1747890-1 Connectors, Interconnects

1747890-1 or commonly known as IEEE 1747890-1, is an international standard for sockets for integrated circuits, transistors, and other accessories. These sockets are designed to provide high-precision connections and improved reliability over conventional soldered connections. They are designed for ease of use in a wide range of applications from automotive, telecommunications, industrial electronics, to home entertainment equipment.

The 1747890-1 standard defines a family of special-purpose sockets designed to ensure a reliable electrical connection between an integrated circuit (IC) and its associated device. This standard requires that these parts must support specific voltages and require specific placement in printed circuit boards (PCB)s. The standard also requires compliance with performance and safety requirements.

A 1747890-1 socket is generally constructed out of a plastic shell with a metal bushing or ground connection. The socket houses several pins that insert into the IC leads to provide a true electrical connection between the IC and the circuit board onto which it is mounted. The pins are also used to secure the socket to the PCB.

The 1747890-1 standard recommends two types of ground paths. The main ground contact is solidly attached to the plastic shell of the socket, and is designed to provide a solid connection to the chassis. The secondary ground contact is usually a separate contact that can be used to establish a ground path directly from the socket to the circuit board, and provides additional grounding for the IC.

The 1747890-1 standard also specifies other performance criteria such as contact resistance and electrical insulation that must be considered when selecting a socket. The most important performance metric is contact resistance, which must be kept below a specified limit. This ensures that electrical current flows through the socket without being disrupted due to resistance. The sockets must also be certified against shock and vibration, to ensure the reliability and safety of the connection.

The 1747890-1 sockets are designed to provide reliable, precision connections between components and circuit boards. They come in many sizes and shapes, allowing for the use of multiple components to be connected with a single socket. They can also be purchased either pre-assembled or as components to be assembled on the PCB. Available accessories provide mounting options for both vertical and horizontal mounting, and crimp and solder-less connections.

The 1747890-1 sockets are used in a wide variety of applications ranging from automotive, telecommunications, industrial electronics, to home entertainment equipment. They provide an economical, highly reliable way to quickly and accurately make connections between components or circuit boards. They are an important part of any professional design and are an essential component in many electronic products.