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ELNA CAPACITORS

ELNA CAPACITORS

ELNA CAPACITORS

Advantages: ELNA aluminum electrolytic capacitors with low resistance, high efficiency and high durability of the capacitor. Their applications are extensive and excellent. We specialize in automotive aluminum electrolytic capacitors, and acoustic aluminum electrolytic capacitors.

ELNA CAPACITORS
ELNA CAPACITORS
ELNA Aluminum electrolytic capacitors

Introduction:

The anode in the aluminum electrolytic capacitor is made from a high-purity aluminum foil with an aluminum oxide thin film dielectric on its surface. The capacitor is structured using an electrolytic paper containing an electrolytic solution and an aluminum electrode foil for contacting the cathode. The thickness of the anode oxide thin film is the distance between the electrodes in the section on how capacitors function. The thickness of the anode oxide thin film in an aluminum electrolytic capacitor is selected by the required withstand voltage. Large amounts of charge can be stored in a small capacitor because the value for the distance between the electrodes can be made extremely small. This occurs because the value for the electrode surface area can be increased by roughening the surface, and because the dielectric constant is large.

Aluminum electrolytic capacitors are made by layering the electrolytic paper between the anode and cathode foils, and then coiling the result. The process of preparing an electrode facing the etched anode foil surface is extremely difficult. Therefore, the opposing electrode is created by filling the structure with an electrolyte. Due to this process, the electrolyte essentially functions as the cathode. The basic functional requirements for the electrolyte are as follows: 


ELNA CAPACITORS

ELNA Aluminum electrolytic capacitors:

1.Chemically stable when it comes in contact with materials used in the anode, cathode, and electrolytic paper.  

2.Easily wets the surfaces of the electrode. 

3.Electrically conductive. 

4.Has the chemical ability to protect the anode oxide thin film and compensate for any weaknesses therein. 

5.Long-term stability and characteristics that take into consideration such things as toxicity. 

The grown oxide layer, resulting from the solute and the solvent (electrolyte), greatly controls the performance of the aluminum electrolytic capacitor.  

 

Cautions When Using Aluminum Dielectric Capacitors

Of the numerous types of electronic components, only aluminum electrolytic capacitors are structured in such a way that a liquid is held in the active element. Also, only aluminum electrolytic capacitors have generated vapors from within the active element that must be vented to the outside. 

If the aluminum electrolytic capacitor is used improperly, these unusual characteristics can cause severe damage to the electronic product. In order to assure proper usage of the aluminum electrolytic capacitor, be sure to understand and be wary of the following requirements:

ELNA products categories :
1. Electric Double Layer Capacitors
2. Chip Type Capacitors
3. Solid Conductive Polymer Aluminum Electrolytic Capacitors
4. Aluminum Electrolytic Capacitors for Audio
5. Dip Type Capacitors 

Cautions When Using Aluminum Dielectric Capacitors

ELNA CAPACITORS