electrolytic capacitor

4. Extend the service life of electrolytic capacitors

4, 1 from the design to extend its life

Actually, to prolong the service life of electrolytic capacitors, the method is very simple, because it dies a natural death is mainly due to the result of the liquid electrolyte evaporation, if improve its impermeability, don’t let it evaporate, it is natural to extend the life of a. Such as EvoxRifa company design of double sealing system you can slow down the electrolyte evaporation rate.

Also, by adopting the overall around with electrodes of phenolic injection plastics cover and double the special seal of occlusal closely with aluminum shell, also can greatly reduce the loss of the electrolyte.

Extend the life of 4.2 from use

Reduce the ripple current can also prolong the service life and if ripple current is too large, can adopt the method of two capacitors in parallel to reduce them

Choose 4.3 on how to prolong the life span

When choosing electrolytic capacitors, in addition to want to choose the brand electrolytic capacitor, ensure the quality, but also leave allowance on the voltage and capacity. For example, the 220 v after the bridge rectifier dc voltage up to 300 v, but when choosing electrolytic capacitor at least choose 450 v voltage electrolytic capacitor. If the calculated needs 10 uf, had better choose 20 uf. These measures also can prolong the service life of electrolytic capacitors. Because capacitance equivalent resistance and the ripple current can make its internal temperature is higher than the environment temperature, so leave room is a must.