There is a tantalum anode and electrolytic capacitor in a tantalum capacitor. They are polarizing capacitors, so they have good frequency and stability. Compared with aluminum electrolytic capacitors, tantalum capacitors are very stable over time and generate less heat. Tantalum capacitors are now widely used in a variety of circuits, including computers, cars, mobile phones and other electronic devices. One of the most common tantalum capacitors is surface mounted equipment.