B43821F2107M000

Operating Temperature:	-40°C ~ 85°C
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	1.457" (37.00mm)
Size / Dimension:	0.709" Dia (18.00mm)
Lead Spacing:	0.295" (7.50mm)
Applications:	General Purpose
Ratings:	--
Polarization:	Polar
Series:	B43821
Lifetime @ Temp.:	3000 Hrs @ 85°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	250V
Tolerance:	±20%
Capacitance:	100µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are a type of electrolytic capacitor that uses aluminum oxides as the capacitor dielectric. These capacitors are able to store large amounts of energy in a small package and have a wide range of applications. The B43821F2107M000 is a specific type of aluminum electrolytic capacitor, and it is used in a variety of applications and for various purposes.

Application Field

The B43821F2107M000 is a high voltage aluminum electrolytic capacitor designed for power converter and controller applications. It is commonly found in applications such as DC-DC converters, switching power supplies, alternative energy, automotive, and consumer electronics. In portable applications, it is used to reduce EMI and reduce the size of the board. It is also used in motor drives, audio/video systems, and power supplies.

Working Principle

An aluminum electrolytic capacitor is composed of two aluminum foil electrodes, an electrolyte, and a separator. During operation, when a voltage is applied, an electric field is generated, resulting in a charge separation and the formation of two electric dipoles in the oxide layer of the electrode. This dipole layer then acts as the capacitor\'s dielectric.The capacitance of an electrolytic capacitor is mainly determined by the thickness of the oxide film on the surface of the foil, the area of the foil, the type of electrolyte (liquid or solid), and the voltage applied. The B43821F2107M000 is rated at 6.3V to 400V and features a capacitance range of 10µF to 1000µF.

Advantages

Aluminum electrolytic capacitors offer a number of advantages. Firstly, they have high capacitance-to-volume and capacitance-to-weight ratios. This makes them an ideal choice for applications where size and weight are important factors. Secondly, they offer high ripple current capability and low internal resistance, allowing for high power density and improved efficiency. Additionally, they are cost-effective and have a wide temperature range, making them suitable for a variety of applications.

Disadvantages

Aluminum electrolytic capacitors also have some drawbacks. Firstly, they have a low temperature coefficient, which means their capacitance decreases rapidly with increasing temperature. This can limit their use in high temperature environments. Secondly, they are subject to electrolytic corrosion, which reduces their lifetime and reliability. Additionally, their high internal resistance can decrease their efficacy in high frequency applications.The B43821F2107M000 aluminum electrolytic capacitor offers the advantages of high capacitance, size and weight, low cost, and reliability. However, designers need to be aware of the disadvantages of this type of capacitor, as well as the changes that temperature can have on its performance.

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