B43740A9109M007

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Aluminum electrolytic capacitors are a type of capacitor with variable capacitance, primarily composed of two aluminum-laminated flat plates (anode and cathode), which are immersed in an electrolyte solution. The B43740A9109M007 is a sample of an aluminum electrolytic capacitor from EPCOS, offering a very broad range of capacitance and rated voltage. This capacitor has a capacitance range of 1.0 to 220, and a rated voltage range of 4 to 50 volts.

Applications of the B43740A9109M007

The B43740A9109M007 is most suited to applications in high frequency circuits, and in particular AC ripple filtering circuits, and for smoothing in various voltage regulators and power supplies in variators and frequencies converters. Its small size and low parasitics make it suitable for applications in ultra-compact equipment.

The lamp-lighting applications that require very low ESR, such as LED supplies, are particularly well suited to the B43740A9109M007. In addition, it is an excellent choice for industrial systems, especially where a long lifetime is expected with a high temperature rise.

Working Principle of the B43740A9109M007

The B43740A9109M007 works based on the principle of electrical capacitance. A capacitor consists of two electrical conductors separated by an insulating material, which creates a region of stored electrical energy during charging. When a charge is applied to one of the conductors, electric fields form, attracting electrons to the conductive surfaces. This creates an excess of electrons in the conductive material underneath the charge, and a positive charge for the insulating medium. This charge is stored between the two conductors, creating a capacitance.

The B43740A9109M007 consists of two aluminum-etched foil sheets to create its terminals, and the electrolyte solution serves as the dielectric material. The foil plates are connected by special leadframe technology with very low equivalent series resistance (ESR), designed to ensure extremely low ESR values of the B43740A9109M007 capacitor at any given temperature over its entire lifetime.

Conclusion

The B43740A9109M007 is an aluminum electrolytic capacitor from EPCOS, with a capacitance range of 1.0 to 220, and a rated voltage range of 4 to 50 volts. It is most suited to applications in high frequency circuits, and in particular AC ripple filtering circuits, and for smoothing in various voltage regulators and power supplies in variators and frequencies converters. Its small size and low parasitics make it suitable for applications in ultra-compact equipment. In addition, it is an excellent choice for industrial systems, especially where a long lifetime is expected with a high temperature rise.

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