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Differences Between Crimping and Welding Type Thyristor Modules

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.

Welding Type Module
Welding Type Module
Crimping Type Module
Crimping Type Module
  1. 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.

  2. 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.

  3. 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.

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