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Introduction to Tantalum Capacitors - M39003/01-6105/TR Application Field and Working Principle

Tantalum capacitors are a type of capacitor that is composed of a tantalum metal powder, which is compressed and sintered to form a pellet as the anode of the capacitor. A dielectric oxide layer is then formed on the surface of the anode, to which a cathode material is vapor-deposited. A tantalum capacitor is not a simple device like most other capacitors; it is a complex device, consisting of two terminals with an oxide capacitance element between them.

The M39003/01-6105/TR of the tantalum capacitor is primarily used in military and aerospace applications due to its high reliability. This series is especially designed for use in extremely harsh environments and offers exceptional performance and reliability, allowing for deployment in space and aircraft applications. This series also has a lower price range than the comparable commercial series.

The working principle of the M39003/01-6105/TR is based on the principle of electrostatic capacitance, but with an additional feature known as “preforming.” At the heart of the device is a tantalum pellet that is electrolytically preformed prior to the completion of the capacitor assembly. This preforming process is unique to tantalum capacitors and ensures that the capacitance value of each capacitor is precisely controlled. Prior to preforming, a thin inorganic layer (dielectric) forms around the tantalum pellet, forming the electric double layer necessary for the capacitor to work.

The double layer is then maintained by the application of a voltage, which is provided from a circuit external to the capacitor. The electric double layer is the capacitance element of the capacitor; it is the part that stores charge in the form of an electrical field. When a voltage is applied across the capacitor’s leads, a capacitance (C) is created, which is measured in Farads.

The ability of the M39003/01-6105/TR to accurately maintain its capacitance value makes it ideal for use in applications requiring frequency control and precision such as microprocessors, computers, and other integrated circuits. This series also has the added benefit of being radiation resistant due to its non-metallic electrode, making it suitable for use in military and aerospace applications.

In summary, the M39003/01-6105/TR is a tantalum capacitor series that is specially designed for use in harsh operating environments, such as the military and aerospace industries. Its unique preforming process and accurate capacitance values make it an ideal choice for applications requiring accuracy and reliability.

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