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Tantalum - Polymer Capacitors

Tantalum - Polymer Capacitors are a popular choice for a range of high-frequency, low-voltage applications. They offer a very high conductance and stability. They are also characterized by a low ESR (Equivalent Series resistance) and are typically rated for temperature ranges of -55 to +125C.

The term "T550B127K050AH4251" is used to describe a specific type of Tantalum - Polymer Capacitor. The "T" part of the code stands for "Tantalum Capacitor", and the "B" indicates that the capacitor has a bipolar construction. The "127" indicates the capacitance, in this case 127 µF (microfarads). The "K" indicates that the capacitor has a capacitance of 0.1 µF and a rated temperature range of -55C to +125C. The "050" indicates the rated working voltage, in this case 50 volts. The "AH4251" indicates the specific housing type and series.

Application Field

T550B127K050AH4251 is used in a wide range of applications, such as in dc-DC converters, switching power supplies, medical and consumer electronics. As this type of capacitor has a low ESR (Equivalent Series Resistance), they are suitable for use in high-frequency switching applications, where they offer excellent stability and high conductance.

This type of capacitor is also very well suited for use in high-voltage applications, such as in motor control circuits and power supplies. The low ESR allows these capacitors to remain stable even at high-voltage levels, making them a reliable choice for these types of applications.

Working Principle

The working principle of a Tantalum - Polymer Capacitor is based on the concept of storing electrical energy in a dielectric material. A dielectric material is one which has a low dielectric constant, and is able to store electrical energy in its electric field.

When a voltage is applied to a capacitor, it stores the energy in its electric field. The amount of energy stored is proportional to the capacitance, which is determined by the dielectric material and the physical size of the capacitor. The capacitance of a capacitor is also affected by its temperature, which is why a capacitor with a rating of -55C to +125C offers very good stability under a wide range of temperature conditions.

Tantalum-polymer capacitors offer excellent reliability, stability, and efficiency in high-frequency, low-voltage applications. They are well-suited for use in switching power supplies, dc-DC converters, motor control circuits, and many other applications.

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