DCM403U040BC2A

Polarization:	Polar
Package / Case:	Radial, Can - Screw Terminals
Mounting Type:	Chassis Mount
Surface Mount Land Size:	--
Height - Seated (Max):	4.187" (106.35mm)
Size / Dimension:	2.000" Dia (50.80mm)
Lead Spacing:	0.875" (22.23mm)
Applications:	General Purpose
Ratings:	--
Series:	DCM
Operating Temperature:	-40°C ~ 85°C
Lifetime @ Temp.:	2000 Hrs @ 85°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	40V
Tolerance:	-10%, +75%
Capacitance:	40000µF
Part Status:	Active
Packaging:	Bulk

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Aluminum Electrolytic CapacitorsAluminum electrolytic capacitors, or just electrolytic capacitors, are widely used in modern electronics for a variety of purposes. They are versatile devices that have found a multitude of applications in the industry, ranging from hobbyists building simple circuits to engineers designing complex systems. Aluminum electrolytic capacitors are often described as cylindrical aluminum cans, due to their common shape. Inside each capacitor is a pair of metal plates that are separated by an electrolyte liquid and a separator. The DCM403U040BC2A aluminum electrolytic capacitor is a high quality axial-lead capacitor designed for use as both an energy storage and an input/output filter device. It features excellent capacitance to size and voltage ratings, as well as low equivalent series resistance (ESR). It is able to operate over a temperature range of -40°C to +105°C, making it suitable for use in demanding applications.DCM403U040BC2A ApplicationsThe DCM403U040BC2A aluminum electrolytic capacitor is a valuable capacitor in many different applications due to its superior attrition rate, cost efficiency and excellent long term stability. It is a great choice for both high frequency filtering and energy storage purposes, as well as being an ideal choice for more general filter designs.Some of the more common application areas in which the DCM403U040BC2A aluminum electrolytic capacitor can be found include low frequency noise filtering, power supply bulk filtering and charge/discharge energy storage circuits. It is also commonly used in switching power supply bulk capacitance circuitry, EMI filters and more.Working PrincipleThe working principle of the DCM403U040BC2A aluminum electrolytic capacitor is simple and effective. The electrical energy from the power supply is stored in the capacitor in the form of an electric field between the two metal plates. As electrons flow in and out of the plates to maintain the electric field, the capacitor essentially acts as an energy storage device.When alternating current is applied to the capacitor, the current will switch between the two plates, forming a current waveform as the electric field between the two plates is circulated. This process is what enables electrolytic capacitors to act as both input/output filter devices and energy storage devices.Conclusion The DCM403U040BC2A aluminum electrolytic capacitor is a high-quality, highly-versatile device with many different uses. Its high capacitance, low ESR and temperature range make it suitable for a variety of applications, including noise filtering, power supply bulk filtering and charge/discharge energy storage circuits. The working principle is simple and effective, with the capacitor storing energy as an electric field stored between two metal plates, and allowing alternating current to flow through the system, creating a current waveform.

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