A755KS687M0JAAE014

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Aluminum - Polymer Capacitors

The A755KS687M0JAAE014 is an aluminum polymer capacitor. This type of capacitor offers improved capacitance-voltage characteristics and volumetric efficiency over traditional aluminum electrolytic capacitors. It is widely used in applications such as voltage regulation, motor drives and circuit damping.

Structure & Working Principle

An aluminum polymer capacitor consists of three layers: electrode, solid electrolyte, and non-solid electrolyte. The solid electrolyte is a layer of the capacitor which can absorb electricity and distribute it across the capacitor to build and maintain an electric field of a particular strength. The non-solid electrolyte is an insulator and prevents the current from leaking from one side of the capacitor to the other. It acts as a barrier between the electrodes and solid electrolyte.

When a voltage is applied across the capacitor, electric charges begin to accumulate on each of its plates. This creates an electric field between the plates, and a capacitance is formed. The capacitance is then expressed as a voltage drop ratio between two points. The capacitance of the aluminum polymer capacitor is determined by the size of its plates and the space between them.

Applications

A755KS687M0JAAE014 is widely used in applications where large capacitance values and small form factor are needed. Its small size and high capacitance-voltage ratio make it suitable for applications such as power supply filtering, power line regulation, and motor drive circuits. It is also used in systems that require improved heat dissipation and noise suppression.

Due to its high volumetric efficiency and low equivalent series resistance (ESR), aluminum polymer capacitors are used in high frequency noise filtering circuits. They are also used in active harmonic filters and pulse transformer circuits. The low ESR of these capacitors allows for faster responses and improved reliability in power circuits.

Advantages

The aluminum polymer capacitor has several advantages over traditional aluminum electrolytic capacitors. Its volumetric efficiency is much higher, while its ESR is lower, thus making it an ideal choice for high frequency noise filtering circuits. Its leakage current is also much lower, which reduces the power dissipation during operation. Furthermore, its dielectric strength is higher, providing better electrostatic discharge (ESD) protection. Finally, the aluminum polymer capacitor has a significantly longer lifetime than other types of capacitors.

Conclusion

The A755KS687M0JAAE014 aluminum polymer capacitor is a versatile component used in a wide range of applications. It offers a high capacitance-voltage ratio, low ESR and improved volumetric efficiency. It is used in power supply filtering, power line regulation, active harmonic filters and pulse transformer circuits. It also has advantages such as low leakage current, high dielectric strength and a long lifetime.

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