1857997-1

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Backplane connectors play an integral role in the reliable interconnection of components within an application platform, such as a computer. As technology has advanced, so too has the range of backplane connector types and design standards available. Among the most popular types are Hard Metric and Standard backplane connectors, of which 1857997-1 applications are perhaps the most widely utilised.

Hard Metric Backplane Connectors

Hard Metric backplane connectors are a key component of system development and are used in a number of different applications. These connectors are developed in line with EN 3759 and MIL-STD 1760 specifications, and are designed with speed, flexibility and interchangeability in mind. Hard Metric backplane connectors are used in a variety of applications, including digital and analogue communications, power distribution and card interfacing. An alloy shell helps protect the contacts which are typically made with gold plated beryllium copper.

Hard Metric backplane connectors feature a central \'plus\' architecture which adds rigidity and stability to the assembly. This design helps ensure a secure connection between the front and rear panels, which also helps to prevent tarnishing or corrosion over time. It also allows for larger contact pitches (e.g. 1.00 to 3.00mm) and the use of current carrying contacts.

Standard Backplane Connectors

Standard backplane connectors are also commonly used in a variety of applications. Developed to meet EN 50017, 50018 and 50019 specifications, these connectors have a fixed contact layout and typically come with a one-piece shell. The contacts in Standard backplane connectors are generally made with copper alloy and plated with either gold or silver material. These connectors are typically used in applications involving the transfer of data and power.

Standard backplane connectors offer a variety of benefits, including low contact resistance, high-speed transmission capability, simple and cost effective assembly, and a range of compatible interface standards. Other features such as solder tabs and thru-hole connections help make them easier to use and more reliable.

1857997-1 Applications

The 1857997-1 specification – which covers the requirements for a hard metric backplane connector – is typically used in applications where reliability and robustness are essential. This standard is often used in the development of computer systems, routers, and other high-speed communication networks. It is also suitable for applications where high-voltage or high-current connections are required.

The 1857997-1 backplane connector includes a number of features such as a low profile, one-piece shell, re-entrant contacts, mechanical keying, and feature gaps for improved polarisation. The contacts are made from beryllium copper which is gold plated for improved corrosion resistance. The contact pitch can range from 1.0 mm to 3.0 mm, depending on the application.

Working Principle

The working principle behind the 1857997-1 backplane connector is relatively simple; contacts on the front and rear panels of the connector are inserted into matching contact slots in the opposite panel. The mechanical design of the contacts ensures that they have a secure fit, while the robust design of the shell protects the connector from environmental damage.

When a connection is made, current flows from one contact point to another, allowing for data transmission or power transfer. The contacts can also be designed to handle high voltage and/or high-current connections, allowing for a range of applications.

Conclusion

Hard Metric and Standard backplane connectors are both popular choices for a variety of applications, but it is the 1857997-1 backplane connector which is perhaps the most widely utilised. This type of connector is designed to meet the EN 3759 and MIL-STD 1760 specifications, and includes features such as a low profile, one-piece shell, re-entrant contacts, mechanical keying, and feature gaps for improved polarisation. The working principle involves the insertion of contacts on the front and rear panels of the connector into matching contact slots in the opposite panel, allowing for a secure connection that is capable of data transmission, power transfer, high voltages and/or high-current connections.

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