F951A685MPAAQ2 Capacitors

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Tantalum capacitors, also called electrolytic capacitors, represent a common type of capacitor used in electronics, with applications in fields ranging from portable consumer electronics to medical and military equipment. The F951A685MPAAQ2 is a specialized tantalum capacitor designed for low-profile and extremely compact applications such as power management in highly space-constrained electronics, such as mobile phones and wearable devices.

The F951A685MPAAQ2 is a 5.5V tantalum capacitor with a high temperature rating of up to 155°C, making it ideal for high-temperature environments such as automotive and industrial applications. It offers a low equivalent series resistance (ESR) of 0.21 Ohms, allowing for higher current levels and power dissipation and improved performance in pulsed or switching circuits.

TheF951A685MPAAQ2 is a two-terminal capacitor with a flat molded exterior, allowing a high packing density. Its cylindrical housing measures 3.2mm in diameter and 1.7mm in height, making it extremely small and suitable for cramped printing circuit boards. In addition, its slim form factor allows the capacitor to be easily integrated into slim, low-profile components without reducing the capacitor’s performance.

At its core, the F951A685MPAAQ2 is a solid-tantalum capacitor with a manganese dioxide (MnO2) tantalum anode and an embedded tantalum pentoxide (Ta2O5) dielectric layer. This type of capacitor offers a high capacitance relative to its physical size, along with an extremely low ESR and high reliability. Additionally, the capacitor features a robust external structure with a bottom-to-top anode-cathode voltage differential and an anode-cathode seal designed to resist soldering heat and other environmental factors.

To operate, the F951A685MPAAQ2 applies a voltage between the anode and the standard negative voltage to the outside rim of the housing. This causes a current to flow through the MnO2 and Ta2O5 layers, forming an electric field across the capacitor’s surface. This electric field stores energy by raising the frequency and preventing any current from passing through, thus acting as a capacitor. In an application such as power management, the capacitor can be used to store energy for a short period of time, allowing it to supply a regulated voltage even during a temporary power outage or fluctuation.

In summary, the F951A685MPAAQ2 is a solid-tantalum capacitor designed for highly space-constrained applications such as power management in mobile phones and wearable devices. Its extremely small size and high temperature rating make it suitable for a variety of applications, along with its low ESR and robust external structure. Its two-terminal flat molded design also allows for a high packing density, while its embedded MnO2 and Ta2O5 layers allow it to serve as an efficient energy storage capacitor, providing a regulated voltage in the event of a power outage or fluctuation.

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