QFS-078-02-H-D-RA

QFS-078-02-H-D-RA Application Field and Working Principle

Rectangular connectors are used in countless innovations and applications. The QFS-078-02-H-D-RA rectangular connector– from the Arrays, Edge Type, Mezzanine (Board to Board) type– is no exception. Often used in the field or design of electronics, this connector has its own specific uses. This article will discuss the application field and working principle of the QFS-078-02-H-D-RA in more detail.

Application Field

The QFS-078-02-H-D-RA\'s use is diverse. Its primary application field is in the field of mezzanine signal and power transmission. It is also used to provide a reliable connection between electronic components in computer systems and other related designs. It\'s suitable for PC/104, PC/104-Plus, PCI, PCI-104, CompactPCI, PCIe/104, and PCIe/104-Express applications. In addition, it provides connectivity for wearable computers, communication systems, drone/robot controllers, transportation systems, and portable medical systems.

The QFS-078-02-H-D-RA is especially useful for those looking for a reliable connection in tight space conditions. Its pluggable design enables easy installation and replacement, eliminating the need for soldering. This makes it advantageous in areas with constant vibrations, high jumpers, or even corrosive environments. It also features a high contact mating force, excellent EMI shielding, and a wide operating temperature range of -55°C to +125°C, guaranteeing a solid and secure connection.

Working Principle

The QFS-078-02-H-D-RA connector works on a simple yet effective principle. Its contacts consist of a dual-row, double-sided array of solder tabs that are inserted into a stamped and formed housing. When two mating connectors are engaged, the tab insert contacts at each end of the housing make a secure electrical connection. The housing is then securely fastened with screws.

The QFS-078-02-H-D-RA typically contains 78 contacts (2×39), though the number of contacts can vary depending on the size and type of the connector. Each contact contains one gold-plated pin and one machined spring contacting tab. The combination of both provides excellent electrical contact resistance and durability. The pins are typically 0.64 mm with a maximum current rating of 1.5A. The contacts are also RoHS-compliant, with tin-plated over gold-plated contacts and tab locks for secure mating. The mating force is greater than 10N per contact.

Overall, the QFS-078-02-H-D-RA is an ideal solution for customers seeking a reliable connection in tight space conditions. It offers excellent electrical contact resistance and durability, is easy to install and replace, and offers high contact mating force. From wearable computers to communication systems, this connector can be used in countless applications and designs.