UVR1E471MPA

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Aluminum electrolytic capacitors are widely used in electronic circuits and are one of the most common types of capacitors in use today with applications ranging from consumer electronics to industrial electronic devices. One of the most commonly used aluminum electrolytic capacitors is the UVR1E471MPA.

The UVR1E471MPA is a through-hole capacitor with a capacitance value of 470 μF and a rated voltage of 15 V. It has an operating temperature range of -40 to +105 °C and is rated for +105 °C. The UVR1E471MPA is constructed using a solid aluminum can and epoxy coating which protects the inner electrolyte and components from the environment. The UVR1E471MPA also features an adhesive sealant which provides additional protection.

The UVR1E471MPA is typically used in DC power supply filters, charge and discharge circuits, timers circuits, and other capacitor filtering applications. In addition, it is also used in high frequency filtering applications, such as EMI/RFI filters, due to its low ESR (equivalent series resistance).

The working principle of an aluminum electrolytic capacitor is based on Faraday\'s law. The law states that the amount of charge (Q) on a capacitor is equal to the product of the capacitance (C) and the voltage (V). Faraday\'s law allows for the capacitance of the aluminum electrolytic capacitor to be changed by changing the voltage of the capacitor. In the UVR1E471MPA, when the voltage increases, the capacitance increases. This is due to the fact that the electrons on the metal plate are attracted to the positive terminal, creating an electrostatic field between the two terminals. This electrostatic field stores the charge on the capacitor which is equal to the capacitance.

The UVR1E471MPA is a polarised capacitor due to the doping of the aluminium foil. This is done to ensure that it only conducts electricity in one direction. When the negative pole of the voltage is applied, the electrolyte solution breaks down and the anode is isolated. This prevents the capacitor from conducting electricity in the reverse direction. For this reason, it is important to connect the UVR1E471MPA in the correct orientation.

In summary, the UVR1E471MPA is a type of aluminum electrolytic capacitor with a capacitance of 470 μF and a rated voltage of 15 V. It is commonly used in DC power supply filters, charge and discharge circuits, and high frequency filtering applications. Its working principle is based on Faraday\'s law, and it is a polarised capacitor due to the doping of the aluminium foil.

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