T491B335K025ZT48607622

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Tantalum Capacitors

Tantalum capacitors use a tantalum metal oxide as the dielectric material, separated from two electrodes by a dielectric barrier layer. These capacitors provide a wide range of application fields and highly reliable performance, particularly in regards to their low equivalent series resistance (ESR) and long service life.

T491B335K025ZT48607622 Application Field and Working Principle

The T491B335K025ZT48607622 is a tantalum capacitor with excellent electrostatic discharge (ESD) and high temperature stability, and is intended for use in harsh environment applications. Its unique construction and careful material selection makes it ideal for use as an EMC filter in telecommunications, aerospace, and automotive industries.

The T491B335K025ZT48607622 is a double-anode, polymer-based, organic solid electrolyte (POLYOS), surface-mounted capacitor. Its construction features two plates of sintered tantalum electrodes separated by a layer of electrolytic manganese dioxide. The whole assembly is encapsulated in a sealed, molded resin case to provide strong insulation and mechanical protection.

The capacitor\'s working principle is based on the polarization effect of single-layer capacitors. When an electrical field is applied to the capacitor, the negative and positive charges tend to separate and accumulate in the capacitor\'s plates. This results in a voltage drop between the capacitor plates, which in turn creates a storage of electrical charge.

The working principle of double-anode capacitors is slightly different than that of single-layer capacitors in that two plates are interleaved between each other. This creates a larger area of surface contact between the two plates, allowing for higher capacitance values. In addition, the interleaving also increases the self-healing capability of the capacitor, allowing it to withstand higher ESD levels and temperatures.

The unique properties of the T491B335K025ZT48607622 make it highly suitable for a variety of applications, particularly in the areas of telecommunications, aerospace, and automotive industries. These applications range from EMC filters to power-supply decoupling capacitors to board level protection.

The most common uses for the T491B335K025ZT48607622 include:

• Power-supply decoupling capacitors for high-frequency and high-speed signaling systems
• EMC Filter capacitors for automotive, telecommunications, and aerospace industries
• Board level protection capacitors for high-frequency data lines and power rail decoupling

Overall, the T491B335K025ZT48607622 tantalum capacitor is a highly reliable and versatile component which is suitable for a wide range of applications and environments. Its unique construction and careful material selection make it ideal for use in high-performance and harsh environment applications.

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