UKW1H221MPD1TD Capacitors

Operating Temperature:	-40°C ~ 85°C
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	0.551" (14.00mm)
Size / Dimension:	0.394" Dia (10.00mm)
Lead Spacing:	0.197" (5.00mm)
Ripple Current @ Low Frequency:	410mA @ 120Hz
Applications:	Audio
Ratings:	--
Polarization:	Polar
Series:	UKW
Lifetime @ Temp.:	2000 Hrs @ 85°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	50V
Tolerance:	±20%
Capacitance:	220µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Box (TB)

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Aluminum Electrolytic Capacitors

UKW1H221MPD1TD Application Field and Working Principle

Aluminum electrolytic capacitors, also known as aluminum electrolytic capacitors, are widely used in various electronic devices due to their large capacitance and small size. The UKW1H221MPD1TD is a type of aluminum electrolytic capacitor with a rated terminal voltage of 12.5V and a capacitance of 220uF. It has excellent electrical performance, high temperature resistance, and long life expectancy.The application fields of the UKW1H221MPD1TD aluminum electrolytic capacitors mainly include radio receivers, electronic clocks, power supply regulation, and electric motors. These capacitors can be used for frequency tuning, over-voltage protection, and noise suppression in electronics. They can also be used in electromagnetic motors for electrical energy storage and smooth drive, and in electric vehicles for charge and discharge energy storage.The working principle of the UKW1H221MPD1TD aluminum electrolytic capacitor is based on the Faraday law of electrochemistry. When a direct current is applied, a thin layer of oxide forms between the aluminum foil and the electrolyte. This helps to increase the effective capacitance of the device, which in turn increases the capacitance of the capacitors.The structure of the capacitor consists of a cylinder of two aluminum foil electrodes that sandwich a layer of paper with electrodes etched into it. The electrolyte is then added to the center layer of paper to complete the assembly. The layer of paper acts as the dielectric between the two aluminum foils, while the electrolyte helps to improve conductivity between the two layers of paper. During operation, the capacitor is charged with a direct current. This causes an electrochemical reaction between the aluminum and the electrolyte, which forms a thin layer of oxide.The UKW1H221MPD1TD aluminum electrolytic capacitor also has a high temperature rating and long life expectancy due to its solid construction. The positive and negative terminals are constructed with a tight fitting aluminum shell and are sealed by a polyester film to prevent moisture and dust from entering the device. This significantly increases its durability and ensures that the electrolyte is free of contaminants.In conclusion, the UKW1H221MPD1TD aluminum electrolytic capacitor has a wide range of applications in radio receivers, electronic clocks, power supply regulation, and electric motor. Its working principle is based on Faraday law of electrochemistry and it has a high temperature rating as well as long life expectancy. With its excellent electrical performance and reliability, the UKW1H221MPD1TD aluminum electrolytic capacitor is a popular choice for various applications.

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