Capacitor Resistances are RS and RP. RS is the ESR of the cap and it is the combined equivalent of RS and RP this is the AC resistance of the cap. RP is the insulation resistance of the cap, it is a measure of the amount of DC current that flows through the dielectric of a cap with a voltage applied. RP is typically 100,000M ohms or more. And RDA and CDA represent the capacitors dielectric absorption.