SMQ400VS821M35X45T2

Polarization:	Polar
Package / Case:	Radial, Can - Snap-In
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	1.772" (45.00mm)
Size / Dimension:	1.378" Dia (35.00mm)
Lead Spacing:	0.394" (10.00mm)
Ripple Current @ High Frequency:	4.6758A @ 50kHz
Ripple Current @ Low Frequency:	3.25A @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	SMQ
Operating Temperature:	-25°C ~ 85°C
Lifetime @ Temp.:	2000 Hrs @ 85°C
ESR (Equivalent Series Resistance):	303 mOhm @ 120Hz
Voltage - Rated:	400V
Tolerance:	±20%
Capacitance:	820µF
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Tray

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Aluminum Electrolytic CapacitorsAluminum electrolytic capacitors consist of a solid anode and a cylindrical cathode wound in an electrolytic material. The anode and cathode are electrically separated by the dielectric material. These capacitors are widely used due to their bulk capacitance in a small package, low price, and high electrical charge. In most cases, they are polarized (asymmetric construction) and require installation in the proper orientation. The SMQ400VS821M35X45T2 is a type of aluminum electrolytic capacitor that is widely used in the projector market. These capacitors are designed to provide both high voltage and high capacitance in a small package. Specifically, it is rated for 400V with a capacitance rating of 821mF. It features a cylindrical tin-plated case with a rated diameter of 35mm and a rated height of 45mm. ApplicationsThe SMQ400VS821M35X45T2 is widely used in the projector market, as it is designed to provide reliable high voltage and capacitance in a small package. This makes it ideal for large-scale projection systems, where large capacitors are needed but space is limited. Additionally, it is also suitable for many other applications that require high voltage and capacitance in a small package. In the automotive industry, this capacitor is also commonly used in audio systems. It is used in the power supply of the audio amplifier, providing the necessary voltage and capacitance for smooth audio reproduction. In addition, it is also commonly used in other automotive applications, such as in alternators, windshield washers, and power-assisted steering systems. In the computing industry, the SMQ400VS821M35X45T2 is commonly used in various PC-related components, such as motherboards, graphic cards, power supplies, and drives. It is also used in the production of high-end consumer electronics, such as digital video recorders, HD TVs, and gaming consoles. Working PrincipleThe SMQ400VS821M35X45T2 is a polarized capacitor, meaning that it has asymmetric construction. This allows it to store charge, and it does this by separating the anode and cathode with a dielectric material. The dielectric material is typically an electrolyte, and when the capacitor is charged, an electric field forms between the anode and cathode. This electric field increases the intensity of the charges stored in the capacitor, resulting in an increase in capacitance. When the capacitor is discharged, the electric field dissipates, resulting in a decrease in capacitance. This decrease in capacitance is reversed when the capacitor is recharged. This cycle can be repeated indefinitely, as long as the capacitor is not overcharged. ConclusionThe SMQ400VS821M35X45T2 is a type of aluminum electrolytic capacitor designed to supply both high voltage and capacitance in a small package. It is commonly used in the projector market and in various automotive and computing applications. The working principle behind this type of capacitor is based on the principle of polarization, where two electrodes are separated by a dielectric material and an electric field is formed between them. This electric field increases the intensity of the charges stored in the capacitor, leading to an increase in capacitance.

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