420HXG220MEFC25X40

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:	0.984" Dia (25.00mm)
Lead Spacing:	0.394" (10.00mm)
Ripple Current @ High Frequency:	2.758A @ 10kHz
Ripple Current @ Low Frequency:	1.97A @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	HXG
Operating Temperature:	-25°C ~ 105°C
Lifetime @ Temp.:	3000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	420V
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 belong to the family of electrolytic capacitors. They are polarized and have an incredibly high capacitance for their size. They are used in a wide variety of applications, ranging from audio equipment to computer motherboards to power supplies.The 420HXG220MEFC25X40 model is an aluminum electrolytic capacitor developed by SGS Thomson Microelectronics. This particular capacitor is a radial lead, screw terminal type and is rated for 2.2µF (220000µF) at 25V. It is about 40mm in diameter and 20mm in height. This is an axial lead version of the 420HXG220MEFC25X40. The primary components of an aluminum electrolytic capacitor are the anode and the cathode. The anode is a very thin aluminum foil which is usually etched or formed into a shape to increase surface area and thus increase capacitance. This foil is then rolled into a cylinder and etched to allow the liquid electrolyte to penetrate and form electrical connections between the anode and cathode. The cathode is usually a metal, usually aluminum, material that is designed to hold the liquid electrolyte, which is usually an acidic solution.The working principle of aluminum electrolytic capacitors is based on the fact that when a voltage is applied to the capacitor, current will flow from the anode to the cathode. Since the anode and cathode are connected by a liquid electrolyte, the electrical current will cause a liquid reaction between the electrolyte and the anode, resulting in the production of oxygen gas and ions. This reaction causes the capacitor to store energy and develops a dielectric, or insulation, between the anode and the cathode which causes the capacitor to charge and discharge.Because of their high capacitance and their small size, aluminum electrolytic capacitors are commonly used in a variety of applications. They are most common as the main capacitor in an audio power amplifier, as the main filter capacitor in power supplies, and in automotive applications, such as as start/stop systems. Another application in which aluminum electrolytic capacitors are commonly used is decoupling. Decoupling capacitors are typically placed near an integrated circuit or a piece of active electronic components to suppress noise and provide voltage filtering. This type of capacitor can also be used in switching power supplies to reduce the switching noise.Aluminum electrolytic capacitors are also used to provide timing for a device\'s speed of operation. They can be used as timing elements in mobile phones, computer motherboards, and other electronic devices. They are also commonly used in phase-locked loop (PLL) circuits used to control oscillators and frequencies.Aluminum electrolytic capacitors have become a popular choice for many different applications due to their high capacitance, reliability, and small size. They are used in a variety of different applications, from audio equipment to computer motherboards to power supplies. With their ability to store large amounts of energy in a small size, aluminum electrolytic capacitors are a cost-effective and reliable solution for many different projects.

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