For both the capacitors the constant Ea, Best are calculated as per relation 2 and 3 using the parameters in datasheet.
Maximum rated voltage Vo for capacitor is specified as 450V while the average operating voltage Vop is 320V. The required thermal data for case temperature for electrolytic capacitors is acquired precisely using integrated-circuit based analog temperature sensors, LM35 which gives an output of 10mVolts corresponding to the temperature change of 1°C.