50WXA470MEFC16X16

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Introduction

Aluminum electrolytic capacitors, also known as electrolytic capacitors, are type of capacitors that use an aluminum oxide film as the dielectric. They are used in numerous applications and are often seen in power supplies, signal filtering, and timing circuits. Here we will discuss the aluminum electrolytic capacitor model 50WXA470MEFC16X16, its application field and its working principle.

Design and Construction

The 50WXA470MEFC16X16 is a non-polarized aluminum electrolytic capacitor with a solid, aluminum oxide film as its dielectric. It requires a voltage of 10V to 50V, and its rated capacitance is 470µf. The capacitor is commonly available in either the radial leaded type (see Figure 1a) or the axial leaded type (see Figure 1b).

Figure 1a. Radial leaded type (left) and Figure 1b. axial leaded type (right) of 50WXA470MEFC16X16 aluminum electrolytic capacitor

The dielectric used in an electrolytic capacitor must be specifically designed to be highly conducting of metal ions. This is achieved by making the oxide film extremely thin, allowing it to be broken down by the electric field, creating a mobile ionic current. The 50WXA470MEFC16X16’s dielectric is composed of a solid, aluminum oxide film, which is deposited on its anode plate by anodic oxidation.

Working Principle

Aluminum electrolytic capacitors function using the same principle as an electric double layer capacitor. When a voltage is applied across its terminals, it creates an electric field across its dielectric, forming a positive and a negative charge on either side. This charge separation is caused by the oxide film’s ability to temporarily immobilize metal ions from the electrolyte. These charges create an electric field, which in turn creates a capacitance.

Application Field

Aluminum electrolytic capacitors, including the 50WXA470MEFC16X16, have numerous applications. They can be used as part of a filter network, for voltage regulation in power supplies, and for timing applications. Since the solid aluminum oxide dielectric enables these capacitors to store a relatively large amount of charge, they are also often used to provide voltage and current smoothing in high current transient devices.

Conclusion

In conclusion, the 50WXA470MEFC16X16 aluminum electrolytic capacitor is a highly versatile component. It can be used for a wide range of applications from timing applications to voltage and current smoothing in high current transient devices. Its solid aluminum oxide dielectric allows it to function using the same principles as an electric double layer capacitor to create a capacitance when a voltage is applied across its terminals.

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