QFS-078-04.25-H-D-A

Series:	Power Q2™ QFS
Packaging:	Bulk
Part Status:	Active
Connector Type:	Receptacle, Center Strip Contacts
Number of Positions:	156
Pitch:	0.025" (0.64mm)
Number of Rows:	2
Mounting Type:	Surface Mount
Features:	Board Guide, Ground Bus (Plane)
Contact Finish:	Gold
Contact Finish Thickness:	30.0µin (0.76µm)
Mated Stacking Heights:	10mm, 11mm, 14mm
Height Above Board:	0.278" (7.06mm)

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1QFS-078-04.25-H-D-A Rectangular Connectors – Arrays, Edge Type, Mezzanine (Board to Board)Rectangular connectors are used in a variety of electronic systems, from computers to consumer electronics, as well as for various communications and data transmission applications. The QFS-078-04.25-H-D-A is a type of edge-type mezzanine (board to board) connector designed to allow for efficient data transfer between boards. It has a standard array of 78 pins and a height of 4.25mm.Board-to-board connectors are often used in embedded systems, such as those in industrial control systems, aviation systems, and medical devices. Unlike wires and cables, which have limited flexibility and may require complex, space-consuming wiring assemblies, board-to-board connectors allow for quick and easy connection between various boards and components. This type of connector is ideal for applications that require high-density connections, such as in high-speed digital signal processing systems.The QFS-078-04.25-H-D-A features a contact interface with a double-blade, squared contact form that ensures reliable retention and effective protection against dust and EOS. It is rated for up to 0.5A per contact with an insulation resistance of 1000MΩ and a contact resistance of 30mΩ maximum. The connector is easy to assemble due to its direct solder mounting and the contact areas are protected from solder bridging by a space-saving protective plastic frame.The QFS-078-04.25-H-D-A also features a unique solderless connection system that allows it to be used as part of a standard PC board arrangement. This allows for high-speed and higher-complexity system designs, as well as low-cost short production runs. The connector is also RoHS compliant and it meets UL 94V-0 flame retardancy requirements.The connector pin spacing is designed to allow signals to be transferred with low signal crosstalk and low radiation losses. Its design also ensures that it can withstand high temperatures and vibration, making it suitable for high-reliability environmental conditions. The connector offers excellent shielding properties, which helps to minimize noise interference when connecting signals between boards.The QFS-078-04.25-H-D-A is an ideal connector for high-speed data transmission between two boards. It is reliable, cost-effective, and extremely versatile, making it an ideal connector for a variety of embedded system applications. Its unique design allows for a range of possible connections and its small size makes it suitable for space-constrained environments. It is the perfect connector for applications that require reliable, cost-effective, and high-speed board-to-board connections.

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