400TXW22MEFR18X45

Polarization:	Polar
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	1.870" (47.50mm)
Size / Dimension:	0.709" Dia (18.00mm)
Lead Spacing:	0.295" (7.50mm)
Applications:	General Purpose
Ratings:	--
Series:	TXW
Operating Temperature:	-40°C ~ 105°C
Lifetime @ Temp.:	12000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	400V
Tolerance:	±20%
Capacitance:	22µF
Lead Free Status / RoHS Status:	--
Part Status:	Active

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Aluminum Electrolytic Capacitors commonly are constructed of a solid aluminum anode with a spongy or etched aluminum oxide layer as the dielectric. The surface area of the anode is increased chemically or mechanically thereby increasing capacitance per unit volume. The anode and dielectric are then rolled into a cylinder with a wetted paper dielectric layer between. A liquid electrolyte is added and the whole cylinder is then sealed in an aluminum or other metal can or plastic case and a second can or plastic case is added to hold in the electrolyte. The aluminum electrolytic capacitors are among the most common types of capacitors used in electronics today and can be found in virtually any consumer electronic device.The 400TXW22MEFR18X45 is an aluminum electrolytic capacitor specifically designed for high-temperature applications. This series of capacitors is constructed with a black aluminum or electroplated black anode and an extremely durable anode oxide layer. The anode is then tightly rolled with its dielectric in an epoxy resin sleeve to create a single unit capable of withstanding a wide range of environmental and operational stresses. Due to its construction, the 400TXW22MEFR18X45 series is ideal for applications where excellent thermal stability and high-temperature operation are necessary, such as motors, welding systems, and power electronics.The 400TXW22MEFR18X45 capacitor works like any other capacitor, storing a charge on its plates and discharging it when the circuit is completed. Capacitors mainly act as filters to move current from one point to another, however, aluminum electrolytic capacitors also offer an additional feature - the ability to store energy in their separate anode and cathode layers. This is accomplished through an ionic exchange process whereby electrons on the anode side of the capacitor are exchanged with anions on the cathode side of the capacitor. When voltage is applied to the capacitor, the atoms in the anode and the cathode attract each other, thus allowing for increased capacitance.When working with 400TXW22MEFR18X45 capacitors it is important to remember a few key aspects of operation. First, the aforementioned ionic exchange process is an inherently inefficient process and a proportion of energy is lost in the process. Second, the 400TXW22MEFR18X45\'s construction is designed for high-temperature operation and the capacitor may become damaged if it is kept at a temperature higher than its rated level for an extended period of time. Lastly, the black aluminum construction of the 400TXW22MEFR18X45 capacitors makes them vulnerable to electrostatic discharge which can render the capacitors partially or completely useless.In conclusion, the 400TXW22MEFR18X45 aluminum electrolytic capacitors provide a cost-effective solution for high-temperature operation in applications such as motors, welding and power electronics. Although these capacitors offer high levels of capacitance and thermal stability, they are also vulnerable to electrostatic discharge and can suffer a substantial efficiency loss in the ion exchange process. Care must be taken to ensure that the 400TXW22MEFR18X45 is not over-stressed by temperature or voltage beyond its rated limit.

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