URU2E470MRD

Polarization:	--
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	0.571" (14.50mm)
Size / Dimension:	0.787" Dia (20.00mm)
Lead Spacing:	0.394" (10.00mm)
Ripple Current @ High Frequency:	448mA @ 10kHz
Ripple Current @ Low Frequency:	280mA @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	URU
Operating Temperature:	-40°C ~ 85°C
Lifetime @ Temp.:	2000 Hrs @ 85°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	250V
Tolerance:	±20%
Capacitance:	47µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction to Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are a type of electrical component, primarily for the purpose of storing electrical energy. They are among the most commonly used capacitor types due to their many useful characteristics. Generally, they are composed of two longitudinal aluminum foil strips with an oxide coating and etching on the surface that is 50 to 100% thicker than the other layers. The aluminum foil is separated and sealed by a paper or film, called the dielectric, and impregnated with a conductive electrolyte.

Application Field and Working Principle of URU2E470MRD

The URU2E470MRD aluminum electrolytic capacitor has a relatively large capacity, making it suitable for a wide range of applications. Some examples include power supplies, converters, circuit protection and resonance circuits. In electric circuits, it is mainly used in place of an electrolytic capacitor to store energy temporarily and transfer it to the load when there is an insufficient electrical supply. When the external power supply is connected to the two plates of the capacitor, the two plates will absorbs the electric charges on the surface by forming an electric double layer, with one plate\'s electric charges pointing towards the other (positive to negative). This process forms the electric field between two plates, and the area of overlap is where energy is stored. When the electric power is removed, the charges no longer accumulate and the energy stored is discharged back to the circuit.

Advantages and Disadvantages

Aluminum electrolytic capacitors offer some advantages over other types of capacitors, such as film capacitors and paper capacitors. They are able to hold a larger amount of electrical charge, so they are suitable for applications where high capacitance is needed. In addition, these capacitors have excellent stability over a wide range of temperatures and have a relatively long life span. However, aluminum electrolytic capacitors also have some drawbacks. One is that the life expectancy of these capacitors decreases over time and use, which can be an issue for some applications. Also, their use in high frequency applications is limited due to their low quality factor. They can also be more prone to explosive failure in comparison with other types of capacitors.

Conclusion

In conclusion, URU2E470MRD aluminum electrolytic capacitors offer numerous advantages. They are suitable for numerous applications, including those that require large capacitance values. However, they are also susceptible to reduced life expectancy and explosive failure, so it is important to consider these factors when choosing the right capacitors for a particular application.

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