550991T250AJ2B

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Aluminum Electrolytic Capacitors

550991T250AJ2B application field and working principle

Aluminum Electrolytic Capacitors (AECs) are versatile components used extensively in many different circuit designs, where they serve as energy storage devices for the controlled release of energy over a short period of time. This article will discuss the application field and working principle of the 550991T250AJ2B AEC.

Application Field

The 550991T250AJ2B AEC is a small-sized, leaded-type capacitor with an operating temperature range of -55°C to +125°C. It is primarily used as a signal filter capacitor for applications where it is necessary to store and release energy in short bursts. It is a popular choice for DC-DC power converters, AC-DC motor controllers, DC motor controllers, computer power supplies, and voltage regulators.

Working Principle

The core of an AEC consists of an electrolytic paper insulation sandwiched between two aluminum foil layers. An electrolyte liquid solution is impregnated into the paper insulation, which serves as a route for ionic conduction between the two aluminum layers. When a voltage is applied across the capacitor\'s terminals, the electrical charges accumulate on the two metal plates, resulting in an electric-field driven accumulation of positive electric charges on one plate and negative charges on the other. This forms an electric capacitance between the two plates.

The capacitance of an AEC is determined by the surface area of the plates, the distance between them, and the type of insulation material used. An AEC with a relatively high capacitance is ideal for applications that require the movement of large amounts of charge over a short period of time. An AEC with a smaller capacitance is better suited for applications that require a slower rate of charge movement.

Conclusion

The 550991T250AJ2B AEC is a small-sized, leaded-type capacitor with an operating temperature range of -55°C to +125°C. It is primarily used as a signal filter capacitor for applications where it is necessary to store and release energy in short bursts. Its capacitance is determined by the surface area of the plates, the distance between them, and the type of insulation material used, with larger capacitance ideal for applications that require the movement of large amounts of charge over a short period of time.

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