Kt Kingtronics Solid Polymers and Aluminum Electrolytics Capacitors

Aluminum electrolytic and solid polymers, both have advantages and disadvantages when comparing to one another. Designers need to be aware of these differences when determining which capacitor type is best suited for use in their application.

The most notable difference between aluminum electrolytics and polymers is their electrolyte. Aluminum electrolytics have a liquid electrolyte while polymers have a solid electrolyte. These differences play a major role in the characteristics of each type of capacitor.

The solid polymer electrolyte gives the polymer capacitors advantageous characteristics over liquid aluminum electrolytic capacitors.

The advantages are as follows:
Lower ESR at high frequency
Lower D.F. / tan δ
Higher ripple current ratings
Stability over temperature
Wider operating frequency range
Long life

Following product list of Kingtronics Solid Polymer Electrolytic Capacitors for your reference.
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