Polarization:	Bi-Polar
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	0.236" (6.00mm)
Size / Dimension:	0.197" Dia (5.00mm)
Lead Spacing:	0.079" (2.00mm)
Ripple Current @ High Frequency:	24mA @ 10kHz
Ripple Current @ Low Frequency:	16mA @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	UMP
Operating Temperature:	-40°C ~ 85°C
Lifetime @ Temp.:	2000 Hrs @ 85°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	25V
Tolerance:	±20%
Capacitance:	4.7µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Aluminum Electrolytic Capacitors

UMP1E4R7MDD Application Field and Working Principle

Aluminum electrolytic capacitors are some of the most important components used in electrical and electronic applications. Very low power losses and high reliability make them essential components in technology and electronic devices.UMP1E4R7MDD is one of the newest series of aluminum electrolytic capacitors. These capacitors are ideal for use in a variety of applications due to their low ESR and ESL characteristics. This series of capacitors is particularly advantageous in applications requiring high frequency modulation and high ripple current. The following sections explain the application fields and working principle of UMP1E4R7MDD aluminum electrolytic capacitors.

Application Fields

UMP1E4R7MDD aluminum electrolytic capacitors are ideal for several applications. These include power supply systems, medical equipment, telecommunication equipment, automotive electronics, and industrial electronics. These capacitors are also used in LED drivers, DC/DC converters, and LCD monitors.In power supply systems such as wall mount power supplies, UPS, and AC-DC converter boards, UMP1E4R7MDD aluminum electrolytic capacitors can be used to increase the efficiency and reliability. These capacitors can also reduce the noise in these systems since they can handle higher ripple currents.UMP1E4R7MDD capacitors can prevent over-voltage and over-current conditions in medical equipment. They are also suitable for telecommunication equipment due to their low ESR and ESL characteristics. In automotive electronics, these capacitors help to increase the durability of vehicles and reduce system noise. They are also used in industrial electronics such as PLCs and DC servo motors to reduce system noise and improve system reliability.

Working Principle

An aluminum electrolytic capacitor is made up of two pieces of aluminum foil which are separated by an electrolyte. The aluminum foil acts as the electrodes while the electrolyte acts as the dielectric. One of the aluminum foils is covered with an oxidation-resistant film which acts as the cathode. The other foil, which acts as the anode, is not covered with a film.When current flows across the capacitor, a charge migration occurs and the electric field of the anode foils attracts ions from the electrolyte. The ions accumulate around the anode foil, forming a negative charged layer close to the foil. This layer increases the thickness of the dielectric layer and increases the capacitance of the capacitor.When the current stops flowing, the capacitance of the capacitor decreases as the ions move away from the anode foil and the dielectric layer returns to its original thickness. This is the main working principle of aluminium electrolytic capacitors.

Conclusion

UMP1E4R7MDD aluminum electrolytic capacitors are ideal for use in a variety of applications due to their low ESR and ESL characteristics. The capacitors are especially advantageous in applications requiring high frequency modulation and high ripple current. These capacitors can be used in power supplies, medical equipment, communication equipment, automotive electronics, and industrial electronics. The working principle of UMP1E4R7MDD aluminum electrolytic capacitors is based on charge migration and the accumulation of ions around the anode foil.

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