70297-002LF Connectors, Interconnects

Series:	Metral®
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Type:	Coaxial
Pin or Socket:	Pin, Center
Contact Termination:	Crimp
Wire Gauge:	RG-174, 188, 316
Contact Finish:	Gold
Contact Finish Thickness:	50.0µin (1.27µm)

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Introduction to Backplane Connectors - Contacts

Backplane Connectors – Contacts are important electrical connection wires and circuits used in a myriad of devices such as industrial, aerospace, maritime, and telecommunications systems. They are designed to provide the highest level of electrical integrity, reliability, and performance. By providing a secure connection between two pieces of equipment, they are able to maintain reliable transfer of signals and power across the entire system.Backplane Connectors – Contacts are typically constructed with a set of “bases” with conductive pins, which are referred to as “contacts.” Contacts are typically made of metal such as copper, brass, stainless steel, or aluminum and consist of a core and a body. The body is formed by a thin layer of plastic material around the metal that forms a shell, and a head, or “end” that makes contact with the other component. The core provides a means for the electrical signals to flow between components, while the body allows the contacts to be adjusted to make optimal contact with the other component.There are several different types of contacts, including through-hole, surface mount, and board-level contacts. Through-hole contacts are used where a smaller number of components are necessary, and the contact can be accessed from the top and/or bottom of the board. Through-hole contacts are generally considered the most reliable type of contact because their connection point is sealed. Surface mount contacts are used in applications where there are a larger number of traceable components. A surface mount contact is a general term for any contact whose base is mounted onto a board, without any other components connecting it to the board. Board-level contacts are generally used for more complex electrical connections. Board-level contacts are usually drawn on the board to connect multiple components, and may have additional shielding or support structures to ensure reliability.

70297-002LF Application Field and Working Principle

The 70297-002LF Backplane Connectors – Contacts is a type of surface mount contact that is specifically designed for use in computers, video cards, networking devices, and consumer electronics. It can be used to connect two components on a board, as well as within a device such as a computer or server. The 70297-002LF contact has an external diameter of 0.174in (4.42mm) and is made from a gold plated brass body with a 0.025” (0.635mm) roundover shaped head for precise contact at the wire-hole.The 70297-002LF contact works by providing a secure connection between two components. The contact features a gold-plated brass body which provides the highest level of conductivity, and a roundover shaped head which provides the best current voltage characteristics. The roundover shape helps to reduce the micro-tearing of the wire caused by standard flush-type connectors, which leads to higher signal integrity and better performance.When securing the 70297-002LF contact to the board, a soldering iron, solder, flux, and a soldering tip should be used to ensure the highest level of conductivity. The tip should be chosen based on the type of board being used, with a 0.20in (5.1mm) soldering tip being ideal for a standard component board. The contact should be first aligned to the board, and then soldered. It is important to make sure that the contact is properly aligned, as incorrect alignment can lead to poor performance of the device. After the contact is soldered, it is important to inspect the connection to ensure that it is securely and properly attached.In conclusion, 70297-002LF Backplane Connectors – Contacts are a reliable and efficient way to connect two components, and are especially suited to high-performance applications such as computers, video cards, and networking devices.

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