UTT1E221MPD1TA

Series:	UTT
Packaging:	Tape & Box (TB)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	220µF
Tolerance:	±20%
Voltage - Rated:	25V
ESR (Equivalent Series Resistance):	--
Lifetime @ Temp.:	5000 Hrs @ 105°C
Operating Temperature:	-40°C ~ 105°C
Polarization:	Polar
Ratings:	--
Applications:	General Purpose
Ripple Current @ Low Frequency:	178.8mA @ 120Hz
Ripple Current @ High Frequency:	298mA @ 100kHz
Lead Spacing:	0.138" (3.50mm)
Size / Dimension:	0.315" Dia (8.00mm)
Height - Seated (Max):	0.512" (13.00mm)
Surface Mount Land Size:	--
Mounting Type:	Through Hole
Package / Case:	Radial, Can

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Aluminum Electrolytic Capacitors Application Field and Working PrincipleAluminum electrolytic capacitors (AECs) are extremely important components in large varieties of electronic devices, due to their ability to store charge and utilize the stored energy to carry out specific functions. They are found everywhere – from consumer electronics to industrial machinery, from breakthrough medical devices to high-tech systems, from automobiles to defense technologies. In this article, we will explore the various application fields of aluminum electrolytic capacitors and explain their working principle.AECs are dielectric capacitors, meaning they store electrical energy by building up a static charge when current passes through them. This stored electric energy can be used to perform different tasks. Depending on their design, construction, and purpose, aluminum electrolytic capacitors are used in countless applications, including power supplies, digital signal processing, power factor correction, transient suppression, filter applications, and frequency tuning.In power supplies, aluminum electrolytic capacitors are used to stabilize the current and eliminate power-supply noise. They are also crucial in regulating the voltage level as the capacitive load changes with electric current. By providing a relatively large capacitance, AECs help to build a smoother output voltage in applications such as audio amplifiers and power supplies.The most common applications for aluminum electrolytic capacitors are in output filters and power supplies, where they are used to improve transient response and reduce ripple by storing and releasing energy. AECs are also widely used in switching and linear regulators, as they are able to store the energy needed to produce a steady output while regulating the power supply.Aluminum electrolytic capacitors are also used in advanced signal processing applications to improve overall system performance. By storing and then releasing energy in a controlled way, AECs help reduce noise in the signal, increase the signal-to-noise ratio of the signal, and improve signal transmission rate. Additionally, they help to reduce the frequency distortion of the signal by acting as a low-pass filter.Aluminum electrolytic capacitors are also used in power factor correction applications. This is a crucial function for power supplies with large electrical loads, as it helps to maintain the voltage and current waveforms in unison, thus optimizing the system’s efficiency and reducing power losses. AECs are also used in filter circuits, where they store energy to reduce the power frequency, improve power stability, and reduce ripple.The working principle of the aluminum electrolytic capacitor is based on the Faraday effect, which states that when a voltage source is applied across two separated conducting plates, the electric field creates a separation of ionic charges on each plate. This charge separation produces an electric field within the dielectric, and when the electric field reaches a certain strength, the dielectric layer breaks down and becomes conductive. This breakdown allows current to flow between the plates and creates a capacitor that can store energy.The capacitance of an aluminum electrolytic capacitor is determined by a few key factors, such as the dielectric material, the total capacitor area, the thin insulating layer between the plates, the distance between the plates, and the applied voltage. The capacitance of an aluminum electrolytic capacitor is extremely high due to its design, which allows a large charge to be stored within the capacitor.In conclusion, aluminum electrolytic capacitors play an important role in a wide range of electronic systems. They are used in power supplies, output filters, signal processing applications, power factor correction, and filter circuits. Their working principle is based on the Faraday effect, wherein an electric field creates a separation of ionic charges on the capacitor plates. This charge separation produces an electric field within the dielectric, and when the field reaches a certain strength, the dielectric breaks down and allows current to flow between the plates, creating a capacitor that can store energy.

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