450BXW47MEFR12.5X40

Aluminum electrolytic capacitors are a type of capacitor that uses aluminum oxide as a dielectric medium for facilitating electrical energy storage. Aluminum electrolytic capacitor has many advantages over other types of capacitors such as low ESR (equivalent series resistance), high capacitance values, low leakage current, long service life and low self-inductance.

The 450BXW47MEFR12.5X40 aluminum electrolytic capacitors are designed to meet the requirements of UL, CSA, and IEC standards. This capacitor has a wide range of applications and working principles.

Application Field

The 450BXW47MEFR12.5X40 aluminum electrolytic capacitor is mainly used to maintain the stability of DC voltage in electronic products. It also finds application in the fields of power electronic converters, power supplies, solar chargers, audio equipment, battery chargers, switching power supplies, motor drives and other areas in need of energy storage and filtering.

Working Principle

Aluminum electrolytic capacitors operate by using the dielectric of an oxide layer formed on the surface of the aluminum foil. This oxide layer provides the electrical insulation and is also used as the dielectric medium for storing electrical energy. The electrical energy stored in the capacitor is released by means of electrochemical reactions within the dielectric.

When a voltage potential is applied across the capacitor, positive ions migrate through the dielectric to the negative plates, causing a build-up of positive charge on the negative plates. This creates an electric field and the corresponding electric charge on the plates, thus completing the capacitive energy storage process. The capacitor then acts as an energy storing device, ready to release the stored energy when an external current is applied. The discharged current will then flow through the aluminum plates, which has the lowest resistance.

The 450BXW47MEFR12.5X40 aluminum electrolytic capacitor has a leakage current of 0.001 microamps with a low ESR of 0.3 ohms at 20 °C. The product also offers up to 20,000 hours of stable working life at -40 to + 100 °C.

In conclusion, the 450BXW47MEFR12.5X40 aluminum electrolytic capacitor is a reliable and efficient capacitance for a wide range of applications in need of energy storage and filtering. It has the advantage of low ESR, high capacitance values, low leakage current, long service life and low self-inductance.