420USG330MEFC30X35

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:	3.038A @ 10kHz
Ripple Current @ Low Frequency:	2.17A @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	USG
Operating Temperature:	-25°C ~ 85°C
Lifetime @ Temp.:	3000 Hrs @ 85°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	420V
Tolerance:	±20%
Capacitance:	330µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Aluminum Electrolytic Capacitors An aluminum electrolytic capacitor, also known as an electrolytic capacitor, is an electronic component made up of two aluminum plates, separated by a dielectric material called an electrolyte. This dielectric material acts as an insulating medium between the two metal surfaces, allowing for the storage of energy in the form of electrical charge. The plates are typically made of aluminum and the electrolyte is often an oxide. The 420USG330MEFC30X35 application field of aluminum electrolytic capacitors is wide and varied. They are commonly used in the power supplies of electrical and electronic devices, as well as communications equipment and computer peripherals. They are also used in some automotive and aircraft applications, as well as consumer products, such as microwaves, stereos, and televisions. They are also used to filter and shape pulse signals, and to smooth out sawtooth waveforms. When it comes to the working principle of aluminum electrolytic capacitors, they are quite straightforward. In essence, one of the aluminum plates collects charge while the other discharges it. When a voltage is applied to the two plates, the combination of the two creates an electric field that causes electrons to flow from one plate to the other. This process of charge collection and transfer continues until the voltage is removed, at which point the capacitor is equalized, meaning the same amount of charge is on both plates. When voltage is applied to the two plates, there are two processes at work that are responsible for the capacitor’s performance. The first is dielectric polarization; this occurs when the oxide electrolyte and the aluminum plates develop an electric field between them, which causes electrons to migrate across the oxide layer and create a charge separation. The other process is called reorientation, which is responsible for the displacement of the charge within the electrolyte. The combination of these two processes has a major impact on the performance characteristics of an aluminum electrolytic capacitor. For example, if the amount of reorientation is greater than the amount of dielectric polarization, then the capacitance will be higher, and the current leakage of the capacitor will be lower. On the other hand, if the amount of polarization is greater than the amount of reorientation, then the capacitance will be lower, and the current leakage of the capacitor will be higher. The combination of these two processes gives aluminum electrolytic capacitors their many versatile applications. They can be used in high voltage applications, such as motor drives, circuit breaker, UPS systems and many consumer applications such as TV, radio, strobe lights and home audio systems. They can also be used in low voltage applications, such as telephone and computing circuits, and in specialty applications, such as medical electronics. In conclusion, aluminum electrolytic capacitors are versatile components with a wide range of applications. Their fundamental working principle is charge collection and transfer between two plates, caused by an electric field created between the two plates and the oxide dielectric layer. The combination of dielectric polarization and reorientation has a major impact on the performance characteristics of an aluminum electrolytic capacitor, and can be used to customize capacitors for different applications.

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