199D475X9016BXB1

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Tantalum capacitors are one of the most popular capacitor types for use for a variety of electronic applications. Tantalum capacitors consist of two electrodes, one made from tantalum and the second from a dielectric material such as manganese dioxide. A key feature of tantalum capacitors is the capacity of their anode, which allows them to store electrical charge even when power is switched off. This makes them particularly useful for applications where the load must retain a charge for the next power on cycle.

The specific designation 199D475X9016BXB1 identifies a specific type of tantalum capacitor. With a case size of 9mmx16mm, it is a high-voltage capacitor designed to operate up to 50 volts DC. This particular capacitor is a low-ESR type, where ESR stands for equivalent series resistance and measures the dissipation factor of the capacitor. Low-ESR types are best used as output filters and in high-frequency applications due to their high capacitance and low losses.

199D475X9016BXB1 tantalum capacitors are generally used in high-frequency switching power supplies, where their low dissipation factor reduces line noise, prevents ringing and improves the system’s efficiency and power density. They are also a popular choice for use in applications such as audio speakers, high-end amplifiers and guitar pedals, where their low-ESR and good temperature stability provide increased performance.

The typical working principle of a tantalum capacitor involves the electric field set up between the plate or anode and the dielectric material which separates them (the cathode). When a fixed voltage is applied between these two electrodes, electrons migrate from the anode towards the cathode and are stored in the dielectric material, creating a deposit of opposite electric charges between the two electrodes. This electric field creates a capacitance between the two electrodes, which is what allows the capacitor to store charge even when power is switched off. As the voltage is increased, electrons migrate more quickly from the anode towards the cathode and the capacitance of the device increases.

In conclusion, the 199D475X9016BXB1 type of tantalum capacitor is suitable for use in a variety of high-frequency applications and provides superior temperature stability, low equivalent series resistance and increased power density. This makes it an ideal choice for a range of applications, particularly switching power supplies and audio amplification.

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