Soldering electronic components – what you need to know


Soldering is a process that fixes one or more components, one at a time, after dissolving and running a soldering tool in a joint. This method can be applied to a variety of electronic and electric process and can be done in order to combine certain components with roots attached to a circuit board. Keep in mind, though, that the solder metal has a lower melting temperature compared to the working piece.



There are different methods used for soldering, such as soft soldering and hard soldering. The first one, soft soldering, is suitable for fitting extremely small components that possess a low liquefying level of temperature. During this process, a tin-lead alloy serves as a space filler metal. Plus, in order to get plenty of heating, you need to use a gas torch as source of heat.

Hard soldering, on the other hand, unites two metal components after spreading them into the holes of the component. In this case, the space metal filler reaches extremely high temperatures that go above 840 Fahrenheit degrees.


Before starting the soldering activity, you need to take certain safety precautions. For example, never touch any element nor the tip of the soldering iron because they are incredibly hot and can cause severe burns. Also, it’s best not to touch the mains flex using the tip of the iron. The majority of the irons are outfitted with a heatproof flex that enables more protection. If you opt for a cheaper model that has an ordinary plastic flex you risk getting burned and suffering from an electric shock if touched by a hot iron.

Under no circumstances put the soldering iron on your workbench or in any other place except its own stand. You have no idea how many damages you can cause to that exposed surface.

Because during the melting smoke is created, it’s best to do this in a well-ventilated area. Otherwise, it can be irritating to your eyes. Try to avoid, as much as possible, to keep your head on the opposite side you are working to prevent breathing the smoke.



After each usage, make sure you watch your hands thoroughly. Many solder units contain lead which is known to be poisonous to the human body.

If you have the possibility, use a soldering iron that features a heatproof silicone cable that is much safer especially if you accidentally touch the hot iron during the process.

Before using the iron, place it its stand and plug the device in. In a few minutes, the tool should be ready to operate. Then, dampen the sponge lifting it out of the stand and holding it under a cold tap of water for a few seconds. You can squeeze the excess water because it’s important that the sponge is damp and not dripping wet.


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