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Electronics news

Temperature rating of printed circuit boards

Since PCBs are in objects around us, it is useful to know what temperature conditions they can withstand.

Can high temperatures damage a printed circuit board? What is the highest temperature they can withstand? What can happen to PCBs at high temperatures?

High temperatures can indeed damage a printed circuit board (PCB). Excessive heat can lead to a variety of problems, including solder joint failure, delamination of PCB layers, and component damage. To prevent such problems, it is critical to consider the allowable temperature of the PCB during the design phase.

The highest temperature a PCB can withstand depends on several factors, including the materials used, the type of components, and the specific application. Typically, standard FR-4 PCBs will tolerate temperatures up to 130-140°C. However, high-temperature resistant materials, such as ceramic PCBs, can withstand even higher temperatures, exceeding 350°C. It is very important to select the correct PCB materials and components depending on the intended operating conditions.