UKT1E221MPD1TA

Series:	UKT
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.:	1000 Hrs @ 105°C
Operating Temperature:	-55°C ~ 105°C
Polarization:	Polar
Ratings:	--
Applications:	Audio
Ripple Current @ Low Frequency:	240mA @ 120Hz
Ripple Current @ High Frequency:	360mA @ 10kHz
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

Aluminum electrolytic capacitors are widely used in electronics. These passive components are designed to store charge and are available in a variety of form factors. Commonly used in power supply, motor control, and signal processing circuits, they are also the preferred solution in applications where small size and high capacitance are required.The UKT1E221MPD1TA is an aluminum electrolytic capacitor that is ideally suited for applications requiring high capacitance in a small form factor. Measuring just 10.5mm by 18.5mm, the UKT1E221MPD1TA is a low profile radial chip capacitor with a rated capacitance of 220µF and a rated voltage of 25 volts.

Application Field

The UKT1E221MPD1TA is well-suited for a variety of applications such as in switching power supplies or motor drives, as well as for audio frequency (AF) or pulse circuits. Due to its small size, the capacitor can also be used in applications where board space is limited or where the component needs to be packaged in tight quarters. As an aluminum electrolytic capacitor, it provides excellent performance and stability in decoupling, smoothing, and filtering applications.

Working Principle

The working principle of an aluminum electrolytic capacitor is based on the principles of electrochemistry. It consists of two aluminum foil electrodes that are treated with a special electrolyte. An electrical potential difference is applied between the two foil electrodes, creating an electric field that causes the molecules of the electrolyte to break down and form a thin electrically conductive layer of ions between the two electrodes. This thin layer of ions, or “electrolyte layer”, creates an effective barrier between the two electrodes that holds a charge.The aluminum foil electrodes of the UKT1E221MPD1TA are separated by an aluminum oxide layer, and the entire package is immersed in a solution of propylene glycol to provide the electrolyte. This aluminum oxide layer gives the capacitor higher breakdown voltage than capacitors with other electrolyte solutions.The rated capacitance of the UKT1E221MPD1TA is determined by the amount of space between the two aluminum foil electrodes, which dictates the amount of charge that can be stored. The longer the electrode lines, the higher the capacitance. The rated voltage of 25 volts, on the other hand, is determined by the amount of charge that can be stored without causing the capacitor to breakdown. Once the potential difference between the two electrodes exceeds this rated voltage, the aluminum oxide layer within the capacitor can break down and cause the capacitor to fail.

Conclusion

The UKT1E221MPD1TA is an aluminum electrolytic capacitor that provides excellent performance and stability for a wide variety of applications. It can be used in applications needing high capacitance but where physical size is limited. By employing the principles of electrochemistry and utilizing a special electrolyte, it is capable of storing charge between two electrical conductive layers. The rated capacitance and rated voltage of this capacitor determine the amount of charge that is stored and the limit at which the capacitor can be used without failure, respectively.

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