LAQ2P181MELA25

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Aluminum electrolytic capacitors are an electrochemical type of capacitor that utilizes an aluminum oxide layer as insulation between an alloy foil anode and a cathode. While the oxide layer and aluminum allows for a high capacitance density, it also has a narrow operating temperature range and lifetime limited by leakage current, with higher leakage associated with higher temperature and higher ripple current. While aluminum electrolytic capacitors have been in use since around 1950, they continue to evolve, with new materials, designs and technologies recently being developed.

The LAQ2P181MELA25 is an aluminum electrolytic capacitor unique in its construction and design. Consisting of a metal alloy foil anode, an electrolytic paper impregnated with an aluminum oxide, a metal cup-shaped cathode, and an insulating sealer, the LAQ2P181MELA25 is designed for both general and industrial purposes and is suitable for applications in a wide range of harsh and demanding environments. Its metal alloy structure ensures excellent non-polarized, alternating current performance and temperature stability, while its paper separator makes for great overall reliability and performance under high vibration and ripple current.

The working principle of the LAQ2P181MELA25 starts with the creation of the metal alloy anode, which has a series of small pores. These pores are then filled with electrolytic solution and a separation material like paper is placed between them. As electricity is applied to the capacitor, an electric current begins to flow, causing the metal alloy to form a thin insulating layer of aluminum oxide on the anode electrode. The layer acts as an insulator and has capacitance, which is the measure of the capacitor’s ability to store energy. As electricity continues to flow through the device, a voltage is created between the anode and the cathode, and an electric field is produced. This electric field “pumps” ions from the electrolyte solution through the oxide layer, resulting in a voltage across the capacitor.

The LAQ2P181MELA25 also features a metal cup-shaped cathode, which ensures high internal heat dissipation for exceptional long-term performance. This capacitor is designed to operate in temperatures ranging from -40 to +105°C, and is suitable for applications such as power supplies, automotive circuits, board-level applications, communication equipment, home electronics and more. The LAQ2P181MELA25 also offers an exceptional endurance of 2000 hours at 105°C and 2000 hours at +85°C and offers a long lifespan of up to 10,000 hours at +85°C.

In summary, the LAQ2P181MELA25 is an aluminum electrolytic capacitor that utilizes a metal alloy anode, an electrolytic paper separator, and a metal cup-shaped cathode to provide excellent non-polarized, alternating current performance and temperature stability. With a wide operating temperature range, high capacitance density, and low ESR and ESL ratings, the LAQ2P181MELA25 is a reliable, cost-effective capacitor solution for a variety of applications.

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