Some Design and Technical Advantages of Light Touch Switches

 

There are some design and technical advantages of touch switch, including many, which is why you like to use this kind of switch, so we decided to update the technical and design advantages of these aspects regularly to make it easier for you to use these light switch better.

The key factors of light touch switch are its protection, solderability, conduction reliability, life, handle, production process and installation size, which determine that the lead base material of light touch switch is first pin base material, and the lead base material of light touch switch is brass or phosphorus copper (low grade is iron).

In order to reduce contact resistance, pins are basically silver plated. SO2 gas in the air will be oxidized when silver meets, which directly affects the solderability and contact resistance of the switch. Therefore, high-quality light-touch switches should be controlled in the silver plating thickness of pins and silver plating process. The order of silver plating on the market is as follows:

Silver plating thickness: 0.3 um or more (silver), 0.2 um (thin silver), 0.1 um (white).

Silver plating process: base material pre-plating nickel and silver, base material pre-plating copper and silver, base material direct silver plating, whether the base material after silver plating has protective agent treatment or whether the switch has dust-proof and waterproof function is very critical, otherwise even the best silver plating treatment, the switch will be oxidized.

Secondly, the key factor affecting the reliability of conduction is the structure of contact point. Because the function of touch switch is contact point and shrapnel conduction, the larger the contact surface is, the better the contact surface is. The contact surface is determined by the structure. There are probably three types of structures in the market. The order of advantages and disadvantages is as follows:

Bubble (crater type) "O contact", grooved type "2 contact" and flat bubble type "1 contact"

Above is the detailed introduction of the light touch switch, I hope you can take it seriously when you use it.