Attention should be paid to the use of patch touch switch.
Patch light touch switch in use to have a sense of proportion, to pay attention to some problems occur, the basic precautions we also need to understand, to avoid damage.
The use of light touch switch is basically more common, but for the operation of the switch there will be a lot of problems to pay attention to, then whether you have a detailed understanding of the basic precautions for the use of light touch switch and other aspects of common knowledge? This switch slightly improper use will lead to switch failure. The situation happened. As non-technical personnel, you must know very little about this knowledge at ordinary times, then the following will give you a detailed explanation of the patch light touch switch use of the basic precautions.
Basic precautions for SMD touch switch
Points for attention
In the use of the patch touch switch, please be careful not to let foreign matter intrusion, even some small impurities or foreign matter, will lead to the impact of the switch button sensitivity is reduced.
Points for attention two
Secondly, in the normal use of light touch switch, we should try our best to switch the key at the center of the switch, do not slant or side press the switch, so as not to cause the switch will lead to button jam and button bump phenomenon.
Points for attention three
In the welding process, please pay attention to the welding temperature should not be too high, otherwise it will cause the added rosin atomization into the switch and cause internal adverse conditions, but also pay attention to control the time, so as not to cause switch welding or damage.
Points for attention four
Light touch switch in reflow soldering, how much will be left in the operation of some excess tin or, at this time, do not use industrial alcohol for internal cleaning of the switch, because industrial alcohol will corrode the metal part of the switch, thereby making the switch out of function. For the treatment method can use some rust-proof oil to wipe, one can be used to remove excess tin on the switch internal connection, the other is also for the use of the switch can play a certain role in rust prevention.
Points for attention five
When installing the light touch switch, please note that the wiring should be arranged neatly and properly arranged. Do not stack all the connections of the switch joints together, in order to avoid the frequent use of the switch in the process, because it may cause the internal circuit of the switch can not heat, thus causing safety and other accidents.
Points for attention six
Because of the small distance between the contacts of the SMT key switch, it is easy to lead to short-circuit fault if there is oil pollution and water vapor. So generally in the daily use of the switch, we should keep the switch button clean, but also do not wet hands to the case of button switch, in order to avoid electric shock accidents.