Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors utilize a large surface area aluminum foil anode, impregnated with an electrolyte, to achieve high capacitance values in a small can size. This construction gives the device a greater capacitance per volume of volume than other capacitor types, however, it also has a longer lead time.

The LAQ2D681MELZ50 is a widely used aluminum electrolytic capacitor. This device has a cylindrical shape with two lead terminals. The case of the capacitor is an impressive 50 millimeters in length, though the actual capacitance is relatively low. With a capacitance of 6800µF, the LAQ2D681MELZ50 has an operating voltage of 10V.

The LAQ2D681MELZ50 is well suited for use in low voltage applications as a smoothing element in switch-mode power supplies, computers, TVs, and other electronic equipment. Additionally, its low inductance makes it a good choice for high frequency applications. It can provide a steady power source for ICs, minimizing disruption and noise interference. Additionally, its low ESR provides better performance in high ripple current applications.

The LAQ2D681MELZ50 has a working principle based on electrolytic capacitors. In a general sense, an electrolytic capacitor is a device composed of two pieces of foil separated by a thin oxide film which serves as the capacitor\'s dielectric. A current creates ions which move toward the anode, forming an electric double layer. This creates a parallel plate capacitor in which the anode is the foil and the oxide film serves as dielectric. The oxide layer stores charge, and is measured by the capacitance.

The LAQ2D681MELZ50 utilizes a large surface area aluminum foil anodized with an electrolyte. This construction allows for a greater capacitance per volume than other types of capacitors, though with a longer lead time. The electrolyte creates an anion layer that is rich in electrons, providing the capacitance. The anion layer also serves to screen hysteresis and increase the thermal efficiency of the device.

The LAQ2D681MELZ50 is available in a wide range of values, from 6.8µF to 680µF, with a maximum operating voltage of 10V. The lifetime characteristics of the LAQ2D681MELZ50 are also impressive and it is rated to have a minimum life of 2000 hours at 105°C. It is also inherently RoHS and EIA compliant. Additionally, its non-polarized design makes it especially suitable for applications that involve frequent power cycling.

The LAQ2D681MELZ50 is ideal for use as a smoothing element in switch-mode power supplies and other high-frequency applications. Its long life and high capacitance per unit volume make it a great choice for providing steady power supply to sensitive ICs. It is also RoHS and EIA compliant, making it suitable for use in a variety of applications.