ALUMINUM ELECTROLYTIC CAPACITORS （铝电解电容器）.pdfVIP

ALUMINUM ELECTROLYTIC CAPACITORS Application Guidelines for Aluminum Electrolytic Capacitors 1. Circuit Design (1) Please make sure the application and mounting conditions to which the capacitor will be exposed to are within the conditions specified in catalog or alternate product specification (Referred to as specification here after).The capacitor may be damaged, catch fire, or vent if it is used beyond the specified conditions in the catalog or alternate product specification. (2) Operating temperature and applied ripple current shall be within the specification. q The capacitor shall not be used in an ambient temperature which exceeds the operating temperature specified in the specification. w Do not apply excessive current which exceeds the allowable ripple current. (3) Appropriate capacitors which comply with the life requirement of the products should be selected when designing the circuit. (4) Aluminum electrolytic capacitors are polarized. Make sure that no reverse voltage or AC voltage is applied to the capacitors. Please use bi-polar capacitors for a circuit that can possibly see reversed polarity. Note: Even bi-polar capacitors can not be used for AC voltage application. (5) For a circuit that repeats rapid charging / discharging of electricity, an appropriate capacitor that is capable of enduring such a condition must be used. Welding machines and photo flash are a few examples of products that contain such a circuit. In addition, rapid charging / discharging may be repeated in control circuits for servomotors, In which the circuit voltage fluctuates substantially. For appropriate choice of capacitors for circuit that repeat rapid charging / discharging, please consult Nichicon. If excess a rush current due to drastic charge/dis-charge was appl