Polarization:	Polar
Package / Case:	Radial, Can - Snap-In
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	1.457" (37.00mm)
Size / Dimension:	0.984" Dia (25.00mm)
Lead Spacing:	0.394" (10.00mm)
Ripple Current @ High Frequency:	2.212A @ 10kHz
Ripple Current @ Low Frequency:	1.58A @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	USC
Operating Temperature:	-25°C ~ 85°C
Lifetime @ Temp.:	3000 Hrs @ 85°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	420V
Tolerance:	±20%
Capacitance:	220µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are widely used in electrical and electronics applications. These capacitors are well-designed for efficient storage of electrical energy for a given period of time. This article will discuss the application field and working principles of a 420USC220MEFC25X35 aluminum electrolytic capacitor.

Basic Construction

An aluminum electrolytic capacitor consists of two aluminum foils. One foil is formed into a series of cylinders, which are connected to the opposing foil and insulated with a cellulose paper. This is separated by the core material, an electrolyte. The aluminum foils form the electrodes, while the layer of electrolyte provides a path for electro-migration of the charges, which, in turn, enables it to act as a capacitor.

Application Field

Aluminum electrolytic capacitors are used in various applications, such as power supplies, consumer electronics, and automotive electronics. The capacitors are well-suited for filter and smoothing circuits, snubber circuits, and power factor correction. These capacitors can also be used in RF applications such as base stations, radios, and cell phone systems.

Working Principle

The working principle of an aluminum electrolytic capacitor is very simple. The two aluminum foils are electronically connected and the capacitor can store energy in the form of an electrical field across the dielectric. The charges collected on the two aluminum foils create a voltage, which is stored in the capacitor. The capacitor then releases the energy in the form of an electric current when a voltage is applied to its terminals.

Important Specifications

The 420USC220MEFC25X35 aluminum electrolytic capacitor has maximum capacitance of 220µF. It also has a rated voltage of 25 VDC, temperature range of -55 to +85°C, and a maximum ripple current of 12 mA. It also has a tolerance of ±20% and a life expectancy of 2000 hours.

Conclusion

The 420USC220MEFC25X35 aluminum electrolytic capacitors are used in a wide variety of applications and are well-suited for power supplies, consumer electronics, and automotive electronics. They are also used in filter and smoothing circuits, snubber circuits, and power factor correction. The capacitors can also be used in RF applications such as base stations, radios, and cell phone systems. These capacitors have a maximum capacitance of 220µF and a rated voltage of 25 VDC. They also have a temperature range of -55 to +85°C, a maximum ripple current of 12 mA, a tolerance of ±20%, and a life expectancy of 2000 hours.

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