EDH475M250S9RAA

Introduction

The EDH475M250S9RAA is a type of aluminum electrolytic capacitor, which are widely used in electrical and electronic devices for storing electrical energy and filtering the signals. Aluminum electrolytic capacitors utilize the electrolytic principle to set up a capacitor with high capacitance compared to other types of capacitors. Their primary application is to provide a large capacitance with minimal space.

Application Field and Working Principle

The EDH475M250S9RAA application fields mainly includes computers, telecommunications equipment, industrial automation, home appliances, consumer electronics, etc. The aluminum electrolytic capacitor is mainly composed of aluminum foil, insulating paper, organic solvent, and electrolytic solution, which forms an important part of the modern electronic device.

The working principle of aluminum electrolytic capacitors is based on the principle of electrolytic reaction. First, one end of the aluminum foil is coated with the anodic oxide of the capacitor anode, which acts as an electrolyte. The capacitor positive side is also connected with a conductive ring that separates the two conductor. Then the liquid electrolyte is poured to fill up the gap between the two conductors. When an electric current is applied to the two electrodes, ions in the electrolyte are discharged from the anode and diffuse to the cathode, which generates an electric field across the anode. This electric field acts as an electric barrier, increasing the capacitance. In addition, under the action of an electric field, the electrolyte molecules in the electrolyte produce electrochemical oxidation and reduction reactions on the two surfaces of the aluminum foil. This electrochemical reaction helps to permanently form an oxide layer on the anode of the aluminum foils.

In addition, it has another working principle, which generally refers to the behavior of a small electric current flowing through the capacitor when a direct current is applied to it. This phenomenon is called self-heating, which is related to the self-discharge capacitance of the capacitor. When an AC voltage is applied to the capacitor, the electric field will fluctuate accordingly and cause a current to flow through the capacitor. This current is the self-heating current of the capacitor, and it fluctuates with the AC voltage. The amount of current varies according to the polarity of the AC voltage.

Advantages

The advantages of aluminum electrolytic capacitors are high energy density, long life, small volume, and low cost. With the development of technology, the structure of aluminum electrolytic capacitor has been constantly improved, and it has mainly three types of structure, namely flexible sealed type, cylindrical type and flat type.

Regarding energy density, the aluminum electrolytic capacitor has a much higher energy density than other capacitors. For example, EDH475M250S9RAA provides a much higher amount of energy storage for a given volume when compared to the other types of capacitors. Its long lifetime is another beneficial factor. The aluminum electrolytic capacitor has a much higher maximum lifespan compared to other capacitors. In addition, its small size means it can be used in places where other capacitors cannot, thus allowing for more technologically advanced designs.

Moreover, the aluminum electrolytic capacitor can be manufactured at a lower cost than other forms of capacitors, making it very attractive for many applications. In addition, it has excellent performance and durability in hostile environments, making it suitable for use in applications where other types of capacitors may not be able to operate properly.

Conclusion

The EDH475M250S9RAA is a type of aluminum electrolytic capacitor. It is widely used in computers, telecommunications equipment, industrial automation, home appliances, and consumer electronics due to its high energy density, long life, small volume, and low cost. It consists mainly of aluminum foil, insulating paper, organic solvent, and electrolytic solution, and its working principle is based on the principle of electrolytic reaction. In addition, it features self-heating effects, which gives it long life and superior performance compared to other capacitors.