Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are electronic components that are employed to store and regulate electrical energy in applications that require high capacity and high voltage ratings. These capacitors are based on a traditional device called an electrolytic cell, in which a conductive solution, usually distilled water, is soaked into a porous substrate that acts as an electrolyte. This electrolyte stores electrical charge to be transferred later on. Depending on the type of electrolytic cell used, it can be possible to store energy at a fraction of the cost of other more traditional means.

EKZM100ETD152MH20D is an aluminum electrolytic capacitor with a capacity of 100uF, a voltage rating of 15 VDC, and a case size of 20mm. It is a cylindrical device with contact pins that can fit onto PC boards or PCBs. The construction of this aluminum electrolytic capacitor is based on two layers of etched aluminum foil which act as the electrodes of the capacitor. The anode plate is etched with a pattern of dimples, while the cathode plate is etched with a thicker pattern, meaning more area is covered compared to the anode plate. This allows for more charge and discharge capabilities, as well as a higher capacitance value due to the increased area of the plates.

The working principle of this aluminum electrolytic capacitor is based on how charge is stored. When the voltage applied to the capacitor is greater than the amount of charge on the capacitor, a current starts to flow of charge from the anode to the cathode. This current ions the electrolyte solution, thus increasing the capacitance and the charge on the capacitor. Once the voltage is reduced, the ions are released back into the solution where the charge on the capacitor is reduced. This process continues until the voltage is low enough for the ions to remain stable.

The EKZM100ETD152MH20D aluminum electrolytic capacitor is widely used in general power supplies, signal loops, filtering, and decoupling applications for DC circuits. It has a low ESR rating and low leakage current, making it suitable for high frequency AC applications such as switch mode power supplies as well. This aluminum electrolytic capacitor is also commonly employed in power factor correction circuits for AC power supplies, as well as used to build capacitive discharge ignition systems for spark ignition engines. The main advantage of this component is its reliability, since it can endure high operating temperatures and harsh environments, making it perfect for automotive electronics.

In conclusion, aluminum electrolytic capacitors have a wide range of applications and are usually the go-to device for power supply and DC circuit related projects. The EKZM100ETD152MH20D aluminum electrolytic capacitor is a reliable and high performance component with a wide range of possible applications. It is typically used in applications that demand high capacitance and voltage ratings, such as power supplies and power factor correction circuits.