While the ripple current handling capability of most aluminum electrolytic capacitors is specified for ambient temperature around the capacitor, for the MLP and MLS the ripple current capability is specified for the case temperature, and is similar to how current capability is specified for semiconductor devices. The previous slide showed Өcc, the core-to-case thermal resistances for MLP and MLS capacitors. The maximum permitted internal temperature for the MLP is 88°C and for the MLS is 125°C. Determine the ripple current capability in the application by calculating the expected temperature rise as shown here. Separately determine the thermal resistance from the case to ambient, Өca. Ripple current capability decreases with increasing rated voltage because of increasing ESR. For the lowest rated voltage the 85°C case, 20kHz ripple current capability for the MLS is 19.9A and for the MLP is 9.8A. For the same rating snap-in capacitor the MLP has about 25% higher ripple current rating and the MLS has about 2½ times.