199D105X9025A6B1E3

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Tantalum capacitors are an integral part of many electronic circuits. Their small size, high capacitance, high voltage tolerance, and reliability make them popular with manufacturers and engineers who need to design electronics that must withstand harsh environments and temperature extremes. The capacitors typically consist of two electrodes connected by an electrolytic material. The electrodes are generally made of either niobium, which is a highly conductive metal, or tantalum, which is an easily oxidized element. The primary functional difference between the two is that niobium capacitors can provide better capacitance, whereas tantalum caps are better suited for high voltage applications.

The part number 199D105X9025A6B1E3 specifically identifies a tantalum capacitor. The first three characters (199D) refer to the voltage range and tolerance of the capacitor. In this particular case, the voltage range is 2.5 to 25 volts and has a tolerance of ±10%. The next three characters (105X) refer to the capacitance value, which for this part is 10,000uF or 10mF. The remaining four characters (9025A6B1E3) identify the case, lead spacing, and the type of termination. In this case, the capacitor has a 25V DC rating, 9025 case style, lead spacing of 0.1”, and a version “E” (for axial lead) with a 1mm diameter gold-plated lead wire.

Tantalum capacitors are primarily used in power supply applications, where they provide the necessary filtering and voltage regulation. Other applications that utilize tantalum capacitors include: decoupling, bypassing, and DC blocking of signals; boosting low levels of power and maintaining system power levels; providing energy storage and buffering; and reducing high-frequency ripple. Essentially, tantalum capacitors are designed to store an electrical charge, which is then used to drive operations or provide energy when the circuit needs it most.

The working principle of a tantalum capacitor is relatively simple. When current flows through the capacitor, the electrical charge is transferred from one electrode to the other. This results in an electric field forming between the two electrodes, and the strength of this field depends on the amount of charge in the capacitor. This electric field affects the capacitor’s impedance or resistance to current flow, resulting in a voltage drop between the two electrodes. The stronger the electric field, the greater the voltage drop and the larger the amount of current that can flow through the capacitor.

In conclusion, tantalum capacitors are generally used in power supplies where they are used to regulate the voltage, reduce ripple, and provide energy storage. They consist of two electrodes connected by an electrolytic material, and the primary functional difference between niobium and tantalum capacitors is that tantalum capacitors are better suited for high voltage applications. They also have a range of other applications including decoupling, bypassing, and DC blocking of signals, and boosting low levels of power. The part number 199D105X9025A6B1E3 specifically identifies a tantalum capacitor. Their working principle is essentially that charge is transferred from one electrode to the other, resulting in an electric field forming between the two electrodes, which affects the capacitor’s impedance and causes a voltage drop between the two electrodes.

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