The waterproof tact switch is a switch that will not fail even if it is immersed in water, that is to say, the waterproof tact switch can completely protect the dust in the air.

Different waterproof tact switches have different waterproof grades. Of course, they must have good waterproof performance. The higher the grade, the better the waterproof performance. The company can choose different grades of waterproof tact switches according to different product needs. Because some products are not necessarily the better waterproof performance, the better the product, it depends on the situation.

① The purpose of viewing the waterproof micro tact switch is to serve as a basis for IQC to inspect its materials; at the same time, it should be viewed under a 40W fluorescent lamp at room temperature (25±5 degrees). Check the process of 7*7 waterproof tact switch specifically as follows:

1. Wetability test. After the tin wetting test, the upper tin surface should be less than 80%.

2. Contact resistance. 5. ≥100mΩ (5VDC, 10Ma, 1000Hz) is not in the plan of the acknowledgment.

3. There will be no damage when placed at 1M or so under normal temperature water for about 30 minutes.

4. Look at the appearance. The appearance should not have too much stains, the packaging should not be scattered, or the mixed packaging can be wrong, the pins can not be oxidized, and the buttons feel better.

5. Use force and resilience. Whether the applied force is within the 260±50f plan, is the resilience less than 50f.

6. Construction standards. The length, width and height cannot exceed the plan in the acknowledgment.

The application of waterproof tact switches is extremely wide. With the development of society, people are becoming more and more aware of them. Therefore, they also pay attention to frequently used household appliances and other products, whether it is waterproof switches or waterproof sockets or other products. Although the price is a bit more expensive, it is still hot sale. A large number of customers will specifically emphasize and require waterproof tact switches.

② Precautions for the use of waterproof tact switches:

The bounce and oscillation specified by the type of the tact switch set the circuit so that the combined components will not cause malfunctions, so it cannot be used for a long time near the upper and lower limits of the operating temperature range. When soldering the tact switch, water-soluble flux may corrode the tact switch, so try not to use it. If you put pressure on the switch, it may cause the switch to loosen and deform, so be very careful when welding. If the waterproof tact switch is used at a voltage exceeding the rated voltage, it will cause poor contact. When using the tact switch, it should be in accordance with the requirements in the product specification and within the scope of various environmental tests in the parameter book.