The traditional MnO2 tantalum capacitor technology follows a recommended voltage derating of 50%, up to the rated temperature of the device. For applications that exceed the rated temperature, a linear derating is applied from 50% of rated voltage at rated temperature down to 33% of rated voltage at category temperature. KEMET’s series of traditional MnO2 capacitors includes all T49x and T510 series products. The same derating guideline is used for high temperature series products such as the T498 and T499 series. While the category temperature is much higher for these series, derating guidelines of 50% up to rated temperature and 33% of rated voltage at category temperature still applies.