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Backplane Connectors - DIN 41612

The DIN 41612 standard defines a family of high-density connectors used for backplane applications. It is a two-row, shrouded, modular pluggable connector system with a state-of-the-art insulation displacement contact system. With its large number of contact configurations, mounting styles, and electrical characteristics, it is widely used in a variety of electronic systems and assemblies.

DIN 41612 connectors are primarily used for backplane applications. A backplane is a printed circuit board (PCB) whose traces provide physical and electrical connections between multiple electronic components or subsystems. These connectors replace the traditional point-to-point wiring systems for connecting a set of pre-defined devices and circuits. A backplane connection ensures that all the devices and circuits are connected and can be added or removed without re-wiring.

The main purpose of the connectors is to provide a high-speed data path between boards, while minimizing cross-talk and RF noise. DIN 41612 connectors offer excellent flexibility, with contact configurations from 20 to 120 contacts per row. The contacts are arranged in two rows with a column pitch of 2.54mm (0.1 inch) and different mating heights up to 7.62mm (0.3 inch). The connectors are designed for plug-and-socket connections, allowing for boards, systems, and backplanes to be replaced quickly.

The DIN 41612 connectors are used in a wide range of applications, including telecommunications, industrial control systems, automotive electronics, computer systems, and consumer electronics. They are well suited for applications requiring high shielding and low crosstalk, such as storage area networks, local area networks, and test and measurement systems. Another major application is in avionics, where the connectors are used to connect multiple boards in a system.

Working Principle of DIN 41612 Backplane Connectors

The DIN 41612 backplane connector offers a two-piece connection system. The first component, the plug, is inserted into the printed circuit board (PCB). The connection of the second component, the socket, to the plug, is done by an insulated conductor, or contact, which is the main operating element of these connectors. The contact is a two-piece design, comprising the contact pin and the contact sleeve. The contact pin is a single-piece unit, and the contact sleeve is a dual-piece component that acts as an insulator and a holder for the contact pin.

The contact pin is made from high-durability copper alloy with a triangular cross-section. The contact is held in the contact sleeve by a combination of a resilient spring force and friction. The spring force provides the contact pin with a degree of retention and is also designed to ensure contact making forces that exceed the required standard when the system is connected. The contact is secured in the contact sleeve by two radial steel pins.

The contact pin is inserted into the contact sleeve when the plug is connected to the socket. The contact pin is then forced against a corresponding contact of the other mating connector. This ensures an electrical connection between the two components. The contact pin is designed with an internal resistance of less than 10 ohms, ensuring that the connection can transfer the high frequency and electrical signals with minimal loss.

The DIN 41612 backplane connector offers a level of flexibility and performance that is unmatched by other connector systems. It is well suited for a variety of applications, from low to high density backplane designs. With its high level of functionality and durability, the DIN 41612 connector is an ideal solution for any application requiring a high-performance, reliable, and cost-effective connection system.

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