Tantalum Capacitors

Tantalum capacitors, or electrolytic capacitors, are electrolytic capacitors that use an oxide of tantalum (Ta2O5) as its dielectric material, and act as energy storage elements. They are often manufactured as cylindrical components and have a much higher capacitance per unit volume than ceramic or standard aluminum electrolytic capacitors. Tantalum capacitors are widely used in various areas including computers, mobile phones and other consumer electronic products.

M39003/03-0315/HSD Application Field and Working Principle

M39003/03-0315/HSD is a tantalum capacitor. It has a capacitance of 15μF and a rated voltage of 25V. It is a component for general applications, suitable for use in various electronic equipment. It is often used in fields such as automotive electronics, consumer electronics, power, defense and other applications, and can also be used in combination with other capacitors.

The working principle of a tantalum capacitor is based on the principle of an electrolysis, which converts electrical energy into chemical energy. A tantalum capacitor consists of a tantalum oxide (Ta2O5) film, an anode, and an electrolyte. When a voltage is applied to the capacitor, the voltage divides the electrolyte into a negatively charged anode and a positively charged cathode. This creates an electric field across the oxide film, which causes electrons to flow from the anode to the cathode, forming an electrostatic capacitance. The capacitance of the tantalum capacitor depends on the thickness and dielectric constant of its oxide film.

Tantalum capacitors have many advantages including low equivalent series resistance (ESR), high dielectric constant, low cost, and low leakage current. Their relatively small size also allows for compact design of printed circuit boards. However, they also have certain drawbacks. They have relatively high capacitance fluctuation at high temperatures and higher self-heating than other capacitors. Additionally, they have a limited life expectancy and can also leak hazardous chemicals if exposed to moisture.

In conclusion, M39003/03-0315/HSD is a tantalum capacitor with a capacitance of 15μF and a rated voltage of 25V. It is a suitable component for use in various electronic equipment, and its working principle is based on the principle of electrolysis. It has many advantages, such as low ESR and low leakage current, but it can also suffer from self-heating and capacitance fluctuation at high temperatures.