Circular connectors are a type of electrical connector that is characterized by its circular cross-section. They are commonly used in a wide range of applications, including industrial automation, military and aerospace, and telecommunications. Circular connectors are available in a variety of sizes, styles, and configurations, and can be used to connect a wide range of devices, such as sensors, motors, and cables. They are often used in applications where the connector needs to be easily mated and unmated, and where a high degree of reliability is required. Some common types of circular connectors include D-sub connectors, BNC connectors, and RJ connectors.