199D335X0010A6V1E3

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Tantalum Capacitors

Tantalum capacitors, with the part number 199D335X0010A6V1E3, are capacitors with tantalum oxide anode and cathode metalized electrodes. They are polarized devices that are widely used in portable and handheld electronic devices due to their small size, lightweight, and high capacitance per unit volume.

Application Field

Tantalum capacitors are often used in low to medium frequency AC and DC circuits, some common applications include:

• Equalizing the supply voltage in switch mode DC power supplies.
• Reducing noise and ripples in AC/DC power supplies.
• Decoupling the supply voltage in high-frequency circuits.
• Soft-start capacitors in circuits.
• Providing DC filtering in high-frequency switching circuits.
• Voltage stabilizing in telephone and telecommunications applications.

Working Principle

A tantalum capacitor works by storing and releasing charge in response to changes in voltage. The anode and cathode terminals of a tantalum capacitor are connected to a tantalum material. When a voltage is applied, the chemical reaction between the electrodes causes the electrons to move and stores the charge. When the voltage is removed, the charge stored in the capacitor releases and flows back out.

Tantalum capacitors are usually polarized capacitors, meaning they have a positive and negative lead. If a tantalum capacitor is connected with the wrong polarity, it can be damaged and even burst. To prevent this, they either have polarity markings on the case or a feature to stop reverse connections.

Advantages of Tantalum Capacitors

Tantalum capacitors offer several advantages over traditional aluminum electrolytic capacitors:

• High volumetric efficiency – Tantalum capacitors have higher capacitance-to-volume ratios.
• Low dissipation factor – Tantalum capacitors have lower ESR, resulting in greater desirable ripple current.
• Ruggedness – Tantalum capacitors can withstand higher temperatures and higher voltage spikes.
• Better temperature stability – Tantalum capacitors are more resistant to changes in temperature due to the stable molecular structure of the anode.
• Good reliability – Tantalum capacitors provide better service life and fewer failures. Their failure rate is significantly lower than that of aluminum electrolytic capacitors.

Disadvantages of Tantalum Capacitors

Despite their advantages, tantalum capacitors also have some drawbacks:

• Limited temperature range – Tantalum capacitors have a limited operating temperature range of 85°C.
• Hazardous materials – Tantalum capacitors contain toxic materials and can pose a hazard if not disposed of properly.
• Limited frequency response – Tantalum capacitors have limited frequency response due to their construction.
• Low Self-Healing – Tantalum capacitors don’t self-heal quickly if they become shorted.

Conclusion

Tantalum capacitors, with the part number 199D335X0010A6V1E3, are small, lightweight devices with large capacitance per unit volume. They are most often used in low to medium frequency AC and DC circuits, such as switch mode DC power supplies, high-frequency circuits and voltage stabilizing in telephone and telecommunication applications. Tantalum capacitors also offer some advantages over traditional aluminum electrolytic capacitors, such as high volumetric efficiency, low dissipation, and good reliability. However, they also have some drawbacks, such as limited temperature range and hazardous materials.

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