M551B108M025AH

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Tantalum-Polymer Capacitors are a type of electrolytic capacitor that combines the superior features of both tantalum and polymer technologies. The combination offers a high capacitance density in a compact package. Among the many popular tantalum-polymer capacitors, the M551B108M025AH is a commonly used type, widely used in a variety of applications. In this article, the application fields and working principle of the M551B108M025AH and similar capacitors will be discussed.

The M551B108M025AH is a 10V, 100microfarads, 8mm dia tantalum-polymer chip capacitor from the AVX Corporation. It is an ESR-optimized capacitor that is designed for high temperature operation up to 125°C and high ripple current up to 1.5A. It is also RoHS compliant and provides a total capacitance tolerance of ±10% over that range at 10kHz. The M551B108M025AH is mainly used in automotive and industrial applications, such as motor drives, battery chargers, DC/DC converters and portable electronics.

The working principle of the M551B108M025AH or any other tantalum-polymer capacitor is the same. It is based on the principle of electrolytic capacitors, wherein metal plates act as the two electrodes separated by an electrolyte solution. However, in the case of tantalum-polymer capacitors, a polymer electrolyte solution is used instead of a liquid electrolyte. This increases the capacitance density and has the added benefit of offering low equivalent series resistance (ESR).

The M551B108M025AH or any other tantalum-polymer capacitor has a number of advantages over other types of capacitors, such as high capacitance density, wide operating temperature range (up to 125°C), low ESR, excellent electrical stability and long life. In addition, this capacitor also has good electrical reliability, high frequency performance and high surge current capability. It is also relatively inexpensive and easy to use.

Tantalum-Polymer capacitors are now widely used in various applications including power supplies, instruments, telecommunication equipment, medical devices, and automotive electronics. They are often found in SMPS and DC/DC converter circuits where its high capacitance, ESR and voltage ratings are most advantageous. It is also used in low-voltage applications such as microprocessors and graphic cards, where its low ESR and excellent frequency response make it an ideal choice.

In conclusion, the M551B108M025AH tantalum-polymer capacitor is a very popular device used in a wide range of applications. It has gained widespread acceptance due to its high-temperature operation and robust design, allowing for high reliability and efficiency with low power consumption. The combination of these features make it an ideal choice for automotive and industrial applications as well as low-voltage applications such as microprocessors and graphics cards.

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