The upgrade of the AEC-Q200 standard promotes the overall improvement of the reliability of automotive capacitors

The trend towards electronic and intelligent vehicles has opened up new growth opportunities for the capacitor industry. Our series of products that meet the latest AEC-Q200 Rev E standard have been verified to operate stably in ambient temperatures ranging from -40°C to 150°C, with vibration levels increased to 20Grms, meeting the most stringent engine compartment installation requirements.

Technological innovation focuses on three aspects: first, developing a conductive polymer material system that can withstand high temperatures of 150°C, replacing traditional electrolytes; second, using silver alloy terminals instead of traditional tinned copper wires, which improves the connection reliability of the product threefold in temperature cycling tests; third, optimizing the internal stress buffering structure, which reduces parameter drift by 60% in mechanical impact tests.

The product verification system has undergone a comprehensive upgrade, incorporating targeted projects such as sulfurization resistance testing and condensation testing. The accelerated life testing requirement has been extended from 1000 hours to 2000 hours, and the failure rate standard has been tightened from 50 parts per million to 20 parts per million. These requirements have prompted the implementation of a full-process traceability system in the production line, allowing each product to be traced back to its raw material batch, production process parameters, and test data.

Market analysis indicates that with the increasing penetration of electric vehicles and the widespread adoption of assisted driving systems, the usage of capacitors per vehicle has risen from 800-1000 in traditional cars to 2000-3000. In particular, the demand for thin-film capacitors used in battery management systems and motor controllers, as well as MLCCs for in-vehicle infotainment systems, has seen the most significant growth. The industry is developing product lines specifically designed for 800V electrical platforms, with voltage ratings being increased to over 1200VDC.