URU1E222MRD

Series:	URU
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Capacitance:	2200µF
Tolerance:	±20%
Voltage - Rated:	25V
ESR (Equivalent Series Resistance):	--
Lifetime @ Temp.:	2000 Hrs @ 85°C
Operating Temperature:	-40°C ~ 85°C
Polarization:	--
Ratings:	--
Applications:	General Purpose
Ripple Current @ Low Frequency:	1.38A @ 120Hz
Ripple Current @ High Frequency:	1.587A @ 10kHz
Lead Spacing:	0.492" (12.50mm)
Size / Dimension:	0.984" Dia (25.00mm)
Height - Seated (Max):	0.571" (14.50mm)
Surface Mount Land Size:	--
Mounting Type:	Through Hole
Package / Case:	Radial, Can

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Aluminum Electrolytic CapacitorsAluminum electrolytic capacitors are a type of capacitor that uses a thin aluminum oxide film on its electrodes as the dielectric for storing electrical charge. Due to their relatively high capacitance, they are one of the most common types of capacitors available today. URE1E222MRD capacitors are a type of aluminum electrolytic capacitor designed for power conditioning applications.ConstructionAn aluminum electrolytic capacitor consists of a capacitor element headed by a metal cathode substrate, generally an aluminum foil, which then has an extremely thin layer of aluminum oxide passivated onto it or formed by natural processes. This insulating oxide layer acts as the dielectric of the capacitor, and typically has a very high insulating capability, allowing it to store a large amount of charge relative to its size.The anode of the capacitor consists of a thin film of metal foil, typically the same aluminum foil as the cathode, which is then wound up around the anode as a spiral. As with the cathode, the anode is passivated to protect it from corrosion. Lead wires are used to connect the anode and cathode to the external circuit.URE1E222MRD ApplicationsThe URE1E222MRD is a specialty aluminum electrolytic capacitor designed and manufactured for power conditioning applications. It has a rated capacitance of 2200uF and can handle an operating voltage of up to 50V. The capacitor is specifically designed for use in regulator, inverter, converter and switching power applications, as it has low impedance characteristics and a high ripple current rating.It also has a large case size for improved cooling, meaning that it is able to handle high ripple current without compromising performance. The terminals are designed for a maximum wire size of 22 AWG, and the capacitor is RoHS compliant.Working PrincipleLike all capacitors, the URE1E222MRD functions by storing electrical energy as an electrical charge in an electric field. In the case of an aluminum electrolytic capacitor, the electric field is formed between the anode and cathode.When a voltage is applied across the capacitor, an electric field builds up between the anode and cathode, allowing charges to flow through the dielectric layer. These charges accumulate and build up an electrical charge inside the capacitor until the electric potential across the anode and cathode has the same value as the voltage applied across the capacitor terminals.This process is reversed when the voltage is removed, as the reverse electric field now pushes the electric charge out of the capacitor, preventing it from deteriorating due to self-discharge. This process also helps to reduce ESR (Equivalent Series Resistance) and improve the capacitor reliability.ConclusionThe URE1E222MRD is a type of aluminum electrolytic capacitor specifically designed for power conditioning applications. This capacitor has a large capacitance and can handle an operating voltage of up to 50V. It has low impedance characteristics and a high ripple current rating, as well as a large case for improved heat dissipation. The capacitor works by storing electrical energy as an electric field between the anode and cathode, and its performance is also improved by the reverse electric field which helps to prevent self-discharge.

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