PSU37865A

Operating Temperature:	-40°C ~ 65°C
Package / Case:	Radial, Can - QC Terminals
Mounting Type:	Chassis Mount
Surface Mount Land Size:	--
Height - Seated (Max):	3.375" (85.73mm)
Size / Dimension:	1.813" Dia (46.05mm)
Lead Spacing:	--
Applications:	Motor Start
Ratings:	--
Polarization:	Bi-Polar
Series:	PSU
Lifetime @ Temp.:	--
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	165V
Tolerance:	-0%, +20%
Capacitance:	378µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors have become increasingly popular over the last decade due to their greater efficiency and higher power density than other types of capacitors. They also have a wide variety of uses, including power filtering, snubbing, and energy storage. The PSU37865A, specifically, is a small-sized aluminum electrolytic capacitor with impressive performance characteristics. This article explores the application fields and working principle of the PSU37865A.

Application Fields of the PSU37865A

The PSU37865A has numerous applications, from filters and snubbers in power supplies to passive components for consumer products. It is also used in radiating antennas, bypassing filters, and energy storage capacitors. In addition, the PSU37865A is also used in precision power circuitry, motor speed controllers, power conditioning and home theater products.

The Working Principle of the PSU37865A

The PSU37865A is based on an aluminum electrolytic capacitor design, which relies on an electrolyte to provide the dielectric. This design increases the electric field inside the capacitor and therefore increases the capacitance. The electrolyte also prevents breakdown of the dielectric and enhances the capacitance. As electrons travel through the capacitor, the electrolyte provides a medium that reduces the current and stores energy.The PSU37865A also has a special construction that increases its performance and reliability. Specifically, the anode is constructed from solid aluminum plates while the cathode is formed of plates that are treated with a special polymer. This combination allows for high charge and discharge power, as well as a higher temperature stability than other aluminum electrolytic capacitors. When the PSU37865A is used, its operation occurs as the capacitor is charged and discharged by an external power source. When the external power source is connected to the capacitor, electrons flow from the anode to the cathode and generate a current that charges the capacitor. As the capacitor charges, the electrons draw energy from the charge, which is stored in the capacitor. When the connection to the external power source is broken, the capacitor discharges, releasing the stored energy.

Conclusion

The PSU37865A is an aluminum electrolytic capacitor that is popular for its high power density, efficiency, and reliability. It has numerous applications, including power filters, snubbers, and energy storage, as well as for radiating antennas, bypassing filters, and precision power circuitry. The PSU37865A works on a principle of charging and discharging electrons from the anode to the cathode, where the energy is stored in the capacitor. This article has provided an overview of the application fields and working principle of the PSU37865A.

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