B41042A826M

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Aluminum electrolytic capacitors are a type of capacitor that uses an electrolyte-soaked aluminum foil as one or both of its electrodes. It is made from an aluminum foil and is generally used to filter and smooth out power supply, and is also used for coupling and decoupling of signals. The B41042A826M is a radial leaded aluminum electrolytic capacitor with large capacitance and voltage rating.

Application Field

The B41042A826M has a capacitance rating of 820 µF – a fairly large rating for an aluminum electrolytic capacitor – and a voltage rating of 16 V, and is suitable for a wide range of DC applications. It is especially suitable for any DC filtering and smoothing application, although it can also be used for coupling of signals for specific needs.

Being a radial leaded type capacitor, it has the advantage of being easy to mount in an appropriate circuit. Within its voltage and capacitance limits, it can be used for filtering of ripple and other disturbances in power sources, ripple current limitation, and EMI/RFI filtering. It can also be used for buffering and energy storage in low power DC circuits.

Working Principle

Aluminum electrolytic capacitors like the B41042A826M capacitor work by use of an electrolyte, usually an acidic solution such as a suspension of particles in an organic solvent or in an aqueous solution. In the case of the B41042A826M, the electrolyte is the suspension of particles in an organic solvent. This electrochemical suspension provides high capacitance – up to several hundred µF in a single device.

The electrolyte is soaked into the anode, which is usually an aluminum foil, and the cathode is usually a special material designed to resist corrosion and provide charge redistribution. The electrolyte in contact with the anode forms a thin film-like layer of oxide, and this oxide layer provides the insulation between the two electrodes, thus creating a (dielectric) capacitance.

The electrolyte is the key component of the aluminum electrolytic capacitor, since it determines the performance of the capacitor. The electrolyte also affects the total capacitance of the device. For this reason, manufacturers may include additives or apply treatments to the electrolyte in order to enhance its properties. This can include dielectric strengthening or increased charge storage for higher capacitance.

Conclusion

The B41042A826M aluminum electrolytic capacitor is a robust radial leaded component with wide capacitance and voltage ratings, making it suitable for a wide range of DC filtering and smoothing applications. Its electrolyte allows it to provide good performance over a wide range of temperatures, and its compact size allows it to be easily incorporated into circuits for various uses. If you are looking for a reliable component to filter and smooth a range of DC signals, the B41042A826M may be the right choice for your application.

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