What is a connector? Connector is connected to the flow of electrical power, electrical signal electronic parts, electronic engineers and technical personnel often contact a part. In China also called connector, plug, socket, generally refers to the electrical connector. A device that connects two active devices to transmit current or signals. There are many brands of connectors, both at home and abroad.
Connectors are not static; they vary in form and structure depending on the application object, frequency, power, and application environment. For example, there are network connectors, industrial connectors, electronic connectors, mobile phone connectors, computer connectors, etc., applied in different fields. For example, the connector used to light the lights on the court is very different from the connector used to light the hard drive or the connector used to light the rocket. But no matter what kind of connector, it is necessary to ensure that the current flows smoothly and continuously and reliably.
The basic properties of connectors can be divided into three major categories: mechanical properties, electrical properties and environmental properties.
1, mechanical properties. The insertion force is an important mechanical property in connection function. Another important mechanical property is the mechanical life of the connector.
2, electrical performance. The main electrical properties of connectors include contact resistance, insulation resistance and electrical strength, as well as other electrical properties. For rf coaxial connectors, there are characteristic impedance, insertion loss, reflection coefficient, voltage standing wave ratio and other electrical indicators. In addition to characteristic impedance, there are also some new electrical indicators, such as crosstalk hysteresis.
3. Environmental performance. Common environmental properties include temperature resistance, moisture resistance, vibration and impact, etc. According to the requirements of use, there are some other environmental properties, such as sealing, low pressure, etc.
In fact, the role of the connector is very simple: is in the circuit is blocked or isolated between the circuit, set up a communication bridge, so that the current flow, so that the circuit to achieve the scheduled function. Because it is easy to mass production, easy to maintain, easy to upgrade and improve the design flexibility and other characteristics, is now widely used in various fields, such as aerospace, communications, rail transportation, consumer electronics, new energy, medical care, etc..