M39003/01-3193H

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The M39003/01-3193H is a general purpose, tantalum capacitor with a broad range of applications. It is a miniature, non-polarized capacitor with an aluminum welded case. This component integrates the technology of the conventional electrolytic capacitor into a smaller, more reliable technology, making it suitable for a wide variety of applications, from consumer electronics to automotive and aerospace applications.

Tantalum Capacitor Technology

Tantalum capacitors are constructed using a type of capacitor that utilizes a tantalum metal anode, a dielectric oxide layer, and a formed manganese dioxide cathode. Together they form a non-polar capacitor that is small in size but powerful in performance. The steel case of the M39003/01-3193H is hermetically sealed, with both positive and negative terminations for connecting to the desired circuitry. The electrolyte used is typically an aqueous sulfuric acid solution.

The anode of a tantalum capacitor consists of a sintered tantalum pellet that is manufactured by pressing or sintering powdered tantalum and then adding a small amount of oxide. This oxide acts as the dielectric for the capacitor, and its formation is known as anodization. The amount of oxide formed depends on the charging current, and higher currents result in thicker dielectrics and greater capacitance. The dielectric oxide layer serves the same purpose as that of wire insulation or mortar between two bricks. The formation of the oxide layer is a very important stage in the fabrication of a tantalum capacitor.

The cathode of the M39003/01-3193H is formed from a pressed powder of manganese dioxide. When the capacitor is energized, the manganese dioxide pellets generate ions that are attracted to the anode. This creates an electric field across the dielectric layer and charges the capacitor. The capacitor can then hold this charge until it is discharged. The capacitance of the cathode depends on the amount of manganese dioxide used, and the amount of powder is determined by the required capacitance.

Application Fields and Working Principle of the M39003/01-3193H

The M39003/01–3193H tantalum capacitor is designed for applications that require a miniature and reliable component. It is suitable for use in a range of consumer electronics, automotive, and aerospace applications. This capacitor can be used for power supply bypasses, decoupling and energy storage applications.

The working principle of the M39003/01-3193H is built on the same principle as other tantalum capacitors. When the capacitor is energized, an anode layer of tantalum is formed, creating a dielectric that is able to hold a charge. The cathode is formed from a pressed powder of manganese dioxide, which, when energized, generates ions that are attracted to the anode. This creates an electric field across the dielectric layer and charges the capacitor.

In addition to its small size and excellent performance, the M39003/01-3193H also offers excellent reliability. The aluminum welded case provides a hermetic seal that ensures no errors are caused by moisture ingress in the application. The advantage of using an aluminum sealed case is that it prevents corrosion of the anode and cathode, and therefore ensures the capacitance remains stable over time.

Along with reliability, the M39003/01-3193H promises long-term performance. Its high temperature and voltage ratings make it perfect for a wide range of applications. With its proven performance, it is the perfect choice for any application that requires a reliable and robust miniaturized capacitor.

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