M551B108K040AA

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Tantalum - Polymer Capacitors have been employed in a wide variety of applications since being discovered in the 1940s. The M551B108K040AA is an example of this type of capacitor, designed for use in high-frequency and RF applications. Its construction and features make it ideal for space-constrained, high-temperature, and high-power circuits.

The M551B108K040AA is a solid tantalum-polymer capacitor. It is a chip-type capacitor, meaning it has a compact, surface-mount package that takes up a small footprint on a printed circuit board. The capacitor is built with a tantalum anode and a polymer cathode that offers superior current density and greater usable capacity. The M551B108K040AA has a capacitance of 8µF ±20%, an operating temperature of −55 to +125 °C, and a maximum working voltage of 4V. It also has an ESR of 30mΩ maximum and a lifetime of 2000 hours max.

The M551B108K040AA supports very high reactive currents and is optimized for high-frequency and RF applications, such as in Wi-Fi, LTE, and satellite signal frequency ranges. Its superior current density and higher usable capacity make it ideal for space-constrained circuits, such as in smartphone and tablet designs. The operating temperature range makes it suitable for use in high-temperature automotive and industrial applications. It is also a suitable choice for low-power switching and energy-saving circuits, such as in the power supply of toys and home appliances.

The M551B108K040AA works according to the principles of capacitance. Its capacitance is determined by the quality of the dielectric material between the anode and cathode, which is the polymer in this case. When a voltage is applied between the anode and cathode, due to the polymer\'s permittivity, charge will accumulate and create a capacitor. The tantalum anode and polymer cathode of the M551B108K040AA allow it to handle higher current densities than other capacitors.

The M551B108K040AA is a solid tantalum-polymer capacitor optimized for space-constrained and high-temperature applications in HF and RF circuits. It has a compact surface-mount package and higher current densities than other capacitors. Its features include a capacitance of 8µF +20%, an operating temperature of −55 to +125 °C, a maximum working voltage of 4V, an ESR of 30mΩ max and a lifetime of 2000 hours max. This capacitor is suitable for use in cellphone, tablet and automotive designs, as well as in low-power switching and energy-saving circuits. It works by storing electrical energy, according to the principles of capacitance.

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