Shenzhen Dawson Electric Co., Ltd. company profile

I. Quality Standards for Connectors
1. Appearance standards: The appearance of the connector should be free of bubbles, cracks, scratches, deformations and other defects, and the solder joints should be intact. It should also be noted that the color of the connector should be consistent with that of the previously purchased product.

2. Operating standards: The connector should be able to be inserted and removed smoothly without any jamming or loosening. After the connector is inserted, it should be stable and not show obvious shaking.

3. Electrical standards: The contact resistance of the connector should be less than 1 milliohm, the insulation resistance should be higher than 100 megohms, and the withstand voltage current should meet the qualified standards.

4. Dynamic standards: The connector should be capable of withstanding a high temperature of 120 ° C and a low temperature of -40 ° C, as well as a three-axis vibration of 100G/6ms and a gravity impact test of 30G.

Ii. Inspection Methods for Connectors
1. Visual inspection: Visual inspection is one of the simplest inspection methods. By observing the appearance of the connector, its quality can be initially judged.

2. Contact resistance test: Use a conduction test pen and a multimeter for the test. During the test, it is important to ensure that all contacts of the connector come into contact with the test equipment.

3. Insulation resistance test: Use a multimeter for the test. During the test, it is necessary to determine the magnitude of the test voltage and current.

4. Withstand voltage test: The test is conducted using an insulation resistance tester. During the test, attention should be paid to the test time and the magnitude of the current used.

5. Dynamic testing: Testing is conducted using equipment such as high and low temperature test chambers, vibration tables, and impact testing machines.