UFW1A471MED

Operating Temperature:	-40°C ~ 85°C
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	0.433" (11.00mm)
Size / Dimension:	0.248" Dia (6.30mm)
Lead Spacing:	0.098" (2.50mm)
Ripple Current @ Low Frequency:	330mA @ 120Hz
Applications:	Audio
Ratings:	--
Polarization:	Polar
Series:	UFW
Lifetime @ Temp.:	2000 Hrs @ 85°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	10V
Tolerance:	±20%
Capacitance:	470µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction of Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are one type of capacitors and are very important in the electrical and electronic industry. As the saying goes, the development of electronic industry is inseparable from the progress of capacitors. Aluminum electrolytic capacitors use a thin sheet of aluminum foil, which is an electronic conductor, with two layers of aluminum oxide insulator, as the capacitor electrodes. Aluminum electrolytic capacitors have higher energy density, higher capacity and higher working voltage than other capacitors, and thus they are widely used in electrical and electronic applications.

UFW1A471MED Application Field and Working Principle

UFW1A471MED is a kind of aluminum electrolytic capacitor which has the following characteristics: low loss, very low ESR, high ripple current, and high temperature operation. UFW1A471MED capacitors are widely used in a variety of applications such as pulse power supplies, DC-DC converters, AC-DC converters, AC-AC converters, power factor correction circuits, UPS systems, and noise filtering systems.The working principle of aluminum electrolytic capacitors is based on the principle of electrostatic induction. When voltage is applied, positively charged ions are drawn to the negatively charged oxide layer, creating a potential difference between the two layers. This potential difference, called capacitance, is the basic phenomenon upon which aluminum electrolytic capacitors depend to store electrical energy.The capacitor is composed of a voltage-resistant dielectric layer (or insulation layer) and an aluminum anode substrate. Between these two layers, there is an electrolyte film, which is formed when ions pass through it, and this constitutes the capacitor\'s conductive layer. The outer body of the capacitor (which has either cylindrical or rectangular shape) is the end cover for the capacitor and can act as a shield.

Advantages of Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors offer several advantages over other types of capacitors. They have a higher capacitance than other capacitors due to their ability to absorb more energy. This is because the aluminum foil in the capacitor acts as a good conductor, allowing the capacitance to increase greatly. They also have very low equivalent series resistance (ESR) when compared to other capacitors, resulting in a lower total internal resistance, which increases the efficiency of the capacitor. The high temperature capability of these capacitors makes them ideal for high-wattage applications such as SMPS and DC/DC converters.Aluminum electrolytic capacitors are also highly reliable and durable. Their aluminum anodes and dielectrics provide efficient protection against electrical overstress, and thus they offer greater quality assurance. Additionally, their relatively low manufacturing cost makes them a popular choice in the industry.

Disadvantages of Aluminum Electrolytic Capacitors

Though aluminum electrolytic capacitors offer many advantages, they also have some drawbacks. Their most notable drawback is that they have a much shorter lifetime compared to other types of capacitors. This is due to the fact that the electrolyte layer in the capacitors tends to break down over time, resulting in a leakage of current. In addition, aluminum electrolytic capacitors tend to be relatively large due to their bulky structure. This means that these capacitors take up more space on the circuit board, which makes them difficult to use in applications with limited space.Finally, aluminum electrolytic capacitors can be difficult to replace, as their end caps need to be removed in order to access the capacitors. This can make it difficult to service them and can increase maintenance costs.

Conclusion

Aluminum electrolytic capacitors, such as UFW1A471MED, offer many advantages, including a high capacitance, low ESR, and high temperature capability. However, they also have some drawbacks, such as a shorter lifetime and bulkiness. Overall, aluminum electrolytic capacitors are an important component in many electrical and electronic applications, and despite their drawbacks, they are still a popular choice in the industry.

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