Metal waterproof connector is a new type of connector that can operate well in various environments such as high temperature, high humidity, high vibration and high shock, while plastic connectors do not have these characteristics. Next, let me introduce you to the difference between metal and plastic connectors for waterproof connectors.

Metal waterproof connector is a new type of waterproof connector that can maintain regular operation under high temperature, high vibration, high impact and high humidity. Ordinary plastic connectors do not have these functions, so the specific waterproof connectors are different from ordinary plastic connectors in the following aspects:

1. Mechanical life: The mechanical life of a waterproof connector refers to the number of insertion and removal life, which is usually specified by industry standards as 500 to 1000 times. When the specified mechanical life is reached, the contact resistance, insulation resistance and withstand voltage of the waterproof connector should not exceed the specified standard values, which are not much different from the plastic housing.

2. Electrical properties: rated voltage, rated current, contact resistance, insulation resistance, etc. are in accordance with the specified standard values, this metal is the same as the plastic shell.

3. Environmental parameters: Environmental parameters mainly include ambient temperature, humidity, temperature change, atmospheric pressure and corrosive environment. The environment in which a waterproof connector is used during storage and transportation has a significant impact on its performance. Therefore, it is best to choose the corresponding metal casing according to the actual environmental conditions.

4. Termination method: The termination method refers to the connection method between the male and female connectors of the waterproof connector and the hardware contact part of the wire and cable. Metal is the same as plastic housing. Comprehensive analysis, except for the need for shielded joints, the performance of metal and nylon TA66 plastic housings is not much different. Plastic is cheaper than a metal case and has a more reasonable construction.

Comprehensive analysis, in addition to the need for the shielding function of the connector, the performance of the metal and plastic shells is not very different in all aspects. Compared with metal shell, plastic has lower cost and more reasonable structure.