M39003/01-5446H

Tantalum Capacitors

Tantalum capacitors are one of the most commonly used types of capacitor. They consist of a tantalum wire wound in a cylindrical plastic casing, with an insulating material between the inner and outer layers. Unlike ceramic or electrolytic capacitors, tantalum capacitors can store a relatively high amount of energy in a given size and they can handle temperatures up to about 200°C. This makes them well-suited for applications that require a relatively large capacitance in a small space and/or in high temperatures or high-vibration environments.

M39003/01-5446H Application Field

The M39003/01-5446H tantalum capacitor is a commonly used type of electrolytic capacitor. It is typically used in applications for which a higher capacitance is required than what other capacitor types can provide, such as those with high ripple currents, high voltage applications, or applications in which a low ESR (equivalent series resistance) is desired. An example application for the M39003/01-5446H would be in power supplies, where it is used to hold a certain voltage for a certain amount of time.

M39003/01-5446H Working Principle

The M39003/01-5446H tantalum capacitor works on the principle of electrochemical double layer capacitance. In this type of capacitor, two layers of metal oxide separated by an electrolyte layer are separated by an insulating layer. When a voltage is applied, the electrolyte layer reacts to reactive ions within the electrolyte, forming a double layer of capacitance. The amount of capacitance that is stored in this double layer is dependent on the thickness of the insulating layer and the electrolyte used. The M39003/01-5446H is capable of storing a relatively large amount of energy in a given size due to its high dielectric constant combined with the small physical thickness of its components.

The M39003/01-5446H is a polarised capacitor, meaning that voltage is applied from only one side of the capacitor. This is because the electrolyte layer and oxide layer must be positioned correctly in order for the capacitor to work properly. If the capacitor is connected in reverse, the electrolyte layer and oxide layer will be positioned incorrectly, causing the capacitor to be damaged. It is recommended that the terminal connections on the capacitor match the polarisation symbols on the capacitor in order to ensure proper functioning of the capacitor.

The M39003/01-5446H also features high temperature stability due to its temperature coefficient of capacitance, meaning that it is able to perform reliably in high temperature applications or high-vibration environments. The capacitor is also able to withstand reverse voltage, making it suitable for applications which require high ripple currents or high voltage. Finally, it has an acceptable ESR rating, making it a good choice for applications which require a low equivalent series resistance.

Conclusion

The M39003/01-5446H tantalum capacitor is an excellent choice for a wide range of applications which require a relatively high capacitance in a small space and/or high temperatures or high-vibration environments. It is capable of storing a large amount of energy due to its high dielectric constant and it is able to withstand high temperatures, making it suitable for applications which require a highly reliable capacitor. As it is polarised, it should be connected properly in order to ensure proper functioning and it has an acceptable ESR rating for applications which require a low ESR.