Circular electrical connectors (aviation plugs) are low-frequency electrical connectors. Nine shell numbers; 4 contact specifications; 32 hole arrangements. From 1 hole to 62 holes. The bayonet type quick connection system is adopted, which is easy to operate, reliable in connection, resistant to vibration and shock. Five keyway positioning, with blind insertion and anti-misinsertion functions. The high-reliability hyperboloid wire spring hole makes the connector plug and unplug softly, with low contact resistance and reliable operation. There are five types of sockets to choose from. In line with the national military standard GJB2889, it is widely used in aerospace, aviation, navigation, railway, field communication and various instruments, meters and other equipment. Electrical parameters: 1. Rated voltage: Also known as working voltage, it mainly depends on the insulating material used in the circular electrical connector and the distance between the contact pairs. Some components or devices cannot perform their function when the voltage is lower than their rated voltage. 2. Rated current: also called working current. Like the rated voltage, circular electrical connectors will work well below the rated current. In the design process of the circular electrical connector, the rated current requirement is met by the thermal design of the circular electrical connector, because when the current flows through the contact pair, the contact pair will generate heat due to conductor resistance and contact resistance, when the heat Beyond a certain limit, the insulation of the circular electrical connector is destroyed and the contacts soften the surface coating, leading to failure. Therefore, the rated current actually limits the temperature rise inside the circular electrical connector not to exceed the design specification. 3. Contact resistance: Contact resistance refers to the resistance generated by the two contact conductors at the contact part. The contact resistance of the circular electrical connector refers to the contact-to-contact resistance, including the contact resistance and the contact-to-conductor resistance. 4. Shieldability: In modern electrical and electronic equipment, the increasing density of components and their associated functions impose strict limits on electromagnetic interference. Safety parameters: 1. Insulation resistance: refers to the resistance value presented by applying a voltage to the insulating part of the circular electrical connector and causing leakage current on the charged surface of the insulating part surface. 2. Withstand voltage: refers to the critical voltage between the insulating parts of the contact pair or between the insulating part and the ground, which can withstand higher than the rated voltage within a specified time without breakdown. It is mainly affected by contact pair spacing and creepage distance geometry, insulator material, ambient temperature and humidity, and atmospheric pressure. 3. Flammability: The circular electrical connector should not only prevent fire, but also self-extinguish within a short time once it catches fire.
