M39003/01-6228/TR

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Tantalum Capacitors

Tantalum capacitors use tantalum metal as the anode material, often in the form of a foil. Oxide-coated tantalum powder is pressed into a pellet and sintered to produce a compact anode. A dielectric layer and then a layer of anodic oxide are formed by vacuum or electrolytic deposition.

M39003/01-6228/TR Application Field and Working Principle

M39003/01-6228/TR are spiral wrap tantalum capacitors, which provide high reliability, excellent electrical performance and board space savings for reliable operation in differing and challenging environments. These are designed to suit commercial applications and are available in an extended voltage range and total rated capacitance. It is very useful for designing of power supplies, scrubbers and computer circuits, and low voltage pulse circuits.

The working principle of the M39003/01-6228/TR starts with an anode made of a highly conductive metal material such as tantalum. The anode is then covered with an electrolyte and dielectric material. The dielectric material forms an insulator between the anode and the cathode, which is typically made of aluminum. When a potential voltage is applied across the terminals of the capacitor, current begins to flow, and an electric field is created in the dielectric material between the anode and cathode.

The purpose of the electric field is two-fold: it creates an attractive force between the plates, and it also significantly reduces the resistive losses caused by the electrolyte. The attractive force helps to keep the two plates of the capacitor separated by a fixed distance; while the reduced resistance increases the amount of electric charge that is stored in the capacitor at a given voltage. The electric charge stored in the capacitor is proportional to the capacitor\'s capacitance, and is measured in terms of Farads.

The M39003/01-6228/TR is ideal for applications which require large capacitances, and feature a wide operating temperature range of -55°C to +125°C. They are also well-suited to use with battery backups or power converters as they feature a reliable rated voltage and can also be used in sensitive electronic applications.

Compared to traditional capacitors, tantalum capacitors feature better temperature stability due to their low ESR, thus reducing power loss and allowing for high-frequency operation. In addition, the oxide layer increases insulation and improves reliability in conditions that are prone to vibration. Furthermore, the low impedance of the M39003/01-6228/TR increases ripple current ratings and enables higher current capacity at the same size. All these features make the use of tantalum capacitors highly desirable for installations in hostile and extreme environments.

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