Comparison of Aluminum Capacitors
Aluminum Electrolytic Capacitors
- Stable capacitance values at high temperature
- High voltage ratings
- Low leakage current
Aluminum Hybrid Polymer Capacitors
- Low ESR
- High ripple current characteristics
- High stability over the temperature range
- Low leakage current
- High lifetime performance
Construction
Wound Capacitor
Layer structure
![The aluminum foil of the anode is formed by anodic oxidation before winding, so that the dielectric (oxide layer) is strengthened. The wound capacitor is completely soaked in electrolyte. This electrolyte is evenly distributed through the paper layer. In addition, the paper layer ensures a distance between the anode and cathode foil.](/components/media/o742424v558%20cm-inner-structure-aluminum-caps.png)