173D564X9035VWE3

173D564X9035VWE3 Application Field and Working Principle

Tantalum capacitors are electrolytic capacitors with polarised construction, manufactured from a solid metal oxide layer. They are characterized by their high stability and low equivalent series resistance (ESR), which makes them ideal for high frequency applications in the audio and radio frequency range. This makes them especially suitable for use in portable electronics, where size and weight are important factors.

Tantalum capacitors are also widely used in industrial control circuitry and in military and aerospace applications. The capacitor code 173D564X9035VWE3 refers to a 47μF 6.3V tantalum capacitor with a rated maximum working voltage of 25V.

Tantalum capacitors consist of two parts: the anode (positive) and the cathode (negative). A layer of tantalum oxide is formed on the anode and serves as the dielectric material. The oxide layer is surrounded by a conducting layer of titanium. An electrolyte is then used to create a chemical reaction between the two electrodes, forming a charge. The charge is then stored in the capacitance until it is discharged.

The most important feature of tantalum capacitors is its superior stability to temperature and voltage changes compared to other capacitor types. This makes them suitable for applications where long life and high reliability is a must. Additionally, its low ESR makes it suitable for high frequency applications and its ability to store large amounts of energy makes it useful in surge applications.

The capacitance of tantalum capacitors is relatively low and their dissipation factor is relatively high. This means that their self-heating is greater than other types of capacitors. This can be a disadvantage in certain applications, especially where high-temperature environments need to be avoided.

Tantalum capacitors are relatively expensive when compared to other capacitor types, but their superior reliability and interchangeability make them suitable for certain applications, such as military and aerospace, where cost is not as important as reliability.