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Working Principle and Selection Method of Plug-in Light Touch Switch

Release time:2019-03-30    Clicks: Click

 
There are some working principles on the plug-in touch switch that need to be clear to you, and the selection method can not be ignored. The specific situation is described in detail below.
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The working principle of plug-in touch switch:
In fact, the working principle of this kind of switch is similar to that of key-press switch. It is composed of constant open contacts and constant closed contacts. In plug-in light-touch switches, the function of constant open contacts is that when the pressure is applied to the constant open contacts, the circuit will be turned on; when the pressure is removed, the original constant closed contacts, i.e. the so-called disconnection, will be restored. 。 This pressure is the action of opening and closing the button with our hands. In short, the working principle of the four-legged plug-in touch switch is well understood.
Eye selection method for plug-in light touch switch:
The quality of the switch will directly affect the use of the product. So when selecting plug-in light touch switch, we should pay attention to its solderability, protection, conduction and other physical properties. Its service life is long, its tactile feeling is rough, and whether the plating is oxidized or not. These external surface factors will also determine the quality of plug-in light touch switch. In order to reduce resistance, tin-plated and silver-plated pins will be used, so high-quality plug-in light touch switch, the thickness and process of tin-plated and silver-plated pins should be controlled. The final tin-plated silver is above 0.3um, thin tin silver is 0.2um, and 0.1um is white. After the plug-in touch switch is tinned and silver-plated, whether its protection has the function of waterproof and dust-proof, or the best tinned and silver-plated treatment will be oxidized by air!
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