T491A105M020AT2478

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Tantalum Capacitors

A tantalum capacitor is an electronic component made of tantalum as the anode and an oxide as the dielectric layer. This type of capacitor is known for its small size and higher volumetric efficiency than that of its aluminum electrolytic counterpart. It offers higher temperature performance, longer life, better ripple resistance and higher dc leakage characteristics compared to other capacitor types.

The T491A105M020AT2478 is a specific type of tantalum capacitor. It is available in a variety of forms, such as axial leads for printed circuit board mounting, radial leads for PC board or through-hole mount, and a molded version for surface mount. The T491A105M020AT2478 also provides a high capacitance-voltage ratio and low ESR (Equivalent Series Resistance), making it ideal for cases where higher capacitance is required at relatively low voltages.

T491A105M020AT2478 Application Fields and Working Principle

T491A105M020AT2478 tantalum capacitors are used in a range of applications, including high-performance consumer audio and video, telecommunications, computer systems, automotive electronics and consumer electronic products. They are also widely used in military, power and aerospace applications, due to their high volumetric efficiency, high ripple resistance, and high temperature operation.

The T491A105M020AT2478 has a working principle based on Faraday’s law of induction. When an applied voltage reaches the cathode, a current flows through the metal oxide dielectric which causes electrons to accumulate at the interface between the metal and the dielectric. This creates a dipole within the dielectric layer, resulting in a charge that accumulates at that interface. This is the capacitance of the tantalum capacitor, and it is defined as the ratio of a given charge to the potential difference across the plate.

The high tolerance to temperature and the robust mechanical design of this type of capacitor make it very useful in a variety of applications. The high temperature characteristics make it ideal for use in the automotive environment, while its long life makes it ideal for use in long-term commercial, industrial and military applications.

The T491A105M020AT2478 is a very reliable and efficient type of capacitor. It is used in a great variety of applications, from consumer audio and video to automotive electronics and military, aerospace and power supplies. It is also highly suitable for applications where high capacitance is required at lower voltages, and its robust and reliable design ensures long life and high temperature performance.

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