M39003/09-2082B

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Tantalum capacitors are the most common type of electrolytic capacitor and can be found in almost any kind of electronic device. They offer excellent electrical characteristics and reliable performance in a wide range of applications, making them an excellent choice for power supply decoupling, filtering, and other types of signal conditioning in a variety of electronics. The M39003/09-2082B is a series of tantalum capacitors that offer a wide range of features, including high capacitance, high reliability, low ESR, very low profile, low parasitics, and excellent temperature and voltage characteristics.

Application Field

Tantalum capacitors, including the M39003/09-2082B, have a number of applications. They can be found in everything from digital and analog circuits in audio/video equipment to computers and medical instruments, as well as a variety of other electronics. Because of their high capacitance, they are often used in power supply decoupling applications in order to smooth out power supply ripples. This helps to reduce audio and video noise, improving the overall audio/video performance of the device. They are also used in signal conditioning applications such as filters and time constant circuits. Lastly, they are perfect for use in high-frequency applications such as switched-mode power supplies.

Working Principle

The M39003/09-2082B tantalum capacitors are polarized electrolytic capacitors. They are constructed of two metal surfaces, one of which is covered in a tantalum oxide layer. In this case, the top metal surface is the anode and the tantalum oxide layer is the cathode. When a voltage is applied to the capacitor, it creates an electrostatic field across the dielectric, which causes a separation of charges that creates the capacitor\'s capacitance. The electrical properties of tantalum capacitors are determined by the size and shape of the capacitor, as well as the type of material used as the dielectric.

When voltage is applied to a tantalum capacitor, a current flows from the anode into the electrolyte, which passes through the oxide layer and into the cathode. The electric field created by the current increases the capacitance of the capacitor. This increase is known as DC bias. As the current within the capacitor increases, the capacitance will continue to increase until it reaches its maximum value. At this point, the capacitance is termed "saturation capacitance" and any additional charges will result in a decrease in capacitance until it eventually reaches zero.

The capacitance and performance of the M39003/09-2082B tantalum capacitors are very stable over a wide range of temperatures and voltage levels. This makes them an ideal choice for an array of electronic applications where consistent performance and reliability are essential. Due to their low-profile design, they are also suitable for use in confined spaces and for many high-frequency applications.

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