1218821-2

Series:	ARINC
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Type:	Coaxial
Pin or Socket:	Socket, Center
Contact Termination:	Crimp
Wire Gauge:	RG-142
Contact Finish:	Gold
Contact Finish Thickness:	--

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Introduction

Backplane connectors, also known as backplane contacts, are integral components for any electronic system. They are usually employed in computers, communication systems, and other related electrical systems, and often take up the task of connecting two circuit boards together. The 1218821-2 backplane connector is specifically designed to assemble PCBs onto a backplane that is part of a high-speed data processing system. This article will focus on the application field and working principle of 1218821-2 backplane connectors.

Application Field

The 1218821-2 backplane connector operates at frequencies of up to 4GHz with losses of less than 1.5dB. It is highly suitable for applications such as gigabit-local area networks (GigLANs) and future high-definition video transfer. In particular, the backplane connector has an excellent signal-to-noise ratio and is ideal for applications in electronic systems with high-speed data processing.Each 1218821-2 backplane connector is made up of two parts, the plug and the receptacle. The plug, in turn, consists of a set of helically terminated pins that fit into the receptacle which is held in place by two screws. Twelve pins are the general standard and the receptacle is usually made of anodized aluminum. The 1218821-2 backplane connector is ideal for applications in harsh environments, as it can resist corrosive pollution and extreme temperatures.

Working Principle

The mechanism of the 1218821-2 backplane connector is based on the contact and electrical closure principles. It uses electrical connection between the plugs and receptacles to establish the connection between two circuit boards.When the plug is inserted into the receptacle, the pins of the plug come in contact with the receptacle’s contacts, through an electrical connection. This establishes the connection between the two circuit boards. The 1218821-2 backplane connector also has an additional feature, called "ejection," which ensures that the connector remains connected to the PCB at all times. This is achieved through the use of two "ejectors" which hold the plug in place even when the plug is disconnected.

Conclusion

The 1218821-2 backplane connector is specially designed for high-speed data processing applications. These connectors have an excellent signal-to-noise ratio and can operate at frequencies up to 4GHz. The connector is made up of two parts, the plug and the receptacle, and is held in place by two screws. Its operation is based on the contact and electrical closure principles which when combined ensure that a reliable connection is established between two circuit boards. The \'ejection\' feature, which further guarantees the integrity of the connection, is yet another example of the usefulness of 1218821-2 backplane connectors.

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