56-745-003-LI

D-Sub, D-shaped connectors, also known as D-subminiature connectors, are a type of electrical connector which include a variety of connector variants, such as the DE-9 and DB-25 commonly seen on PCs, as well as the HD-15 commonly seen on video game consoles.

The 56-745-003-LI is a miniature circular vertical plastic shell version of the D-Sub family of connectors. This type of connector uses 9-pins in a single row with differential pairs, and is used in applications where a small footprint is desired.

The applications for the 56-745-003-LI range from industrial and automation to medical and military devices, and can be used in a variety of fields. They are often used in applications requiring high-frequency/high speed data transmission, where the durable and reliable connectors are needed in order to ensure reliable data transmission.

The working principle of a 56-745-003-LI connector is fairly straightforward. The connector itself is composed of an outer shell, a dielectric, a contact or terminal, and an optional solder cup. All of these components work together in order to allow reliable electrical contact between two mating connectors.

The outer shell is typically made of plastic or metal, and is molded into the desired form. The dielectric, which is a coating of insulating material used to provide protection to the contacts, is critical for reliable contact and connection. The contacts or terminals of the 56-745-003-LI are made of copper or gold and are usually plated for improved conductivity and corrosion resistance. Finally, the optional solder cup is a metal attachment which is used to assist in soldering the connector.

The 56-745-003-LI connector is usually paired in male/female variations, and when two mating connectors are mated, they slide together against the terminal and the dielectric in order to create electrical contact. The dielectric provides insulation between the mating connectors, while the terminals provide the actual electrical connection and contact between the devices. The optional solder cup can provide added stability and reliability for soldered connections.

The 56-745-003-LI offers a reliable connection and is a popular choice for many applications, such as medical, laboratory, military, and industrial applications. The tiny form factor of the connector, combined with its high-frequency performance, makes it an attractive option for many uses.