400USC470MEFC35X40

Polarization:	Polar
Package / Case:	Radial, Can - Snap-In
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	1.654" (42.00mm)
Size / Dimension:	1.378" Dia (35.00mm)
Lead Spacing:	0.394" (10.00mm)
Ripple Current @ High Frequency:	3.556A @ 10kHz
Ripple Current @ Low Frequency:	2.54A @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	USC
Operating Temperature:	-25°C ~ 85°C
Lifetime @ Temp.:	3000 Hrs @ 85°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	400V
Tolerance:	±20%
Capacitance:	470µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Aluminum Electrolytic Capacitors: 400USC470MEFC35X40 Application Field and Working Principle

Aluminum electrolytic capacitors (AECs) are electrical components that use metal oxide film electrodes to store and release an electric charge. They are much more efficient and reliable than other capacitor types, such as ceramic and paper capacitors. With superior performance in terms of high capacitance and long life, they are used in a wide array of applications. In this article, we’ll explore the application field and working principle of the 400USC470MEFC35X40 aluminum electrolytic capacitors (AECs).

Application Field

Aluminum electrolytic capacitors are extremely popular due to their high capacitance, low parasitic series inductance, low equivalent series resistance (ESR) and long life. They are suitable for both long-term and short-term applications.AECs are primarily used in electronic devices where reliable, long-term capacitance is important. Common applications include power supplies, electronic filters, signal coupling, radio-frequency (RF) receivers, audio amplifiers, and timing circuits.For example, AECs find extensive use in laptop computers, where they are used in the main power supply, the signal filters, the stabilizers, and the memory controller. They are also used in telecommunications systems and radio equipment, automobile electronics, medical monitoring, and instrumentation.

Working Principle

The 400USC470MEFC35X40 aluminum electrolytic capacitors use metal oxide film electrodes to store and release an electric charge. The aluminum foil, or anode, is the positive lead of the device. The cathode is formed by an oxide film on the aluminum foil.When an electric current passes through the circuit, the metal oxide film of the cathode absorbs positively charged ions from the electrolyte solution. This creates a cushion of electric charge on the anode and cathode, with the oxide film acting as the dielectric. This electric charge is stored, and the capacitor is now in a charged state.To release the stored charge, the electric current must be reversed. This causes the positively charged ions in the oxide film to be expelled back into the electrolyte solution. The capacitor is now in a discharged state.

Final Thoughts

The 400USC470MEFC35X40 aluminum electrolytic capacitors offer enhanced reliability and superior performance in terms of high capacitance and long life. They are suitable for long-term and short-term applications such as power supplies, electronic filters, signal coupling, RF receivers, audio amplifiers, and timing circuits. By understanding the working principle of an aluminum electrolytic capacitor, engineers and hobbyists can make full use of their capabilities to create reliable and efficient electronic devices.

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