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Rectangular connectors have a wide application field and range of designs.Two-column edge type connectors are a popular choice and come in both discrete and connector panel varieties. Mezzanine connectors, used to connect two PC boards, are rectilinear shaped for use on circuit boards with parallel-aligned surfaces.

Overview

Rectangular connectors are a type of board-to-board connector system designed to interconnect PCBs without the need for soldering. These types of connectors are used in a variety of electronics assemblies to connect devices, providing a reliable electrical connection without the risk of overheating or solder fatigue.

The design of a rectangular connector typically consists of two columns of contacts, which are aligned perpendicular to the plane of the PCBs. These pins are designed to contact the pads on the two target PCBs, allowing for an electrical connection between them. This connection is often provided by a metal sleeve that fits around the pins, creating a reliable and reliable connection.

Types of Rectangular Connector

Rectangular connectors come in a number of configurations. The two most common types are two-column edge type connectors and mezzanine connectors.

Two-Column Edge Type Connectors

Two-column edge type connectors are designed to be mounted in pairs of PCBs in which the boards are placed at right angles to one another. They are available in both discrete (one column of pins per board) and connector panel (multiple column side-by-side contacts) configurations.

These types of rectangular connectors feature two columns of pins with an internal metal sleeve that slides over the pins to create an electrical connection between the two targets. One of the main advantages of two-column edge type connectors is that they can be reused and removed without the need for additional soldering.

Mezzanine Connectors

Mezzanine connectors are board-to-board connectors designed for use on PC boards with straight parallel surfaces. These types of rectangular connectors feature two columns of pins that contact the target boards with an internal metal sleeve that slides over the pins to create an electrical connection between the two targets. Mezzanine connectors provide a low-profile, low-insertion-force connection between two tightly spaced PCBs and offer a choice of mounting styles, such as press-fit, solder-through hole, or surface mount.

Working Principle

Rectangular connectors use a two-column design with an internal metal sleeve that slides over the pins to create the electrical connection between the two target PCBs. These connectors have two distinct contacts per pin. The first contact is the mating surface, which is exposed on the side of the PCB and contacts the opposite board. The second contact is the signal connection, which is located inside the metal sleeve and is usually electrically connected directly to the signal trace on the PCB.

When two boards are inserted into a rectangular connector, the metal sleeve slides over the pins and creates an electrical connection between the two boards. The electrical connection is established because the pins are designed with enough clearance that when two boards are inserted into a rectangular connector, the pins from one board will connect with the opposite board and create the necessary electrical contact.

Conclusion

In summary, rectangular connectors are an effective and reliable type of board-to-board connector that is used in a variety of electronic assemblies. They come in two main varieties, two-column edge type and mezzanine connectors, both of which feature a metal sleeve that slides over the pins to create an electrical connection between the two target boards. The working principle of this type of connector relies on the pins having enough clearance so that when two boards are inserted, they make an electrical connection and establish an electrical contact.

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