03-12-2015

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Rectangular connectors are among the most popular types of electrical connectors used today. They differ slightly from conventional round connectors in that they feature rectangular housings to accommodate the conductive pins and sockets that make up the contact system. The housings themselves, typically made from plastics, are what give the connectors their distinct shape and form, making them easily recognizable. The most significant advantages of rectangular connectors, aside from their distinctive shape, are their high-density contact system and versatile design.

Applications for rectangular connectors are extremely varied, and they are found in nearly every type of electronic system, from automotive and aerospace to consumer and industrial. Because of their high pin density and versatility, rectangular connectors are ideal for demanding applications where high-speed signal transmission over long distances is required. Some typical applications include computers, automotive electronics, audio/visual systems, and telecom systems.

Rectangular connectors are also designed with a whole range of features and options to fit the needs of the application. These include various pin/socket combinations and sizes, as well as the ability to configure the contact system with the same gender on both sides (shielding for flexibility). Other features include centerline offsets, mounting options, and colors.

The principle behind rectangular connectors is essentially the same as that of conventional round connectors. Basically, metal or metalized pins are inserted into the housing of the connector and engage with the contacts of the other side of the connector. The contacts come in several different varieties depending on the specific application, ranging from simple SOIC type surface-mount (SMT) parts to more complex axial and right-angle pin arrangements.

When it comes to contact materials, gold is the most commonly used due to its electrical and corrosion resistance. However, copper- or nickel-plated contacts can also be used, depending on the application. Plating the contacts is typically done in order to reduce contact resistance and, more importantly, to ensure a secure connection. By plating, the contact surface area is also increased, allowing for more efficient signal transmission.

In terms of design, most rectangular connectors feature a two-piece housing system. This housing consists of the insulative base and cover, which can be either soldered or crimped onto the wires. The connective pins are then inserted into the housing and held in place by a metal spring, which helps to ensure a secure connection. As previously mentioned, the pins and sockets can be configured for specific contact arrangements and come in a variety of sizes and shapes.

Rectangular connectors are a highly reliable and versatile type of electrical connector. They are designed with a wide range of features and options to make them suitable for use in a variety of applications, ranging from automotive to consumer electronics. Additionally, they are exceptionally easy to install and maintain, ensuring a secure connection and efficient signal transmission.

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