Generally speaking, the rust of the inductor pin occurs on the plug-in inductor. Because the plug-in inductor (such as the color ring inductor) has long pins and is often exposed to the air, it is easier to rust than other chip inductors! So how can we prevent the inductance pin from rusting?

 

First of all, as mentioned above, the pins are easy to rust when exposed to the air. In fact, oxidation occurs. Oxidation mostly occurs in the rainy season. In order to prevent rust, it is necessary to control the indoor humidity and avoid prolonged contact between the inductor and the humid space.

 

Second, if the flux is added to the inductance pin during soldering and added too much, the flux will remain after soldering. Long time drying can also lead to slight oxidation and look like rust, so the flux cannot be too much.

 

Third, the inductance pin should be scraped clean in time after soldering, otherwise there will be similar rusty yellow spots on the pin surface.

 

Fourth, if the solder on the inductance pin is used for too long, its purity will decline and it will be easy to oxidize, so it is necessary to replace the new solder on time.

 

In the process of using and storing the inductor, we need to do a good job of maintenance in order to make the inductor play its role better!