With the development of automotive electronics, in addition to smaller and lighter requirements for the electronic components used, the market also requires higher accuracy. In order to respond to faults, malfunctions, and misoperations, the safety demand for quickly detecting abnormalities such as open circuits in peripheral circuits is also increasing.
On August 8th, the housewarming ceremony of Wenzhou Hanjing Electronics Co., Ltd. of He Chunlin, director of the Chongqing Chamber of Commerce in Yueqing City, was invited to attend. And take a group photo.
We all know that micro switches are very sensitive and have a wide range of applications, so what aspects should we pay attention to when using micro switches? The following small series will take you to analyze it. Micro Switch 1. The specification value of the action characteristic will not cause the switch to fail within a certain range, and will not affect the use. 2. During the welding process, the welding should be completed quickly, and no excessive pressure should be applied to the terminals. 3. When the use scene is small current and voltage, low-power circuit type products are generally used. Correct use of the micro switch can not only give full play to the advantages of the product, but also prolong the service life of the switch.
The toggle switch is almost used in the circuit, and its components have semiconductor diodes, which play a very important role in the components. Semiconductor diode is one of the earliest semiconductor components and has a wide range of applications. The diode is a p-n junction formed by a p-type semiconductor and an n-type semiconductor body. A space charge layer is formed on both sides of the interface, and it has the ability to build its own electric field. . When the fluctuating switch is not energized, the diode is in the state of electrical equilibrium because the diffusion current caused by the difference in carrier concentration on both sides of the p-n junction is equal to the drift current caused by the self-built electric field.
As we all know, the seemingly inconspicuous appearance of the tact switch is of great practical value. When we use the tact switch, we not only experience its excellent conduction performance, convenient control methods, etc., but also experience its comfortable button feel. As for the tact switch itself, it has precise structure, material, craftsmanship, etc. So among the many factors, what affects the overall quality of the tact switch? Take a look. 对于轻触开关而言，其弹片与触点的材质及镀层是为关键的。弹片与触点的材质和工艺不仅需要考虑到其电气性能，还要兼顾到其使用寿命的问题。一般情况下，为了降低弹片与触点的接触电阻而多使用黄铜或者磷铜的材质，而电镀都为镀银层。如果是遇到铁质的引脚，镀银可以隔绝空气中的SO2气体，使其远离腐蚀元素；但防腐蚀时间较短。而使用黄铜或者磷铜的引脚更将会更好。因此，材质和镀银层的厚度以及其工艺处理就成为决定引脚综合性能的关键，在如今的市面上，市场上为优质的镀银厚度在0.3微米以上，与劣质的厚度甚至能拉开三倍的差距。而镀银工艺也有着千差万别的影响，部分引脚直接进行镀银，而有的采用多层电镀工艺，先镀镍或预铜等等。