Is a high-power electric soldering iron good or a low-power one?
The electric iron does not exist, the power is high or the power is small!
There are many kinds of electric power, the smaller ones are 15 watts, 20 watts, the larger ones are 200 watts, 300 watts, and the pistol-style 500 watts. When performing welding work, the power of the soldering iron must be determined according to the welding object, and sometimes the power of the electric contact iron must be selected according to the climate season (winter, summer). For soldering electronic components, 15 watts to 20 watts is fine. If you use 500 watts, once the soldering iron goes down, it will be a black hole. Of course, it is not good.
Whether the power is selected properly depends mainly on the melting and flow of the solder. This process does not take more than three seconds. If it is too long, it will damage the electronic components, if it is too short, the welding will not be reliable, and the solder joints will not be smooth.
Generally, soldering irons with small feet such as resistors, capacitors, transistors, and integrated blocks should use a soldering iron with a power of 20 watts, and increase the power level in winter to 25 watts. It is advisable to use 35 watts to 40 watts when welding heat sinks, transformers, shielding covers and other large-footed devices, or grounding large-area copper-clad plates. Therefore, according to the welding object, the power of the soldering iron should be properly selected. There is no such thing as high power or low power.
