UPJ1V181MPD6TD Capacitors

Polarization:	Polar
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	0.650" (16.50mm)
Size / Dimension:	0.394" Dia (10.00mm)
Lead Spacing:	0.197" (5.00mm)
Impedance:	180 mOhms
Ripple Current @ High Frequency:	700mA @ 10kHz
Ripple Current @ Low Frequency:	500mA @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	UPJ
Operating Temperature:	-55°C ~ 105°C
Lifetime @ Temp.:	5000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	35V
Tolerance:	±20%
Capacitance:	180µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Box (TB)

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Overview

Aluminum electrolytic capacitors, abbreviated as AECs, are electronic components mainly used to store electrical energy and to filter out noise. They are made up of a thin aluminum foil, a porous dielectric layer and an electrolyte, and are one of the most commonly used types of capacitors. The UPJ1V181MPD6TD is a specific type of AEC, and it is mainly used in applications like signal filtering and power supply.

Specifications and Construction

The UPJ1V181MPD6TD aluminum electrolytic capacitors are two-terminal devices which consist of two aluminum foils, a separator and electrolyte. The aluminum foil serves as the electrodes and it is surrounded by an electrolyte – usually a liquid or an activated solid. The separator keeps the two electrodes apart and at the same time isolates them from the electrolyte.The UPJ1V181MPD6TD aluminum electrolytic capacitors belong to the snap-in type and have a capacitance value of 18uF with a tolerance of 10% and a rated voltage of 350V. These components have a wide temperature range of -55°C to +105°C, and a terminal lead spacing of 5.08mm.

Working Principle

The basic working principle of AECs is based on the electrolytic conduction between two aluminum foils. When a DC voltage is applied, an electron current flows between the two electrodes and a layer of aluminum oxide is formed on the outer surface of the positive electrode. This layer acts as both an insulator and an electrolyte and it has a much higher dielectric constant compared to the original electrolyte. Thus, a higher capacitance value is achieved. In the case of the UPJ1V181MPD6TD aluminum electrolytic capacitors, the two aluminum foils are polarized and prevented from shorting out by the separator. They are charged using a low voltage constant current source and then the DC voltage is applied across the two electrodes. The capacitors can then store the electrical energy from the voltage source.

Applications

Due to their relatively large capacitance values, AECs are widely used in a variety of electrical and electronic applications. The UPJ1V181MPD6TD aluminum electrolytic capacitors are mainly used for signal filtering and power supply, as their high capacitance values allow for effective noise reduction. They are also used in power conditioning, such as in the case of removing the ripple from a switching power supply.In addition, AECs are also used in voltage regulation, as they are able to absorb energy and release it at a steady rate. They are commonly used in battery charging and discharging applications such as UPS systems, and can also be used in automotive electronics and solar power systems.

Conclusion

The UPJ1V181MPD6TD aluminum electrolytic capacitor is an electronic component used to store electrical energy and to filter out noise. It is a reliable and cost-effective way of achieving good signal filtering and power supply performance. It is also widely used in a variety of other applications like voltage regulation and battery charging/discharging.

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