ALF40G271EC400

Ratings:	--
Package / Case:	Radial, Can - Snap-In - 5 Lead
Mounting Type:	Through Hole, Press-Fit
Surface Mount Land Size:	--
Height - Seated (Max):	1.457" (37.00mm)
Size / Dimension:	1.575" Dia (40.00mm)
Lead Spacing:	0.984" (25.00mm)
Impedance:	266 mOhms
Ripple Current @ High Frequency:	4.95A @ 10kHz
Ripple Current @ Low Frequency:	2.21A @ 100Hz
Applications:	General Purpose
Series:	ALF40
Polarization:	Polar
Operating Temperature:	-40°C ~ 105°C
Lifetime @ Temp.:	5000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	430 mOhm @ 100Hz
Voltage - Rated:	400V
Tolerance:	±20%
Capacitance:	270µF
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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What are Aluminum Electrolytic Capacitors and ALF40G271EC400 Application Field and Working Principle?Aluminum electrolytic capacitors are devices used for storing electrical energy or increasing the voltage of a signal in electrical and electronic circuits. They are made from an aluminum oxide layer that acts as a dielectric and a jelly like electrolyte, either liquid or in gel form. Electrolytic capacitors are polarized components, so they must be connected correctly. They have three major characteristics, which are capacitance, voltage rating, and ESR (Equivalent Series Resistance). Their application fields as voltage dividers, energy storage, timing, filtering, bypass, de-coupling, and frequency selective circuits.The ALF40G271EC400 is an aluminum electrolytic capacitor that is especially designed for miniature SMD (surface mount device) applications. It is an ultra-miniature aluminum encapsulated type of electrolytic capacitor. It has a rated capacitance of 47uF, a rated voltage of 16V, and a rated ripple current of 500mA. This capacitor is uniquely designed to deliver miniature size and high capacitance along with excellent impedance characteristics.Working PrincipleThe working principle of an Aluminum electrolytic capacitor is based on the Faraday Principle of Electrolysis. An electrolyte is placed between two electrically conductive plates - and between them an electrical voltage is applied. This voltage causes electrical charges to form at both the surfaces of the two metal plates, creating an electric field between them. The electric field generated by it attracts oppositely charged ions from the electrolyte, thus forming a dielectric. The capacitor is now used for storing electrical energy.The ALF40G271EC400 is a special type of Aluminum Electrolytic Capacitor and it has an anodized electrolyte for extended life. It has extremely low equivalent series resistance (ESR) and high capacitance. Its capacitance is stable over temperature and its capacitance increases with increasing voltage, up to a certain limit. Furthermore, its capacitance is not affected by humidity and vibrations. ApplicationsThe ALF40G271EC400 Aluminum electrolytic capacitor can be used in many applications such as power supplies, lighting, and industrial applications. Its miniature size and high capacitance make it an ideal choice for portable devices such as laptops, tablets, cameras, and games. In addition, due to its low ESR, high ripple current and high capacitance, it is suitable for high frequency AC/DC converters, switching power supply, LED lighting and adapters. This capacitor is also used in noise suppression and signal filtering applications.In conclusion, the ALF40G271EC400 Aluminum Electrolytic Capacitor is a great choice for applications that require high capacitance, low ESR, and high ripple current. Its miniature size and extended life make it ideal for portable electronics. It is a great choice for AC/DC converters, switching power supply, LED lighting, and adapters.

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