Touch switches have been widely integrated into everyday life, such as in electronic and communication devices. However, black spots on the touch switch blades and the switch pins turning light green indicate oxidation of the photoelectric switch. What causes the oxidation of touch switches?

The storage of touch switches without proper sealing can accelerate the overall oxidation process of the internal structure due to extensive contact with gases.

Secondly, the touch switch itself has poor sealing characteristics.

The electroplating material quality of the contact switch for the shrapnel is not very good, making it very prone to black spots on the shrapnel.

Four, the internal structure of the touch switch is frequently exposed to water droplets or steam. If frequent handwashing leads to immediate contact with the switch, allowing water to seep into the gaps between the switch.

The above outlines four key reasons for the oxidation of touch switches. Oxidation in touch switches can lead to poor contact, significantly increasing the likelihood of failure. Therefore, it's advisable to opt for reputable touch switch brands with good quality, rather than opting for cheaper switches blindly. Additionally, when using touch switches, special attention should be given to preventing water droplets or moisture from infiltrating the internal structure of the switch.