X-ray observation of electrolytic capacitors

We conducted visual inspections and internal observations using X-ray CT for normal products and degraded products!

Regarding aluminum electrolytic capacitors that have malfunctioned due to aging degradation, we conducted an internal condition check using X-ray CT, and we would like to introduce the findings. In the degraded products, the internal pressure increased due to gas generated from the decomposition of the electrolyte, and as degradation progressed, there was a risk of the electrolyte being ejected due to the opening of the pressure relief valve. Additionally, it is believed that the gradual volatilization of the electrolyte due to deformation of the rubber cap, which leads to a decrease in airtightness, ultimately results in capacity loss and open failure. 【Overview】 ■Appearance Comparison - Conducted visual inspection of both normal and degraded products. ■Internal Comparison using X-ray CT - Conducted internal observation of both normal and degraded products using X-ray CT. *For more details, please refer to the PDF document or feel free to contact us.

Other inspection equipment and devicesX-ray inspection equipment