TPSD477M006R0100

Tantalum Capacitors

Tantalum capacitors, also known as tantalum electrolytic capacitors, are capacitors that use a tantalum oxide oxide film as its dielectric material and a solid tungsten oxide electrode as the two terminals. This type of capacitor has a high permittivity compared to other traditional capacitor types and is available in a range of sizes and styles, making it a highly versatile component for designers and engineers.

TPSD477M006R0100 Application Field and Working Principle

The TPSD477M006R0100 is a surface mount Type O tantalum capacitor from AVX Corporation. It features a capacitance range of 4.7μF, a voltage rating of 6.3 V, and a maximum operating temperature of 125 °C. It’s typically used for the decoupling, filtering, and smoothing of signals in application fields such as medical, industrial, military, aerospace, and consumer electronics.

The capacitance of tantalum capacitors is determined by the dielectric material between the two electrodes. The layer of tantalum oxide on the tantalum metal base acts as an insulator, while the tungsten oxide layer provides an electrostatic storage effect. During operation a potential difference between the two terminals produces an electric field which polarizes the dielectric material. This electric field increases the dielectric constant of the dielectric material, resulting in an increase in capacitance.

In the case of the TPSD477M006R0100, avalanche and pulse derating are used as derating techniques to extend the life and improve the reliability of the capacitor. Pulse derating works by limiting the amount of current that can flow through the capacitor, while avalanche derating prevents excessive current levels from damaging the dielectric.

The TPSD477M006R0100 is designed to be used in high-temperature applications and is constructed with a low equivalent series resistance (ESR). This reduces the impedance of the capacitor and allows it to respond quickly to fast-changing signals. It also has a very stable and low impedance characteristic over a wide temperature range.

Overall, the TPSD477M006R0100 is an excellent choice for designers and engineers looking for a reliable, high-performance tantalum capacitor. Its excellent temperature and current ratings, low ESR, and versatile size and style options make it an ideal solution for a range of applications.