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The difference between tantalum electrolytic capacitors and aluminum electrolytic capacitors

Source: Industry News Editor: PingShang Click: Release time: 2021-12-28 08:18:57

The difference between tantalum electrolytic capacitors and aluminum electrolyticcapacitors

Regarding the difference between tantalum capacitors and electrolytic capacitors, tantalum capacitors are a type of electrolytic capacitors. The full name of tantalum capacitors is tantalum electrolytic capacitors. They are characterized by small size and large capacity. Here, let me talk about the differences between tantalum capacitors and electrolytic capacitors. Get up and understand.文章配图28

1. Tantalum electrolytic capacitors

Advantages: very low ESR value, excellent performance in filtering high frequency and changing waves, wide operating temperature range, various forms, excellent volumetric efficiency, long life, high precision, and high mechanical strength.

Disadvantages: small capacity, low rated withstand voltage, poor surge resistance, and more expensive than aluminum electrolysis.

2. Aluminum electrolytic capacitors

Advantages: low price, high rated withstand voltage, strong surge resistance.

Disadvantages: short storage life, different service life, different prices, and greatly affected by temperature.

The working medium of tantalum capacitor is a very thin tantalum pentoxide film formed on the surface of tantalum metal. This layer of oxide film dielectric is combined with one end of the capacitor to form a whole and cannot exist alone.

It has a very high working electric field intensity per unit volume and a large capacitance, that is, a very high specific capacity, which is especially suitable for miniaturization. Tantalum capacitors can be used in military communications, aerospace and other fields. Tantalum capacitors are widely used in industrial control, film and television equipment, communication instruments and other products.