Application Guidelines For Tantalum Electroilytic （应用指南钽Electroilytic）.pdfVIP

Application Guidelines For Tantalum Electroilytic Capacitors For obtaining the most stable quality and sufficient Performance of the tantalum electrolytic capacitors,appropriate use must be made .Before use,confirm the use conditions and rating performance of the capacitors,and observe conditions specified by the specification.If use conditions you are going to apply are out of the specified range or are not specified,consult us by clarifying the conditions. Failure rate of capacitors is greatly affected by the ratio of the use voltage and the rated voltage(derating ratio).In designing circuits,reduce voltage appropriately by sufficiently considering required reliability of the equipment. 1.Design of Circuit 1.1 Operating Voltage Failure rate of capacitors is greatly affected by the ratio of the use voltage and the rated voltage(derating ratio).In designing circuits,reduce voltage appropriately by sufficiently considering required reliability of the equipment. ● For circuits with low resistance circuit, make the use voltage be 1/3 or under of the rated voltage, in general circuits,make the use voltage be 2/3 or under of the rated voltage, as shown in the below figure. ●In the case of low impedance circuit connected in parallel with a tantalum capacitor, it is likely that the capacitor is at the risk of failure caused by DC surge current, meanwhile please note charge stored in parallel- capacitor shall be discharged through other capacitors. ● In case of circuits with large instantaneous rush current or rapid charging/discharging circuits, connect the protection resistor of 3Ω/Vor more in series to the capacitor to limit the current to 300mA or less.when the protection resistor can not be inserted