UPJ1C821MPD1TD Capacitors

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The UPJ1C821MPD1TD is an aluminum electrolytic capacitor. It belongs to a type of capacitor that uses electrolytic aluminum foil separated by a dielectric paper as its electrodes. If two such electrodes are placed inside a suitable polarizing liquid, the resulting device is known as an electrolytic capacitor.

Application Field

The UPJ1C821MPD1TD is a radial aluminum electrolytic capacitor. As its name implies, it is the most commonly used in applications requiring a relatively large capacitance value with a relatively small size. They are commonly used in power supplies, UPS, audio systems, automotive electronics, and other applications requiring a larger capacitance value.

Working Principle

The working principle of the UPJ1C821MPD1TD is based on the fact that one of the capacitor’s electrodes is made from an electrolyte aluminum foil which, when polarized by a voltage, stores charges in a distributed fashion on both sides of the dielectric paper separator. This effect increases the effective surface area of the element and consequently increases its capacitance. When a voltage is applied across the two electrodes, the charges redistribute themselves corresponding to the magnitude of the applied voltage and this again increases the effective surface area (and hence the capacitance as well). This process repeats itself with every voltage increase/decrease, and the capacitance of the capacitor ultimately varies according to the magnitude of the applied voltage.

Conclusion

The UPJ1C821MPD1TD aluminum electrolytic capacitor is a commonly used radial capacitor suitable for applications requiring a relatively large capacitance value with a relatively small size. Its working principle is based on the redistribution of charges on the dielectric paper separator due to the voltage applied to the capacitor.

The specific data is subject to PDF, and the above content is for reference