T551B827M006AH4251

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Tantalum – Polymer Capacitors are widely used in various fields mainly due to their unique properties and characteristics. The T551B827M006AH4251 is one such component which, due to its large capacitance, low Equivalent Series Resistance (ESR) and low profile, is highly suitable for a number of applications. Furthermore, its solid construction with a conformal coating also make this capacitor highly reliable. In this article, its application field as well as working principle will be discussed in detail.

Application Field

The T551B827M006AH4251 is mainly used in a variety of electronic applications, from consumer products to specialized applications. Its large capacitance and low ESR make it ideal for use in power supplies and DC-DC converters, especially where high voltage and high ripple current are required. The component can also be used in miniaturized designs, due to its low profile, which allows for higher component densities in limited space. Furthermore, as the capacitance is non-volatile, it also offers excellent protection for digital circuits, ensuring proper functioning of the system. Additionally, the component is also widely used in consumer products such as mobile phones, tablets, and wearable devices.

Working Principle

Tantalum – Polymer Capacitors, such as the T551B827M006AH4251, use layers of semiconductive materials sandwiched between alternating layers of tantalum and polymer film. The tantalum layer provides excellent conductivity and low equivalent series resistance (ESR), while the polymer film provides dielectric insulation and positive temperature coefficient. The dielectric provides a consistent capacitance over temperature and voltage variations, while the tantalum ensures perfect electrical conductivity. The construction is further protected by a conformal coating, which helps to protect the component from physical and environmental factors.

To improve the capacitance, the polymer film is doped with highly charged ions, which increases the total capacitive value of the component. The doping also has the effect of increasing the breakdown voltage of the component, making it suitable for various high voltage applications. The capacitance of the component is also directly proportional to its area and inversely proportional to its thickness, which means that larger capacitance capacitors can be built in a very compact size.

The T551B827M006AH4251 is also highly reliable due to its construction, which uses solid layers between the tantalum and the polymer. This adds strength to the construction, as well as helps to prevent shorting, resistance degradation and other common failure modes. The conformal coating, which covers the whole component, further adds to its reliability and helps to protect against environmental degradation from dust, moisture and corrosive gases.

In summary, the T551B827M006AH4251 is a highly reliable and robust component, which is suitable for use in many applications. Its large capacitance and low ESR make it suitable for use in various power supplies and DC-DC converters, while its low profile makes it ideal for miniaturized designs. It is also highly reliable due to its solid construction and conformal coating, making it suitable for use in a range of applications.

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