UPT2E331MRD

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Aluminium electrolytic capacitors are widely used in electronics and electrical applications, mainly due to their huge capacitance in small size, low cost and low equivalent series resistance (ESR). The UPT2E331MRD belongs to this range of capacitors and has relatively low values for its ESR and therefore a high power rating. This, in turn, makes it suitable for power supply filtering and other applications where a high amount of charge and discharge cycles are needed.

The working principle of UPT2E331MRD utilises an electrolyte between two aluminium foil plates. One plate is etched with a pattern for increased surface area, and each plate is then covered with a layer of oxide. A capacitance is then formed in the capacitor due to the presence of electric field between the two plates. The anode (positive side) will be oxide-covered aluminium, while the cathode (negative side) will be pure aluminium foil.

The aluminium electrolytic capacitors are characterised by capacitance, ESR and life expectancy, which can be accurately derived using calculations and tests. The ESR of UPT2E331MRD is specifically low, making it suitable for situations where frequent charge and discharge of power are needed. For this reason, it is popularly used in power filter circuits.

The UPT2E331MRD is capable of being mounted in any of the available packages that it is available in, including radial and axial types. The radial type is commonly mounted on a PCB board, with pins extending from each end, while the axial type is mainly used where space is limited, as it is cylindrical and its length can be adjusted.

Apart from power filter circuits, the UPT2E331MRD is also used for decoupling, smoothing, and filtering in the digital circuits, motor drives and power supplies. Its good self-healing characteristics mean that it is able to absorb any voltage spike without any damage, helping to protect the device or circuit it is connected to.

To ensure proper functioning, the UPT2E331MRD should be stored and handled with care. Excessive handling should be avoided and it should be stored in controlled temperature and humidity conditions. It is important to note that UPT2E331MRD capacitors are polarized, making it necessary to connect them in the right direction.

In conclusion, UPT2E331MRD belongs to the aluminium electrolytic capacitor family. It has relatively low ESR and high power rating, making it suitable for power filter circuits, decoupling, smoothing and filtering. It also has good self-healing characteristics and can be mounted in any of the available packages.

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