B41821A4157M

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Aluminum electrolytic capacitors are a type of electrolytic capacitor that use a thin aluminum oxide layer as the dielectriciz material. The dielectric layer is formed by an electrochemical reaction when the capacitor is first placed into the circuit. This reaction forms a thin, highly polarized insulating layer on the aluminum or tantalum anode surface that functions as the dielectric of the capacitor. Aluminum electrolytic capacitors have a wide range of applications because of their low cost, high capacitance per unit volume, long life, and reliability.

B41821A4157M is an aluminum electrolytic capacitor. It belongs to snap-in type with standard lead spacing 5mm and 100V rated voltage. It is an excellent choice in power supplies, DC-DC converters, industrial base electrical equipment, starting motors, AC and DC motor drives, and consumer electronics.

Aluminum electrolytic capacitors are passive components, and the way they work is by connecting two electrical conductors separated by an insulating dielectric material. A voltage source is applied to one of the conductors, which in turn causes a charge to accumulate on the conductors. As a result of this accumulated charge, an electric field is created that stores energy between the two conductors in the form of an electrostatic field. This stored energy can be used later when the voltage source is disconnected.

The B41821A4157M capacitor features long life and stability, high conductivity, and high-current handling capability in power electronics applications. It is a polarized capacitor and the polarity of connections must be observed carefully. The B41821A4157M has a high thermal stability and operates over an extended temperature range, from -40°C to +105°C. It is suitable for both surface mount and through-hole applications.

The working principle of B41821A4157M capacitor can be described as follows. When the capacitor is operating, the dielectric oxide layer on the aluminum surface acts as a barrier between the two electrodes. When a voltage is applied across the capacitor, electrons are drawn from one side and repelled on the other. This creates an accumulation of charge at each electrode. As electrons accumulate at each electrode, the electric field between them increases, which then stores energy in the form of electrostatic field.

When the voltage is removed, the electrostatic field collapses and energy stored in the field is released. This energy is then used to drive current through the capacitor in the opposite direction of the applied voltage, and the capacitor is discharged. This process occurs in each cycle and thus the B41821A4157M capacitor can act as a filter to pass AC signals while blocking DC signals.

The B41821A4157M is an excellent choice for power applications. It has long life, stability, and wide temperature range that makes it suitable for applications in harsh environments. Besides, its high current handling capability makes it suitable for high-current applications such as motor drives, power supplies, and DC-DC converters.

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