SQT-125-03-SM-D

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Rectangular Connectors – Headers, Receptacles, Female Sockets – are electrical connectors that provide a secure and reliable connection between two or more devices, generally used in industrial settings. The SQT-125-03-SM-D is a type of rectangular connector from provider Samtec that is specifically designed for high speed applications, with high power density, small profile, and precise accuracy. This article will discuss the application field and working principle of the SQT-125-03-SM-D connector in detail.

Applications Field

The SQT-125-03-SM-D connector is designed for high speed applications, with exceptional signal integrity. This connector is particularly suitable for use in data plane interconnects, where fast, reliable connections are required. Common applications include:

• High-speed networking: particularly those involving Fast Ethernet or 10/100/1000BaseT Ethernet
• Extending physical layers for attenuation control
• High-speed serial data transmission: including SATA, USB, and PanelLink applications
• High-speed internal and external cable assemblies

The SQT-125-03-SM-D connector is also an ideal choice for high speed data plane interconnects, due to its high density interface and precise accuracy that allows for the most efficient data transfer. Additionally, this connector is designed for reliable, secure connections in a range of industrial environments, from temperature or shock extremes, to near-absence of humidity.

Working Principle

The SQT-125-03-SM-D connector features a small profile and direct current (DC) power transfer, making it ideal for small form factor applications. The connector consists of a header body and receptacle body, with two rows of 3mm mounted and soldered pins. The header body has a mounted locking pin that ensures a robust connection between the receptacle and header bodies when engaged.

The SQT-125-03-SM-D is designed to ensure superior signal integrity, with precise accuracy and signal integrity across the entire connection path, from electrical contacts to termination points. The connector is further designed to ensure a reliable, secure connection, with a low insertion force to ensure seamless connections with minimal effort. Additionally, the connector features a wide contact grip range, which ensures a secure grip on the receptacle, while providing an easy and quick disconnect capability.

In terms of installation, the SQT-125-03-SM-D connector is designed for quick and easy installation. The connector system offers a selectable termination type, with a variety of soldering, crimp, and press-fit terminations available, allowing for a wide range of user applications. Additionally, the connector system can be used with already mounted devices, such as motherboards, to secure a quick, reliable connection.

Conclusion

The SQT-125-03-SM-D connector by Samtec is a high speed, reliable, and secure connection solution designed for a wide range of industrial applications. The connector features high speed signal transfer, high power density, a small form factor, and precise accuracy, making it an ideal choice for data plane interconnects and other high speed applications. Additionally, the connector offers quick and easy installation, with selectable termination types and the ability to use with already mounted devices.

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