Kemet t491 series smd tantalum capacitors kemet t491a684k020zt this 068microf plusmn10 20v case size a kemet smd tantalum capacitor is a precision moulded solid tantalum chip capacitor encapsulated in a flame retardant plastic case typical applications include decoupling and filtering in industrial and automotive end applications such as dcdc converters portable electronics telecommunications and control units kemet t491a684k020zt 068uf 10 20v smd tantalum chip case a