Thyristor modules belong to a type of high-power semiconductor device with a module packaging form and a four-layer structure with three PN junctions. This type of thyristor module is very small in size and has a compact structure, playing a significant role in both maintenance and installation. There are many types of thyristor modules, such as crimping-type thyristor modules and welding-type thyristor modules. Many people are not very clear about the differences between the two. Let’s distinguish them in detail below.
In terms of current, welding-type modules can achieve a current of 160A, while crimping-type modules can reach a current of 1200A. This means that modules with currents below 160A are not only available in welding-type but also in crimping-type.
In terms of appearance, welding-type modules are far less aesthetically pleasing than crimping-type modules. Crimping-type modules are integrally formed, with very standardized technology, while welding-type modules may have welding marks in certain areas, but this does not affect their use.
As is well known, crimping-type thyristor modules have a very large market share, and many companies use crimping-type thyristor modules. The reasons for this may be that they have a very pleasing appearance. In addition, from a price perspective, the cost of welding-type thyristor modules is much lower than that of crimping-type thyristor modules.