477SML004M

Series:	SML
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	470µF
Tolerance:	±20%
Voltage - Rated:	4V
ESR (Equivalent Series Resistance):	1.24 Ohm @ 120Hz
Lifetime @ Temp.:	2000 Hrs @ 85°C
Operating Temperature:	-40°C ~ 85°C
Polarization:	Polar
Ratings:	--
Applications:	General Purpose
Ripple Current @ Low Frequency:	150mA @ 120Hz
Ripple Current @ High Frequency:	225mA @ 100kHz
Lead Spacing:	--
Size / Dimension:	0.248" Dia (6.30mm)
Height - Seated (Max):	0.307" (7.80mm)
Surface Mount Land Size:	0.260" L x 0.260" W (6.60mm x 6.60mm)
Mounting Type:	Surface Mount
Package / Case:	Radial, Can - SMD

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Aluminum Electrolytic Capacitors leverage an oxide layer on the surface of aluminum foil as a dielectric material to store energy electrostatically. This type of capacitors are constructed of two metalized aluminum plates stacked together separated by an electrolyte and a separator. They are widely used in electronics for applications such as energy storage, AC filtering, pulse development, and signal bypassing. The 477SML004M is a surface mount aluminum electrolytic capacitor specifically designed for use in switch-mode power supplies, pulse power equipment, and DC-DC converters. The 477SML004M component is a long-life capacitor. Its low ESR structure ensures low equivalent series resistance for a stable operation even in high-frequency circuit applications. The device has a solid sealing construction that allows long-term life and provides high-reliable operation in harsh environments. It typically offers lower equivalent series inductance, enabling faster rise time and higher switching frequencies. The 477SML004M surface mount aluminum electrolytic capacitor features a built-in aluminum oxide layer on the surface, which provides high-dielectric strength and allows better power handling. This oxide layer also ensures high leakage current and energy dissipation, as well as an impressive voltage range. Withstanding the high-temperature process is one of this capacitor\'s biggest benefits, with its operating temperature range of -55 to +105 degrees Celsius. The 477SML004M also features excellent dielectric absorbance under high frequency vibrations and delivers a consistent performance. The 477SML004M has a wide range of practical applications, such as DC-DC buck converters, LED lighting, low ripple, switching voltage regulators, and voltage ports. The capacitor\'s low ESR also makes it an ideal choice for DC/DC converters and other high-frequency applications such as noise filters with a magnetic field. Its high capacitance values also makes it suitable for use in power-saving applications that require a large amount of capacitance. The working principle of the 477SML004M aluminum electrolytic capacitor relies on the law of electrostatics. As electrons flow in an infinite loop from the negative terminal of the capacitor to the positive terminal and then back again, the electric field formed between the two aluminum plates stores the electrical energy. When a voltage is applied to the metal plates, the charges are separated, which in turn creates a potential difference at the terminals, thus producing a measurable capacitance. When the voltage is removed, the charges on the metal plates are forced to recombine to their original form due to the restoration of equilibrium. The energy stored in the capacitor is thus released at a slower rate, providing a steady current. Overall, the 477SML004M aluminum electrolytic capacitor provides superior energy storage, efficient power handling, and a reliable performance. It is an essential component in DC-DC switching and high-frequency circuits and can be found in applications ranging from power supplies and pulse power systems to industrial electronics and medical devices. Its high operating temperature range and low ESR make it an ideal choice for a variety of design applications.

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