What is tantalum capacitor, its characteristics, principles, classification, operating procedures, and development trends 2

2、 The principle of tantalum capacitors:

The principle of tantalum capacitors is to use the capacitance formed at the interface between tantalum metal and oxide to store charges. Tantalum metal acts as the positive electrode and oxide acts as the negative electrode, forming a capacitor between the two through the electric field effect. When an external voltage is applied to a tantalum capacitor, charge is stored between the two plates of the tantalum capacitor.diode

3、 Classification of Tantalum Capacitors:

According to their different structures and working principles, tantalum capacitors can be divided into two types: solid electrolytic tantalum capacitors and organic electrolytic tantalum capacitors.diode

1. Solid electrolytic tantalum capacitors: This type of tantalum capacitor is the most common. It uses a thin film as the positive electrode, with electrolyte attached to the film to form the negative electrode, and a capacitor is formed between the two through the electrolyte. Solid electrolytic tantalum capacitors have high capacitance density and low ESR (equivalent series resistance), making them suitable for high-performance circuits.diode

2. Organic electrolytic tantalum capacitors: This type of tantalum capacitor uses an organic electrolyte. Due to the different electrolytes, organic electrolytic tantalum capacitors can be further divided into two types: organic solid electrolytic capacitors and organic liquid electrolytic capacitors. Organic electrolytic tantalum capacitors have low ESR and high frequency characteristics, making them suitable for high-frequency circuits and power circuits.diode