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Tantalum Capacitors

Tantalum capacitors are polarized capacitors composed of tantalum as the anode material, with an oxide film as the dielectric and a solid manganese dioxide (MnO₂) as the cathode material. The tantalum capacitor is the perfect choice for a wide range of surface mount applications because of its small size, low cost, good stability, and very low ESR, resulting in superior performance in filtering applications. This type of capacitor is also known as an oligo capacitor or polymeric capacitor due to its molecular structure, and is commonly seen in motherboards and other applications that require frequent charge and discharge processes.

199D474X0035A2A1 Application Field and Working Principle

The 199D474X0035A2A1 is a high-grade, miniature, SMD tantalum capacitor ideal for multi-MHz frequency applications. This capacitor has a capacitance of 47µF and an ESR of 35mOhms and features robust construction, improved performance, and increased reliability.

The tantalum capacitor works by converting energy into a charge that can be stored statically on a capacitor. When there is a positive voltage applied, the anode of the tantalum capacitor absorbs electrons, resulting in a positive charge on the anode and a negative charge on the cathode. When the anode is disconnected from the power, the negative charge of the cathode will repel the electrons, resulting in a net positive charge on the anode, thereby storing the charge.

The 199D474X0035A2A1 is designed for high frequency applications in which its low ESR and high capacitance help provide excellent performance and reliability. The capacitor is popularly used in automotive, industrial, and other high frequency electronic circuits. It is commonly used in applications such as audio loudspeakers, RFID readers, cellular phones, motherboards, etc. Its excellent performance also makes it suitable for high frequency pulsed power circuits and filtering in microprocessors.

The 199D474X0035A2A1 capacitor is able to withstand very large voltage spikes and transients and has a capacitance range of between 25 and 135 microfarads and a voltage range of between 16 and 50 volts. It is also able to resist high temperature environments and the low ESR ensures that it can handle extremely high frequencies. Additionally, the capacitor provides excellent temperature stability and its high capacitance allows for applications with very low resistance.

Tantalum SMD capacitors like the 199D474X0035A2A1 are well suited to high power electronics applications due to their high stability, excellent performance, and low cost. The capacitor is also very reliable and is able to provide reliable performance with minimal maintenance. The 199D474X0035A2A1 is an ideal choice for applications requiring high frequency, high stability, and low ESR.

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