Precautions for connectors used in harsh environments

Connectors have a variety of uses. For example, in some harsh environments, there are also precautions when using connectors. Do you know what these precautions are? The Konnra connector engineer introduces you What should be paid attention to the connector used in the environment.

In general, connector products used in harsh environments need to consider four aspects: communication protocol, space requirements, termination style, and EMI protection. The details are as follows:

1.Connector communication protocol
The communication protocol is one of the main factors to consider when selecting a connector in a harsh environment. Each connector can be used to carry different types of signals such as RS232 or I2C serial interface, RF transmission, audio and video signals, power supply or high-speed data communication. In addition, the level of data rate and characteristics should be considered. In some cases, a single connector can use more than one communication protocol. In terms of power requirements, designers must check voltage and current requirements. In addition, the selected connector should meet specific criteria to ensure that it is suitable for the desired application.

2. Connector space requirements

Today's market is an era led by the trend toward miniaturization. Most modern applications are turning to chips and technology to provide advanced functions in a small size. If you're a connector design engineer, be mindful, as they should choose a connector that fits the space they need. There are options such as nesting and linkage arrangements, or they can even combine functionality with a reduced number of interfaces. You can also look for designs that seal the connector into the panel or place it in front of or behind the housing.

3. Connector termination style
When the communication protocol and the form factor of the connector are fixed, it is the best time for us to consider the termination style. Harsh environment connectors provide metal seals and provide electrical connections. This electrical connection is made by soldering the connector directly to the circuit board or through a cable termination. If direct soldering is used, vertical or right-angle PCB soldering termination can be considered. In the case of cable termination, there are several options, such as solder cup termination, which is a popular option. Crimp termination is another option, and usually requires less labor.

4. Connector EMI protection

In addition to water and dust, connectors in harsh environments are required to protect components from electromagnetic interference (EMI) radiation. EMI radiation can enter the box and interfere with the function of the device or exit the box and interfere with other devices. To ensure that connectors in harsh environments provide the best EMI performance, choose a connector with a plated metal housing and conductive washers.