EEU-FC1H4R7B

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are energy storage components that are used in a wide range of electrical and electronic circuits. In many circuits, they are essential for the operation of the device. They are most commonly used for filtering, buffering, decoupling and blocking. Aluminum electrolytic capacitors are used in applications where high currents are required but only for short periods of time.

EEU-FC1H4R7B Application Field and Working Principle

The EEU-FC1H4R7B aluminum electrolytic capacitor is a polarized, non-solid electrolyte capacitor. It has an electrolyte filled with a solid oxide such as a ceramic oxide or a porous carbon sheet that acts as an electrical insulator and an anode. The electrolyte is often referred to as a separator and the carbon sheet is also known as the filter. The polarizing voltage applied to the anode and the separator forms an electric field that charges the normal capacitor.

The EEU-FC1H4R7B belongs to a wide range of aluminum electrolytic capacitors and its application field includes telecommunications, medical electronics, and automotive more precisely, the automotive lighting and HVAC systems. This type of polymer-based capacitor uses a flexible, corrugated case made of high temperature plastics that reduces the size of the components. Moreover, it offers excellent heat and vibration resistance and prevents leakage current from occurring as well as providing higher capacitance, low impedance, and a long life. Its working voltage is rated at 16V and its capacitance range starts from 47µF and reaches up to 10,000µF.

Aluminum electrolytic capacitors, such as the EEU-FC1H4R7B capacitor, operate using the same principle as a normal capacitor. However, they have a much higher capacitance rating and can hold a bigger charge than regular ceramic or film capacitors. This type of capacitor can also handle high temperatures and, depending on the type, can withstand up to +105°C.

When these capacitors are expected to handle high-voltage applications, the components must be able to withstand higher temperatures and longer exposure times. For example, some capacitors are designed for long-term operations at temperatures of up to +125°C and are commonly used in automotive applications.

In order to keep the capacitance, the EEU-FC1H4R7B must be polarized. It utilizes an anode and a cathode that forms the charge carriers. The polarized device is able to store energy by charging the anode with electrons and creating a negative voltage on the cathode. The charge stored in the aluminum electrolytic capacitor is then discharged when the voltage on the anode exceeds the voltage applied on the cathode.

An internal resistance, known as the ESR (Equivalent Series Resistance), needs to be considered when working with aluminum electrolytic capacitors. The ESR affects the performance of the capacitor and determines its ability to supply high-frequency current demands. Depending on the application requirements, capacitors with low ESR can be employed for stability at high frequency and temperature.

The EEU-FC1H4R7B aluminum electrolytic capacitor is a highly efficient and reliable device that has a wide range of applications in the automotive and telecommunications industry. With its high capacitance, long life, and excellent heat and vibration resistance, it is an invaluable component that increases the performance of many electrical and electronic systems.

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