MAL250054272E3

Polarization:	Polar
Package / Case:	Radial, Can - Screw Terminals
Mounting Type:	Chassis Mount
Surface Mount Land Size:	--
Height - Seated (Max):	4.358" (110.70mm)
Size / Dimension:	2.559" Dia (65.00mm)
Lead Spacing:	1.122" (28.50mm)
Impedance:	31 mOhms
Ripple Current @ Low Frequency:	21.9A @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	500 PGP-ST
Operating Temperature:	-40°C ~ 85°C
Lifetime @ Temp.:	3000 Hrs @ 85°C
ESR (Equivalent Series Resistance):	42 mOhm @ 120Hz
Voltage - Rated:	420V
Tolerance:	±20%
Capacitance:	2700µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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IntroductionAluminum electrolytic capacitors are a type of polarized capacitor – the traditional tantalum electrolytic capacitors are the other. The most common type is the radial leaded aluminum electrolytic capacitor, which is easy to recognize due to its size and shape. This kind of capacitor has two plates facing each other, separated by a dielectric layer, with one side typically made of aluminum foil or aluminum oxide which is folded or rolled to allow a larger surface area. The other side is a thin film of metal oxide.Aluminum electrolytic capacitors, such as MAL250054272E3, are widely used in many electronic circuits due to their high capacitance and low ESR at a relatively low cost. A typical common application is as a bypass capacitor in power supply circuits, as well as coupling and decoupling capacitors in signal conditioning and RF circuits, and load capacitors in motor drives.Application and Working Principles of MAL250054272E3The MAL250054272E3 aluminum electrolytic capacitor is a high performance, general purpose aluminum electrolytic capacitor made by Nichicon. It has an operating temperature range of -40 to 105 degree Celsius, a rated voltage of 25 VDC and a capacitance of 4700uF. It features superior ripple current capacity, endurance, surge withstand capability, and high ripple current characteristics, making it suitable for use in various power supply circuits.The MAL250054272E3 has a long endurance and life as it features a variety of protection structures, such as positive pressure regulations and an advanced electrolyte composition to prevent leakage. This capacitor has a superior temperature characteristic that stabilizes capacitance even when the temperature is changed drastically. Also, this device has a flat ripple current characteristic and low impedance which can reduce noise in the power supply circuit.The working principle of this aluminum electrolytic capacitor is based on Faraday’s law of electrolysis, which states that the rate of diffusion of an electrolyte through an electrolytic cell is proportional to the electric current that passes through it. In photosensitive terminals, electricity flows when illuminated and causes the electrolyte to diffuse, effectively generating a voltage across the plates. The aluminum oxide film that is formed on the aluminum plates acts as the dielectric for the capacitor and produces a larger capacitance than the other types of capacitors.ConclusionThe MAL250054272E3 aluminum electrolytic capacitor is a high performance device with excellent surge withstand capabilities, high ripple current characteristics with low impedance and low ESR. It has a rated voltage of 25 VDC and a capacitance of 4700uF. The superior temperature characteristic and positive pressure regulation makes it suitable for use in various power supply circuits. The working principle of this device is based on Faraday’s law of electrolysis.

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