475KFM400MFH

Polarization:	Polar
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	0.512" (13.00mm)
Size / Dimension:	0.315" Dia (8.00mm)
Lead Spacing:	0.138" (3.50mm)
Ripple Current @ High Frequency:	110mA @ 100kHz
Ripple Current @ Low Frequency:	55mA @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	KFM
Operating Temperature:	-40°C ~ 105°C
Lifetime @ Temp.:	10000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	70.5474 Ohm @ 120Hz
Voltage - Rated:	400V
Tolerance:	±20%
Capacitance:	4.7µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are widely used for power electronic applications because of their high capacitance per volume and low cost relative to other types of capacitors. A capacitor consists of two metallic plates separated by a dielectric material. The dielectric material is usually a polymer or aluminum oxide, which acts as an insulator between the two plates. The plates have an electrical charge that is attracted to the negative charge of the dielectric material.The aluminum electrolytic capacitor consists of a foil (usually aluminum) that is rolled up into a spool and separated by one or more sheet of aluminum oxide or other dielectric material. The foil acts as the negative terminal of the capacitor while the oxide acts as the positive terminal. The oxide layer is formed by an electrochemical process in which electrons from the foil are attracted to the negative charge of the oxide. As the charge builds up on the foil it creates an electrostatic field which stores charge.The 475KFM400MFH aluminum electrolytic capacitor was created to provide extended life, low impedance, and high reliability capacitors for applications in a wide range of power electronic applications. These applications can range from motor drives to solar power systems. The capacitor was designed to offer very low ESR (Equivalent Series Resistance) and very high ripple current capability. These characteristics are achieved with the use of compression rolled foil technology, which increases the packing density of the capacitor while reducing ESR and achieving optimal reliability.Given the high capacitance per volume and the low ESR, the capacitor is ideal for applications that require a lot of current. For instance, it can be used in motor drives as it helps to reduce the voltage drop caused by resistance in the circuit. Additionally, this capacitor can be used in high power solar systems as the high ripple current capability reduces voltage fluctuations.Another application for the capacitor is in audio applications. The low ESR provides very low distortion, which is ideal for sound systems. By controlling the voltage ripple with the capacitor, a system can achieve better sound clarity and separation.The working principle of the aluminum electrolytic capacitor is based on the electrostatic field created when electrons from the aluminium foil are attracted to the negative charge of the oxide. It is this electrostatic field that stores the charge on the capacitor. When connected to a circuit, a current is induced in the circuit, which flows from the aluminium contact through the oxide to the negative charge, and out to the positive terminal of the circuit. This current flow creates an electric field that can be used for a variety of applications.In conclusion, the 475KFM400MFH aluminum electrolytic capacitor can be used in several applications where low impedance and high capacitance per volume are required. Its features make it ideal for applications in motor drives, solar power systems, and audio systems. The capacitor works by creating an electrostatic field that is used to store charge and create current flow in a circuit.

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