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Rectangular Connectors - Headers, Receptacles, Female Sockets

The SQT-107-03-S-D-004 is a rectangular connector, more specifically, a header, receptacle, or female socket. This connector type is part of a larger family of rigid and flexible rectangular connectors available from manufacturers. SQT-107-03-S-D-004 connectors are specifically designed for insertion into printed circuit boards (PCBs) via pin headers, in order to provide electrical connections.

Building upon the physical characteristics of the other rectangular connectors, the SQT-107-03-S-D-004 has a contact design that allows for low insertion forces and better mating conditions. This eliminates the need for a guide pin, hence this type of connector is known as power transfer without guide pins.

Application Field

The SQT-107-03-S-D-004 is primarily designed for electronic circuit board connection. These connectors are commonly used in telecommunications, data communication, and consumer electronics; in which accurate and highly reliable signal transmission is desired. Such applications include headsets, satellite receivers, and CCTV systems.

SQT-107-03-S-D-004 connectors are typically employed in low current, high-frequency signal transmission, such as voice, data, and video. This is due to the power rating (1 A/15 VDC) of the connector as well as its high-speed I/O transmission capabilities (8 Gbps/20 GHz).

Working Principle

The three main components of the SQT-107-03-S-D-004 connectors are the mating header, receptacle, and female socket. On one end of the connector is the mating header, which contains the electrical contacts. Inside the mating header are receptacles, which mate up with the female sockets on the other end.

The connection between the female socket and the mating header is made through electrical contacts, which are typically gold-plated. These contacts transfer electrical signals from the female socket to the mating header, allowing for low insertion forces and better signal integrity. The overall design is surrounded by insulation to prevent shorts and other electrical interference.

As the female socket and the mating header are inserted into one another, the electrical contacts of both parts are in direct contact. This connection is made via a series of pin and receptacle connections, ensuring reliable electrical contact. The connection is also self-aligning, ensuring accurate and secure mating.

On the surface, it may appear the SQT-107-03-S-D-004 connector is difficult to attach. However, due to its self-aligning design, insertion is relatively easy. With minimal effort, the connections can be completed with a simple push, ensuring a secure, reliable connection.

Conclusion

SQT-107-03-S-D-004 rectangular connectors are used in applications ranging from telecommunications and data communication to consumer electronics. These connectors are typically employed in low current, high-frequency signal transmission, due to their power rating and high-speed data transmission capabilities. The mating header, receptacle, and female socket of the SQT-107-03-S-D-004 are inserted into one another, allowing for low insertion forces and better signal integrity. Although it may appear intimidating to attach the fittings, they are self-aligning and can easily be inserted with minimal effort.

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