ALS81U684NW025

Polarization:	Polar
Package / Case:	Radial, Can - Screw Terminals
Mounting Type:	Chassis Mount
Surface Mount Land Size:	--
Height - Seated (Max):	6.732" (171.00mm)
Size / Dimension:	3.031" Dia (77.00mm)
Lead Spacing:	1.252" (31.80mm)
Impedance:	8 mOhms
Ripple Current @ High Frequency:	29A @ 10kHz
Ripple Current @ Low Frequency:	28.4A @ 100Hz
Applications:	General Purpose
Ratings:	--
Series:	ALS81
Operating Temperature:	-40°C ~ 105°C
Lifetime @ Temp.:	2000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	7 mOhm @ 100Hz
Voltage - Rated:	25V
Tolerance:	±20%
Capacitance:	680000µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Aluminum Electrolytic Capacitors

The ALS81U684NW025 aluminum electrolytic capacitor (or ‘electro-cap’) is a type of capacitor that contains two conductive plates – a cathode (‘negative’) and an anode (‘positive’) – separated by a dielectric material. This type of capacitor is widely used in electronics for its high capacitance and voltage ratings. In this article, we will discuss its applications, working principle and benefits.

Applications

Aluminum electrolytic capacitors are extremely versatile in their applications. They have been used in various types of power supplies, AC/DC converters, motor drivers, inverter circuits, emergency lighting systems, activity detection and lightning protection circuits. They can also be used in high-voltage rectifiers, audio amplifiers, and even power tools. Due to their low cost and high energy density, they are also widely used in consumer electronics.

Working Principle

Aluminum electrolytic capacitors function on the principle of an electrochemical cell. They consist of two metallic plates – one is made of aluminum, and the other of aluminum oxide – submerged in an electrolytic solution. When an electric potential is applied between the two plates, an electrical current flows between them and creates a charge imbalance. This results in an electrical field that attracts ions of the electrolytic solution to the negative plate, which are then released when the current is removed. This creates a charge separation and stores energy in the form of electric potential.

Benefits

Aluminum electrolytic capacitors possess a variety of advantages, such as a high capacitance, low equivalent series resistance (ESR), high operating temperature, and excellent reliability. They typically feature higher capacitance-to-volume ratios than other types of capacitors, which makes them ideal for storing energy in compact applications. Additionally, aluminum electrolytic capacitors are generally cheaper than other capacitor types. In conclusion, the ALS81U684NW025 aluminum electrolytic capacitor is one of the most widely used components in electronics. Its versatility, cost-effectiveness, and reliable performance make it an invaluable component in many different types of applications.

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