ALF40C122DF200

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Aluminum electrolytic capacitors, or AL-E caps, are non-polarized capacitor components. These components are made of two aluminum foils that are rolled into a cylindrical shape and alternating layers of electronically conductive paper, or dielectric. The internal aluminum foils are etched out with electrodes, while the external layer acts as an electrolyte for the device. The capacitance of AL-E capacitors is determined by the distance of the two foils from each other and/or the external capacitance of the dielectric layer.

The ALF40C122DF200 is a device positioned in the aluminum electrolytic capacitors family. This device is a surface mount technology (SMT) type aluminum electrolytic capacitor with a radial lead, encapsulated in an epoxy case. This device is developed to meet the needs of board-level designers who require high-density, high-speed, low ESR, and low-power solutions. It has a rectangular profile with two straight leads, and is terminated with two flat external metal strips. The ALF40C122DF200 has a rated capacitance of 2.2uF, rated voltage of 10V DC voltage, and an operating temperature of -25°C to 85°C.

The ALF40C122DF200 are widely used in multi-channel microcontrollers, audio amplifiers, and digital video recorders. This device is ideal for high-frequency circuits, such as switching mode power supplies, resonant circuits, and increasingly popular digital-based electronic equipment. In switching mode power supplies, these devices are used as part of a switching circuit, integrated within a single IC, to control the magnitude, speed, and duration of the output. In audio amplifiers, they provide very high stability against variations in capacitance over frequency. Furthermore, in digital video recorders, they provide reliable high-speed data transmission.

The working principle of the ALF40C122DF200 is based on the principle of electrolytic capacitors, which allow the accumulation of electric charge on the dielectric layers, forming an electric field. The electrolyte is a conducting liquid that serves as a medium between the two metallic foils. The electrolyte dissolves the ions of some metal, and allows them to react with the aluminum foils at each of its surfaces. This reaction changes the structure of the foils, creating aluminum oxide which is insulating, but allows for the dielectric layers to be made up of electrically conducting materials. This causes the charge to accumulate on these layers. In this way, the ALF40C122DF200 acts as a storage for electric charge.

In summary, the ALF40C122DF200 is a type of aluminum electrolytic capacitor component that is used in high-frequency circuits, audio amplifiers, and digital video recorders. It is a surface mount technology device with a rated capacitance of 2.2uF, rated voltage of 10V DC voltage, and an operating temperature of -25°C to 85°C. Its working principle is based on the principle of electrolytic capacitors, which allow for the accumulation of electric charge on the dielectric layers, forming an electric field. This device provides reliable high-speed data transmission, and can provide very high stability against variations in capacitance over frequency.

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