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Introduction to Specific Requirements of Light-touch Switch on User Side of Mobile Phone

Release time:2019-05-16    Clicks: Click

 
What are the specific requirements and problems of using side-press switch in mobile phones? Let's give you a detailed introduction.
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Now it is widely used in mobile phones, digital cameras and other electronic industries. Inside is a tiny metal shrapnel switch. The touch switch used by mobile phones is smaller than other switches. The touch switch on the mobile phone will feel crisp when pressed. Side-touch switches manufactured by Zhengmao Electronics are also widely used in the mobile phone industry.
On the side of the mobile phone, press the light touch switch requirement:
1. The size of the touch switch on the mobile phone side is small. It belongs to the patch touch switch and can be reflow soldered. For tape packaging, in order to improve the installation density of components on PCB, it can be installed on high-density small mobile devices.
2. Operating power: 100g, 130g, 160g. Silicone keys for mobile phones require touch, life and strength. But these three are mutually reinforcing negative factors. If one point rises, the other two points weaken.
3. High shrapnel requirements and crisp handle. Frequent extrusion can cause metal fragments to lose elasticity in fatigue and failure. So now most of the buttons are directly replaced by conductive rubber or pot switch hardware shrapnel, such as computer keyboard, remote control, etc.
4. Require halogen-free, obtain roHS environmental protection certification. Halogen-free flame-retardant, conductive and flame-retardant UL94-V0 level, with the progress of society, the requirements for environmental protection and halogen-free products are getting higher and higher. Many enterprises at home and abroad have or are requiring their suppliers to provide halogen-free products, and the use of halogen-free products is also increasing.
5. High quality and long life. Side press light touch switch housing material. The main switch brands in the market generally use PC materials. The characteristics of impact resistance, high temperature resistance and invariant characteristics are of great significance to the control of switches. The front panel and rear base of the side press light touch switch are made of PC material. This parameter manufacturer will produce different specifications according to the requirements of different customers. Big parameters make people work hard and feel strong. Of course, it also affects the lifetime of the key.
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