3-6450840-4

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Backplane connectors are designed to interconnect printed circuit boards in a backplane system in order to provide data transmission and signal integrity. Connectors come in different types and sizes, each of which has a predetermined set of characteristics and performance requirements. The 3-6450840-4 is one such backplane connector, specifically designed for application in high data rate and high signal integrity applications. In this article, we explain the key characteristics of this connector and its typical application field and the working principle.

Characteristics of the 3-6450840-4

The 3-6450840-4 is a high-bandwidth vertical contact card cage. With an integrated EMI shielding plate, this backplane connector features a maximum of 16 data paths. Each of the data paths contains two rows of 50-pin contacts, which are constructed using four pieces of crimp contacts that are inserted into the 50-pin contact positions on the 5-pin header. The contacts are designed to ensure high reliability and are connected to gold-plated brass terminals on the PCBs. The other components of the connector, such as the EMI shielding and retainers, are corrosion-resistant, making them ideal for use in harsh environments.

The 3-6450840-4 features a multi-wire contact system that minimizes EMI/RFI interference. The contacts are designed to support an operating temperature range from -40C to 85C. The contact insertion force is also modestly low in the range of 60-90gf. In addition, the connector has a high insertion depth of 9.5mm and a contact retention of40N.

Typical Application Field and Working Principle

The 3-6450840-4 is typically used in high-end communication, computing, and radar systems. It is well suited for applications that demand high data rates and signal integrity, including: servers, routers, switches, base stations, and test equipment. It is also widely used in the aerospace and medical industries.

The working principle of this connector is simple. The gold-plated brass terminals on the PCBs are inserted into the two rows of crimp contacts on the 5-pin header. As the connector is mated, the EMI shielding and the retainers ensure that the contacts are firmly held, thus protecting the data paths from interference and ensuring stable transmission. The multi-wires present inside the contact system help minimize EMI/RFI interference.

In summary, the 3-6450840-4 is a high-bandwidth, high-reliability, and multi-wire contact system backplane connector designed for applications demanding high data rates and signal integrity. Its integrated EMI shielding plate, low insertion force, and high insertion depth make it a suitable choice for use in servers, routers, switches, base stations, and test equipment. Its multi-wire contact system minimizes EMI/RFI interference and ensures a stable transmission of data.

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