Avoiding corrosion of LEDs is an important part of improving the reliability of LEDs. This article analyzes the causes of corrosion of LEDs, and gives the main methods to avoid corrosion-to avoid LEDs close to harmful substances, and effectively limit the concentration level of harmful substances and the ambient temperature.
Q: How to avoid LED corrosion?
Keywords: LED, corrosion, product performance, optoelectronic components
The reliability of LED products is one of the important specifications used to estimate the life of LED products. Even under most different conditions, general LED products can continue to operate. However, once the LED is corroded, the LED is subjected to a chemical reaction in the surrounding environment, which will reduce the performance of the LED product.
In order to avoid corrosion of the LED, the best way is to avoid the LED from approaching harmful substances. Even a small amount of harmful substances can cause LED corrosion. Even if the LED is only in contact with corrosive gas during processing, such as the machine in the production line, it may have adverse effects. In these cases, it is usually possible to observe whether the LED components are damaged before the actual system setup. In particular, should avoid being polluted by sulfur (Sulfur).
Here are some examples of potentially corrosive substances (especially hydrogen sulfide) including:
O-RING (O-RING)
washer
Organic Rubber
foam pad
Sealing rubber
Sulfur-containing vulcanized elastomer
Shock absorbers
If some harmful substances cannot be completely avoided, LEDs with higher corrosion resistance should be used. However, please remember-the effect of limiting corrosion depends on the concentration of harmful substances. Even if you choose more durable LEDs, you should minimize the exposure of these LED materials.
Generally, heat, humidity and light can accelerate the corrosion process. However, the main influencing factors are the concentration level and temperature of harmful substances, and limiting these two will be an important method to protect LEDs.
