M39003/01-6399C

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M39003/01-6399C application field and working principle

Tantalum capacitors are widely used in telecommunications, automotive, aerospace and other fields. They can provide bulk energy storage, energy supply stability and other functions. Its application field and working principle are explained below.

Application Field

Tantalum capacitors are widely used in many types of products. For example, they can be used as decoupling capacitors in computers, watches, cameras, printers and other electronic products; they can also be used as switching power supplies and memory backup energy sources in television receivers, mobile phones and digital cameras; in communication systems, they can be used to filter signals and reduce peak voltage; they can be used in autopilot systems, defense systems, radar navigation systems, satellites and other aerospace products. In addition, they can also be used in medical equipment, DC-DC converters, instrument power supplies and automotive electronic control systems.

Working Principle

Tantalum capacitors consist of a solid electrolyte, a metal oxide, and two tantalum metal electrodes that form an electrical connection when charging and discharging. When the capacitor is in the DC state, a space charge layer will be formed on the surface of the oxide layer on the cathode. This layer will prevent ions from entering or leaving the oxide layer. As a result, this space charge layer will allow small current to pass through it, while blocking large current from passing. The energy stored in the tantalum capacitor will be at maximum when the capacitor is fully charged. When the capacitor is discharged, the current will interrupt the interaction between the metal oxide and the charge layer, thus causing the space charge potential to drop and electric charge to start flowing out of the capacitor.

In addition, when the capacitor is connected to the AC voltage, a different phenomenon will occur. When the voltage is applied, the electric field in the space charge layer will increase tremendously and increase the current flow. When the voltage is reduced, the field will also decline and cause current to also decrease. As a consequence, the current flowing through the capacitor will follow the same pattern as the applied voltage, hence producing the much-desired filter effect.

Conclusion

In summary, the application field and working principle of M39003/01-6399C tantalum capacitors have been discussed in this article. These capacitors are widely used in many products, from computers, communication systems to aerospace, medical and automotive applications. They possess many advantages, such as stability and reliability, making them indispensable components for many modern products.

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