M39003/01-2621/HSD

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Tantalum Capacitors

Tantalum capacitors are a widely used type of electrolytic capacitor. Depending on the specific type of capacitor, their characteristics can vary. In particular, the M39003/01-2621/HSD type of tantalum capacitor is characterized by a number of unique features and specifications.

Application Field and Working Principle

Tantalum capacitors have a wide range of applications, the most common being in the communications, computer, and military/aerospace markets. They are especially useful as power supply filters, resonators, decoupling capacitors, and coupling capacitors. The M39003/01-2621/HSD model is often used as an output power supply capacitor due to its high temperature and low impedance capability.

The basic principles of how a tantalum capacitor works involve the storage of electrical energy in a form of electric field. This is created by charging both the anode and cathode, which are made from tantalum pentoxide. When voltage is applied to the capacitor, an electric field forms between the anode and cathode, creating an electric charge and stored energy. This electric charge is then released when the voltage is removed from the capacitor, providing a current flow.

Specifications

The M39003/01-2621/HSD capacitors are rated at 25V with maximum capacitance values of 330µF, and a temperature range of -55°C to +125°C. The devices are also available in a radial leaded package with a maximum operating temperature of +85°C. Capacitance tolerance and equivalent series resistance are rated at ±20% and 65mhoms respectively. It is important to note that the capacitance value is only accurate at temperatures between 25°C and +85°C.

Advantages and Limitations

The main advantage of the M39003/01-2621/HSD type of capacitor is that it has a high temperature rating of +125°C, making it suitable for applications with high temperature requirements. In addition, they have a relatively low equivalent series resistance, which further enhances their performance. On the other hand, the capacitance tolerance is relatively low, which means that accurate and reliable predictions cannot be made when replacing them in a circuit.

Conclusion

The M39003/01-2621/HSD tantalum capacitor is a widely used type of electrolytic capacitor, suitable for a range of applications from communications and computer to military and aerospace applications. It has a high temperature rating and low equivalent series resistance, making it an attractive choice for power supply filters and output capacitors. However, the capacitance tolerance is relatively low, making accurate predictions impossible when replacing them in a circuit.

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