QMS-078-01-L-D-EM2-PC4

Series:	Power Q2™ QMS
Packaging:	Tray
Part Status:	Active
Connector Type:	Header, Outer Shroud Contacts
Number of Positions:	164 (156 + 8 Power)
Pitch:	0.025" (0.64mm)
Number of Rows:	2
Mounting Type:	Board Edge, Straddle Mount
Features:	Ground Bus (Plane), Power Pins (8)
Contact Finish:	Gold
Contact Finish Thickness:	10.0µin (0.25µm)
Mated Stacking Heights:	--
Height Above Board:	--

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QMS-078-01-L-D-EM2-PC4 Application Field and Working PrincipleRectangular Connectors - Arrays, Edge Type, Mezzanine (Board to Board)A QMS-078-01-L-D-EM2-PC4 is a mezzanine, edge mount type, rectangular connector used for high speed data transmission and durability in harsh environments. It features a 0.078-inch pitch and a 1.25mm pin stack height. The QMS-078-01-L-D-EM2-PC4 is a two-piece connector system consisting of a low-profile, board mountable header and a miniaturized right angled socket. The connector system offers 32 to 64 signal positions, four power positions, and a peripheral wire for enhanced board ground integrity and noise immunity performance.The QMS-078-01-L-D-EM2-PC4 rectangular connector is used in a variety of board-to-board and board-to-component applications. It is commonly used in medical equipment, industrial control systems, and automotive applications. The connector system is rated for a current of up to 0.5A and a voltage of up to 5V, and is designed for operating temperatures of -40℃ to +125℃. It has a soldering tail length of 0.10mm to give added durability in high temperature soldering applications.The connector is composed of two metal shielding shells, the header shell and the socket shell, which are connected by our patented latching system using four latching arms. This latching system ensures a robust and secure connection between the header and the socket. Each shell is made of phosphor bronze with a gold flash plating finish. The contacts themselves are made of phosphor bronze, and the higher pin counts are available with a double row of pins for improved signal integrity and improved mechanical strength. The contacts have high tolerance pads with good adhesion to ensure safe, secure, and reliable signal transmission.The QMS-078-01-L-D-EM2-PC4 connector is designed for MDMI 15, HDMI 1.4, and Super Speed USB 3.0 board to board communications. It has superior electrical performance such as high signal transfer rates, low crosstalk, and improved shielding for reduced electromagnetic interference (EMI). The connector also offers high durability and environmental performance, with our four patented latching arms providing greater durability for demanding applications. The connector is UL and CSA rated for temperatures up to 125℃.Overall, the QMS-078-01-L-D-EM2-PC4 is an ideal solution for MDMI 15, HDMI 1.4, and Super Speed USB 3.0 board to board applications that require rugged, reliable, and high speed data transmission. Its reliable and durable latching system, combined with its high signal transfer rates, low crosstalk, and excellent environmental performance, make it the ideal choice for a variety of board-to-board and board-to-component applications.

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