381LX821M180K032

Polarization:	Polar
Package / Case:	Radial, Can - Snap-In
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	1.457" (37.00mm)
Size / Dimension:	1.181" Dia (30.00mm)
Lead Spacing:	0.394" (10.00mm)
Ripple Current @ High Frequency:	2.8A @ 20kHz
Ripple Current @ Low Frequency:	2A @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	381LX
Operating Temperature:	-40°C ~ 105°C
Lifetime @ Temp.:	3000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	180V
Tolerance:	±20%
Capacitance:	820µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction to Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are one of the most commonly used types of capacitors today. These capacitors are typically constructed from a metalized plastic film housing which is filled with an electrolytic electrolyte solution containing metallic aluminum. This type of capacitor is often used in power supplies, motor drives, DC-DC converters, and other electrical circuit applications that require a cost-efficient, reliable, and long lasting storage of electrical energy.

Working Principle of Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors work by using the oxidization of aluminum to form a thin oxide layer on the surface of the aluminum plates in the capacitor. This thin layer of oxide acts as a dielectric material, helping to block the flow of electricity. When a voltage is applied in a capacitor, the capacitance increases, reducing the resistance and creating a voltage drop across the capacitor’s plates, causing a current to flow. This current forms an electrical field, causing ions to be attracted to the plates. The ions then accumulate on the plates, changing the capacitance, and further reducing the resistance.

Applications of Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are commonly used in a variety of different applications. These applications range from use in power supplies, motor drives, and DC-DC converters. In these applications, aluminum electrolytic capacitors are used for several functions such as energy storage, filtering, and decoupling. For example, in power supplies, aluminum electrolytic capacitors are used to store electrical energy for motor drives, lighting, or other power needs. In motor drives, the capacitors can provide energy storage, help to reduce electrical noise, and help to decouple the power supply from the motor.In DC-DC converters, aluminum electrolytic capacitors are used as an additional energy storage device for providing peak currents during high load operation. The capacitor helps to reduce electrical noise from the power input of the converter, providing a more reliable output and improved system performance.The model of aluminum electrolytic capacitor represented by 381LX821M180K032 is a particularly common type used in a variety of applications, from high voltage to low leakage applications. It is a polarized capacitor, which means it must be placed in the proper orientation in order for it to work properly. It is a surface mount, so it is especially useful in space saving applications. It also has a large capacitance of 180µF, which makes it ideal for use in audio systems and other applications requiring a large amount of energy storage.

Conclusion

Aluminum electrolytic capacitors are a reliable and cost-effective energy storage component commonly used in a variety of electrical circuit applications. The 381LX821M180K032 aluminum electrolytic capacitor is a particularly useful component due to its large capacitance and its surface mount design, making it ideal for space saving applications.

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