B41889A4477M8

Aluminum Electrolytic Capacitors

An aluminum electrolytic capacitor is an electronic component consisting of two aluminum foils separated by an electrolyte. The aluminum foils act as electrodes, while the electrolyte acts as a dielectric medium. The most common type of aluminum electrolytic capacitors are the “snap-in” type, which consist of a molded plastic case around the cylindrical capacitor. This type of aluminum electrolytic capacitor is commonly used in power supplies, audio equipment, and high-power electronic circuits.

B41889A4477M8 Applications Field and Working Principle

The B41889A4477M8 aluminum electrolytic capacitor is a long-life, low-impedance capacitor with an operating temperature range of -40 C to 85 C. It is designed to provide filtering and smoothing of power supply lines. Its most common application is as a decoupling capacitor for switching power supplies, as it can provide a low-resistance path to allow the power supply switching circuit to function without interference from large ripple currents on the input side.

The B41889A4477M8 has a very stable dielectric constant across its temperature range. Its electrolyte is a combination of aluminum, titanium, and tantalum nitrate, giving it a longer life and higher capacitance than many other types. Its compact size and extended life make it ideal for use in high-voltage applications, such as motor control circuits and frequency converters.

The operating principle of the B41889A4477M8 is simple. It functions as a filter by absorbing unwanted AC ripple present on the power supply line. The frequency at which it is most effective is usually around the switching frequency of the power supply. It’s capacitance acts in combination with the internal resistor in the capacitor to form a low-pass filter, which reduces the amount of high-frequency noise that can enter the power supply circuit. It also states the working frequency and temperature range of the capacitor.

The B41889A4477M8 aluminum electrolytic capacitor is an efficient and cost-effective component for power applications. It’s a reliable capacitor with a long life and is suitable for a wide range of temperatures and frequencies. It can help reduce noise from power supplies, provide decoupling in switching power supplies, and it’s small size makes it ideal for use in portable devices.