M39003/01-5682

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Tantalum Capacitors

M39003/01-5682 Application Field and Working Principle

Tantalum capacitors are types of electrolytic capacitors that use an oxide layer of tantalum as one of its main features. They are mainly used in applications that demand tight tolerances, high capacitance in a small package, low-equivalent series resistance (ESR), or all of the above. The use of tantalum capacitors has become increasingly common due to their ability to achieve all of the above characteristics while offering reliable performance in a small form factor.

The M39003/01-5682 is a series of tantalum capacitors that are designed for use in high temperature applications. They offer an increased capability to dissipate heat, making them suitable for mounting on a circuit board in close contact with a high temperature environment. These capacitors are available in various sizes ranging from 220 to 30000 microfarads. The package includes a radial lead design, radial through-hole solder mounting, and radial and surface mount options. The capacitance values will remain stable over the specified temperature range, ranging from -55 to +125 degrees Celsius.

The working principle behind a tantalum capacitor is the same as for any other type of capacitor. It uses two conducting surfaces separated by a dielectric material. In the case of tantalum capacitors, the dielectric is an oxide layer of tantalum that is formed in wet electrolytic solutions or when the tantalum foil interacts with gaseous oxidation agents. This oxide layer acts as an insulator, allowing electric charge to accumulate on the two surfaces thus forming an electrical field that stores energy.

When the capacitor is charged, electric current passes through it and the oxide layer acts as a barrier. As the current passes through the capacitor, an electric field is created, allowing the capacitor to store energy and generate an output voltage that is proportional to the applied charge. As the capacitor is discharged, the energy is released as the current passes from the source, across the dielectric material, and back to the source.

The advantages of using tantalum capacitors include low equivalent series resistance (ESR), high capacitance, and a reliable performance in small form factors. Furthermore, the oxidation process used to create the oxide layer of tantalum is extremely efficient, allowing the capacitor to retain its capacitance over the long term.

The M39003/01-5682 is a series of highly reliable and robust tantalum capacitors that are designed for applications that require tight spacings and high temperatures. They have a radial lead design, radial through-hole solder mounting, and radial and surface mount options that make them suitable for a wide range of applications. The capacitance values will remain stable over the specified temperature range, ranging from -55 to +125 degrees Celsius.

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