably connected. Arrays often use standard contacts that are mounted in the connector in a particular arrangement. The contacts usually have insulation that provides voltage and current ratings, as well as preventing arcing. Coolant or soldered connections may be used as well.

Edge type connectors are characterized by having one or two rows of contacts and mating sides that are connected using a metal cover. Edge type connectors are one of the simplest and most cost-effective solutions when it comes to connecting two boards. This type of connector typically requires soldering, and may use pins or sockets.

Mezzanine (board to board) connectors are used when it is necessary to connect multiple boards at once. This type of connector consists of two mating parts: the plug part and the receptacle. The plug and receptacle are usually designed to fit tightly together so that no air can pass, preventing dust or debris from entering the connection. The plug part contains the electrical contacts and the receptacle is usually connected to the board.

Mezzanine board to board connectors are typically used for signal and power connections between multiple boards in close proximity. Connectors are available in a variety of sizes and configurations and usually require soldering.

The primary purpose of using rectangular connectors is to provide a reliable electrical connection between two substrates. The type of connection, size and density of contacts, and contact arrangement will determine the type of connector needed for the application. Choosing the right connector can help ensure the highest performance and reliability.

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