Polarization:	Polar
Package / Case:	Radial, Can - Screw Terminals
Mounting Type:	Chassis Mount
Surface Mount Land Size:	--
Height - Seated (Max):	4.606" (117.00mm)
Size / Dimension:	3.031" Dia (77.00mm)
Lead Spacing:	1.252" (31.80mm)
Impedance:	43 mOhms
Ripple Current @ High Frequency:	21.7A @ 10kHz
Ripple Current @ Low Frequency:	15.2A @ 100Hz
Applications:	General Purpose
Ratings:	--
Series:	ALS70
Operating Temperature:	-40°C ~ 85°C
Lifetime @ Temp.:	5000 Hrs @ 85°C
ESR (Equivalent Series Resistance):	55 mOhm @ 100Hz
Voltage - Rated:	500V
Tolerance:	±20%
Capacitance:	5100µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction to Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are special capacitors that use a very thin layer of aluminum oxide as the dielectric. They are mainly used for energy storage, increasing the voltage, pulse shaping, and filtering due to their large capacitance (measured in Farad) and low internal resistance.

The ALS70P512NJ500

The ALS70P512NJ500 is a type of aluminum electrolytic capacitor manufactured by Nichicon Corporation. It has a capacitance of 470µF, a working voltage of 50V, and a temperature range of -40 to +105°C. It also has an equivalent series resistance (ESR) of 0.4Ohm and a leakage current of 0.005CV or 222µA, whichever is greater.

Application Field

Aluminum electrolytic capacitors are mainly used in power supplies, where they can act as smooth power sources or as energy storage devices for supply holdup or simultaneous rectifier decreasing. The ALS70P512NJ500 is suitable for general purpose applications, such as decoupling and filter circuits in audio and radio equipment, engine controllers, automobiles, industrial and medical equipment, and various other applications.

Working Principle

An aluminum electrolytic capacitor is constructed with an aluminum foil electrode covered by a very thin layer of aluminum oxide. This thin oxide layer acts as a dielectric, allowing for the large capacitance that an aluminum electrolytic capacitor can provide. The electrodes are separated by an electrolyte material, typically a liquid, but sometimes a gel or solid electrolyte.When a voltage is applied across the terminals of the capacitor, the aluminum oxide layer is penetrated by ions from the electrolyte, which move to the aluminum foil and form a very thin dielectric. The charge is stored on the electrodes in the form of electric field and is released when the voltage is removed.

Conclusion

The ALS70P512NJ500 is a type of aluminum electrolytic capacitor which is mainly used for decoupling, filter, and energy storage in general purpose applications. It has a capacitance value of 470µF, a working voltage of 50V, and a temperature range of -40 to +105°C. The working principle of an aluminum electrolytic capacitor is that a very thin layer of aluminum oxide is formed between two aluminum foil electrodes, which allows for the large capacitance value.

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