ALS71H182DE250

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Aluminum Electrolytic Capacitors

Introduction

Aluminum Electrolytic Capacitors (AECs) are storage/filter capacitors used for storing electrical energy and filtering out AC power noise. They are made out of copper-clad aluminum foil and use an electrolytic fluid for an electrolyte. The electrolytic fluid is induced in between and around the non-polarized electrodes and as a result creates a third pole, or dielectric, which enables the storage of charge. When the electrolyte is placed in the capacitor, it continues to react with the electrodes over time and can cause the capacitor\'s capacitance to decrease slightly or change.

ALS71H182DE250

The ALS71H182DE250 is a type of Aluminum Electrolytic Capacitor. It has a temperature range of -40°C/+105°C and a voltage rating of 250V DC max. The ALS71H182DE250 is an axial lead capacitor and is designed for use in applications where reverse leakage and ripple current are critical.

Application Field and Working Principle

The ALS71H182DE250 is commonly used in high-end power supplies as it can handle higher voltage and temperature extremes as well as rated ripple current. Its primary applications include motor controllers, TV sets, and switching DC/DC converters.

As an Aluminum Electrolytic Capacitor, the ALS71H182DE250 functions by storing energy provided from a power source. The aluminum foil and electrolyte provides the capacitance and the electrical field between the plates allows charge to be stored for a short period of time. This stored energy is then used to filter out AC noise. During operation, a voltage is applied to the two metal plates of the capacitor. This causes a charge to build up on one of the plates that is held in place by the dielectric, or electrolyte, that is between them.

The ALS71H182DE250 has a capacity of 220μF with an impedance of 2 ohms. The capacitance provides more charge storage, while the impedance provides resistance to the flow of current, which is required in many applications. The electrolyte also has an effect on the capacitance or impedance of the capacitor by increasing the dielectric constant and decreasing the equivalent series resistance (ESR). This lowers the impedance of the capacitor, which allows for more stored energy.

Conclusion

The ALS71H182DE250 Aluminum Electrolytic Capacitor is a reliable and versatile component that can be used in high-end power supplies and in many other applications. It is designed to handle higher voltage and temperature extremes as well as rated ripple current, making it a dependable and efficient part for numerous projects. The capacitance and impedance of the capacitor as well as the electrolyte work together to allow for charge storage and filtering of AC current noise. This makes the ALS71H182DE250 an exceptional component and well-suited for various applications.

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