What is tantalum capacitor, the difference between tantalum capacitor and electrolytic capacitor 2

The electrolyte used in electrolytic capacitors can be liquid or solid. The common types of electrolytic capacitors are aluminum electrolytic capacitors and tantalum electrolytic capacitors, with aluminum electrolytic capacitors being more common. The anode of aluminum electrolytic capacitors is made of refined aluminum foil, and the surface is chemically corroded to form a large number of micropores to increase the effective surface area. By forming a thin layer of aluminum oxide film on the anode aluminum foil as the dielectric and using liquid or solid electrolyte as the cathode, the AD820ARZ-REEL7 capacitor is finally packaged.diode

The difference between tantalum capacitors and electrolytic capacitors

1. Dielectric material: Tantalum capacitors use tantalum dioxide as the dielectric, while electrolytic capacitors typically use aluminum oxide or tantalum oxide.diode

2. Stability and reliability: Tantalum capacitors typically exhibit higher stability and reliability within the operating temperature range due to their unique physical and chemical properties.diode

3. Volume and Capacity: Tantalum capacitors typically provide higher capacitance values at the same volume due to the high dielectric constant of tantalum dioxide.diode