How to see the model at the touch of a switch

How to judge the model of a tact switch by looking at its appearance? When we get the tact switch, we can roughly get the model of the tact switch through the following aspects.

1. The size of the touch switch You can directly use the vernier caliper to measure the overall length, width, and height of the switch. The types of tact switches corresponding to different sizes can roughly lock the model range, and you can know which model it is through the function and appearance.

2. Apply by tapping performance The performance of the tact switch is basically divided into three categories, the conventional ordinary type, waterproof type and high temperature resistance. The structure of the ordinary type is a conventional type, but it is not waterproof. The waterproof type has a high sealing performance, no gaps, and is basically integrated. , High temperature resistance is mainly the high temperature resistance of the material, this is not easy to see, it can only be tested with a soldering iron. Three, press gram to judge Different types of pressing force are different, there are 160~300gf options; Four, according to appearance style According to the terminal form, it can be divided into: pin type and patch type. According to the packaging method, it can be divided into: bulk manual plug-in, SMT chip packaging, DIP plug-in taping packaging. Through the above three, we can roughly judge the type of the touch switch. So, if we only see the touch model, how can we judge which touch switch is?

At this time, we use the reverse push method. The number 160~300gf represents the pressing force of the tact switch, the first part of the second model, most manufacturers represent what product this is, such as useful TS stands for tact switches, SS stands for toggle switches, etc. , And then the size of the tact switch is generally divided into dimensions according to the external dimensions: 6*6*5, 6*6*4.3, 6*3.6*4.3, 3.5*6*4.3 and other sizes, so when these numbers are combined At the time, the high probability is the size of the touch switch. The remaining numbers may represent colors and materials, depending on how manufacturers use different numbers to define their colors.