LPX271M450E4P3

Aluminum Electrolytic Capacitors

An aluminum electrolytic capacitor (Al-Ele Cap) is an electrical component consisting of an anode layer of pure aluminum foil, an electrolyte of distilled water, and a distinct and thicker cathode foil of highly porous aluminum oxide film. This type of capacitor is increasingly becoming popular due to its low cost and high reliability even in extreme environments.

LPX271M450E4P3 is an aluminum electrolytic capacitor model used in various electronic applications. It is a miniaturized, low-profile, surface-mount component consisting of a silver-colored aluminum anode layer, an electrolyte layer, and a tan-colored cathode layer, all under an epoxy-impregnated construction.

Application Field for LPX271M450E4P3

LPX271M450E4P3 is a wide-range, surface-mount aluminum electrolytic capacitor that is used in low-power and general-purpose applications. It is rated with temperature ranges of -40°C to +85°C and is suitable for use in automotive, consumer, and industrial instrumentation. This capacitor can be used to reduce noise, suppress transient interference, and provide a stable DC voltage to the circuit.

Working Principle of LPX271M450E4P3

The working of LPX271M450E4P3 is based on Faraday’s law of electrolysis. As per this law, when a direct current is passed through a solution containing dissolved ions, the ions migrate from the anode to the cathode and form a protective layer on the surface of the cathode. The passive layer thus formed acts like a shield and suppresses any further current flow. In an aluminum electrolytic capacitor, this layer is formed by the electrolyte layer.

In a single-layer aluminum electrolytic capacitor, such as the LPX271M450E4P3, the passive layer is formed and recharged by an internal DC current flowing through the aluminum anode. This current helps to maintain a 3-V potential difference between the anode and the cathode. The capacitance value of the capacitor is determined by the total amount of charge stored in the capacitor.

Since aluminum electrolytic capacitors have large capacitance values, they are often used in low-voltage applications such as power supplies. The passive layer created by the electrolyte also helps to suppress electro-magnetic interference (EMI) and radio frequency interference (RFI) in the circuit.

LPX271M450E4P3 is a very reliable and cost-effective aluminum electrolytic capacitor that can be used in a variety of applications. It is best suited for applications that need to be used in extreme temperature ranges, where its high reliability and robustness make it an ideal choice.