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Is the higher the safety parameter of the connector the better?

Connectors are an important part of the wiring system of modern electronic equipment. Regardless of the application, the safety performance of the connector can directly affect the safety of human use. When purchasing a connector, to understand the safety of the connector, you should pay attention to the three parameters of the connector's insulation resistance, withstand voltage, and flame retardant grade.

1. Insulation resistance refers to the resistance value presented by applying a voltage to the insulating part of the connector to cause leakage current inside or on the surface of the insulating part. Mainly affected by insulating materials, temperature, humidity, pollution and other factors. Insulation resistance values ​​provided on connector samples are generally indicative values ​​under standard atmospheric conditions. Under certain environmental conditions, the insulation resistance value will decrease to an unnecessary level. In addition, pay attention to the test voltage value of insulation resistance. Depending on the insulation resistance (MΩ) = voltage applied to the insulator (V) / leakage current (μA), applying different voltages will give different results. In the test of the connector, the applied voltage generally has three grades: 10V, 100V, and 500V.

2. Withstand voltage refers to the critical voltage that can withstand higher than the rated voltage without causing breakdown within a specified time between the mutually insulating parts of the contact pair or between the insulating part and the ground. It is mainly the effect of contact on clearances and creepage distances and geometry, insulator materials, as well as ambient temperature and humidity, atmospheric pressure.

3. Flame retardancy means that the connector should not only prevent fire, but also self-extinguish in a short time once a fire occurs. It is mainly affected by the plastic material of the connector body. Using materials with flame retardant, self-extinguishing insulation, the flame retardant performance of the connector is better.

According to different application environments, the requirements of the device on the safety parameters of the connector will also be different. Excessive pursuit of higher security parameters may result in wasted performance and price. Therefore, the safety parameters of the connector are not as high as possible. You should fully communicate with the connector manufacturer before purchasing, and purchase the most suitable connector products on the premise of meeting the safety performance requirements. TXGA is a leader among domestic connector manufacturers, and its production technology is professional and mature. It has provided reliable, professional and stable connector products for the industry for more than ten years. Purchase connectors and enter TXGA [Product Center].