UHW1K221MPD1TD Capacitors

Polarization:	Polar
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	1.063" (27.00mm)
Size / Dimension:	0.394" Dia (10.00mm)
Lead Spacing:	0.197" (5.00mm)
Impedance:	72 mOhms
Ripple Current @ High Frequency:	1.62A @ 100kHz
Ripple Current @ Low Frequency:	810mA @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	UHW
Operating Temperature:	-40°C ~ 105°C
Lifetime @ Temp.:	10000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	80V
Tolerance:	±20%
Capacitance:	220µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Box (TB)

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Aluminum electrolytic capacitors, sometimes referred to as wet electrolytic capacitors, are capacitors that use an electrolyte, usually aqueous, as the dielectric (or insulating medium). They are characterized by having a very high capacitance per unit of volume compared to standard capacitors, with values ranging from 1μF to thousands of μF with a working voltage of up to several hundred volts.UHW1K221MPD1TD is an aluminum electrolytic capacitor typically employed for low voltage, low current applications with moderate ripple current requirements. As such, they can be used in a wide variety of applications including switching power supplies, motor controls, and system-level voltage stabilization. The UHW1K221MPD1TD aluminum electrolytic capacitor features a metalized organic film dielectric, which gives the device excellent low ESR and long life.The working principle of aluminum electrolytic capacitors is based on the Faraday Law of Electrolysis. This law states that when a voltage is applied to an electrolyte, an electric current will flow through it, causing metal ions to deposit on the electrodes, thus forming an electric double layer (EDL). This EDL is the dielectric medium in the capacitor and it is what gives an electrolytic capacitor its high capacitance per unit volume compared to standard capacitors. Furthermore, the electrolyte itself forms part of the dielectric, making aluminum electrolytic capacitors ideal for high frequency and high temperature applications as the electrolyte is less sensitive to these parameters than other types of capacitors.The capacitance of aluminum electrolytic capacitors depends on several factors such as the dielectric constant of the electrolyte, the EDL thickness, and the surface area of the electrodes. Furthermore, the capacitance of the device is also temperature dependent, as the electrolyte viscosity and EDL thickness vary with temperature. Thus, choosing the right capacitor for the application is always important for a successful system design.The UHW1K221MPD1TD aluminum electrolytic capacitor is a snap-in type casing for through-hole mounting and is rated at 105°C at 25V, with a capacitance of 22μF and a maximum ripple current of 1A. This type of capacitor is able to operate in a wide range of frequencies, including high frequency, and is well suited for power supply applications. Furthermore, it is rated for a high ripple current, making it ideal for applications with large amounts of noise or dynamic voltage stabilizing systems.In summary, the UHW1K221MPD1TD aluminum electrolytic capacitor is a versatile device suitable for a wide range of applications, from low voltage, low current to large ripple current systems with moderate frequency. The faraday law based technology ensures high capacitance per unit volume and excellent temperature stability, as well as high frequency operations. The snap-in casing makes for easy through-hole mounting while the integrated terminals provide high connection reliability.

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