ELXM451VSN221MR40S

Polarization:	Polar
Package / Case:	Radial, Can - Snap-In
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	1.654" (42.00mm)
Size / Dimension:	1.181" Dia (30.00mm)
Lead Spacing:	0.394" (10.00mm)
Ripple Current @ High Frequency:	1.716A @ 50kHz
Ripple Current @ Low Frequency:	1.2A @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	LXM
Operating Temperature:	-25°C ~ 105°C
Lifetime @ Temp.:	7000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	450V
Tolerance:	±20%
Capacitance:	220µF
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 capacitor that utilizes an electrolyte, usually an acidic solution, encased by two aluminum foils. These capacitors can hold an electrical charge ranging from a fraction of a Farad to thousands of Farad. Because of their comparable low cost, flexibility, and high capacitance, aluminum electrolytic capacitors are widely used in a variety of electronic projects, ranging from guitar amplifiers to inverters. These capacitors are often found in consumer products such as computers, stereos, and medical devices.

The ELXM451VSN221MR40S is an aluminum electrolytic capacitor manufactured by Panasonic and is a typically used in medical applications. It has a capacitance of 450V, a capacitance tolerance of 10%, a dissipation factor (DF) of 0.2%, and an 11mm diameter. Additionally, ELXM451VSN221MR40S aluminum capacitors consist of a heavy duty aluminum foil and an oil impregnated paper dielectric wound construction which helps bring improved capacitance over temperature reliability. This type of capacitor is commonly found in medical applications due to its ability to withstand high ripple currents and its high dielectric strength.

In terms of working principle, the capacitance of the ELXM451VSN221MR40S aluminum electrolytic capacitor is a result of the polarization effect. When an anode of an oxide is placed near the positive plate in an acidic electrolyte, it attracts negative ions resulting in the opposite charge of the oxide layer and the formation of a double electric layer, known as the polarization layer. Due to this effect, a capacitance value is generated. This value is controlled by the thickness of the aluminum anode, the electrolyte, and the oxide layer. The construction of ELXM451VSN221MR40S aluminum electrolytic capacitors also aids in providing the capacitor with its impressive electrical characteristics. Such characteristics include low ESR, low DF, and high ripple current ratings. This is achieved by utilizing a specially formulated conductive electrolyte and a heavy duty aluminum foil. Furthermore, each of the layers separated by the electrolyte can be precisely adjusted to create a desired breakdown voltage or capacitance range with high accuracy.

Due to its extremely low levels of ESR and DF characteristics, the ELXM451VSN221MR40S is well suited for a wide range of medical applications. It is commonly used to suppress or reduce noise in medical equipment and can also be used to filtering and conditioning signals due to its high capacitance value. Moreover, because the ELXM451VSN221MR40S is a dry type capacitor, it exhibits very high stability. As a result, it is able to provide consistent operations even when exposed to extreme temperatures and environments.

In conclusion, the ELXM451VSN221MR40S aluminum electrolytic capacitor is a highly versatile and reliable component. It can easily withstand high ripple currents and provide excellent electrical characteristics. Additionally, its construction is designed to provide high capacitance performance over temperature, making it an ideal component for medical and other high performance equipment.

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