Solder wire is the most widely used in electronics factories. It is a solder material used primarily with soldering irons or lasers. The solder wire looks very similar to the fuse we encountered in life, so some people will ask what is the difference between the fuse and the solder wire? Today, the technicians of Shenzhen Xinghongtai manufacturer introduce you: 

First, the solder wire

Solder is an alloy of tin and lead. The ratio of tin to lead is different. The melting point of lead-free solder wire and the temperature required for soldering are different. Different soldering parts need different solder.

The role of the solder wire: the solder wire is added to the surface and the gap of the electronic original device by the metal as the filler, and the fixed electronic original device becomes the main component of the solder. The composition of the solder wire is inseparable from the quality of the solder wire, which will affect the solder. The chemical and mechanical properties and physical properties of silk.

Second, the fuse

The fuse is also called a fuse, which is defined by the IEC127 standard as "fuse-link". It is an electrical component that is installed in the circuit to ensure safe operation of the circuit.

The function of the fuse is: when the circuit is faulty or abnormal, the current is constantly rising, and the increased current may damage some important components or valuable components in the circuit, and may also burn the circuit or even cause a fire. If the fuse is correctly placed in the circuit, then the fuse will cut off the current when the current abnormally rises to a certain height and a certain time, thereby protecting the safe operation of the circuit.

The difference between the fuse and the solder wire:

1. From the above point of view: the fuse color is darker, and the solder wire is brighter.

2. from the degree of softness: the fuse is relatively soft, although the solder wire has a soft, but the touch is still a little harder on the solder wire.

3. Analysis from the melting point: The fuse is a high melting point metal product material (lead product) with a melting point of about 327 degrees. However, the melting point of the solder wire is generally between 183 and 250 degrees. Therefore, the solder wire is easily melted. If the melting point of the solder is lower, is it true that it can be used as a proof wire? The answer is because, because of the high temperature of the solder The next one may not be separated, and may be stuck together due to the lack of flux such as rosin. So, don’t use solder as a fuse.