How to choose electrolytic capacitors

How to choose chip electrolytic capacitors

We all know that electrolytic capacitors are the shortcoming of the life of many electronic devices. In the power supply circuit, it is inseparable from the use of various capacitors for filtering, energy storage, bypassing, etc., to understand the failure mode of electrolytic capacitors, and to select suitable electrolytic capacitors according to the application. Capacitor is one of the essential skills to ensure stable and reliable power supply.

Aluminum electrolytic capacitors are often used in the input and output filter circuits of power supplies because of their low price, large capacity and high withstand voltage. Many people say that aluminum electrolytic capacitors are afraid of high temperature, and the liquid electrolyte can easily cause the core to heat up, or when the temperature is high, the electrolyte will volatilize, which will cause the electrolyte to dry out and fail for a long time.

In fact, the life of electrolytic capacitors is negatively correlated with the ambient temperature in which the capacitors work for a long time. Ordinary electrolytic capacitors have been damaged when the ambient temperature is 90°C, but now there are many types of electrolytic capacitors whose working ambient temperature is higher than 90°C. When the ratio of the alternating current through the electrolytic capacitor to the rated pulse current is 0.5, the life is still 10000h.

The following recommends PAGOODA TECHNOLOGY CO's aluminum electrolytic capacitors:

1. Package sizes include 0405, 0504, 0605, 0607, 0810, 1010

2. The capacity specification ranges from 0.1UF to 470UF. Conventional specifications are in stock. We specially offer customized services. We can satisfy the capacity value you want!

3. The voltage is 4V～400V

4. Errors include J±5%, K±1%, M±20%

The main functions of our chip aluminum electrolytic capacitors include:

Filtering, energizing, coupling, starting, etc.

Mainly used in: power supply products, lighting equipment, automotive electronics, intelligent electronic products, network communication equipment automation equipment, etc.