Polymer Capacitors- Your Solution When MLCC Lead Times Are Tight
Are the Ta Polymer SMD Automotive Grade Capacitors an alternative in MLCC supply chain issue?
Applied power plays a large role in the life of aluminum electrolytic capacitors. When no power is applied, the electrolyte attacks the aluminum oxide dielectric and lowers the voltage capability of the part. Once powered, the electrolyte is still reducing the dielectric, but the leakage current is working at the same time to reform the dielectric layer and bring the system to a steady state equilibrium.
A supercapacitor is widely used for RTC backup application to provide power to RTC circuit in electronics when the power source to the system is disconnected. Self-discharge characteristics are one of the important characteristics to determine the backup time. Self-discharge current is often confused with leakage current characteristic. In this application note, the difference between leakage current and self-discharge characteristic is explained and importance of self-discharge [...]
KEMET’s dielectric offerings are expansive with different variations of ceramic, tantalum, film and aluminum-based capacitors. In addition to these varieties, we also offer multiple product grades to fit your needs: commercial, automotive, commercial-off-the-shelf (COTS), military, space, and custom. Many people are familiar with most of these classifications but there is still some confusion on what exactly a COTS classification represents. What are