400PK4.7MEFC10X12.5

Polarization:	Polar
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	0.551" (14.00mm)
Size / Dimension:	0.394" Dia (10.00mm)
Lead Spacing:	0.197" (5.00mm)
Ripple Current @ High Frequency:	84mA @ 10kHz
Ripple Current @ Low Frequency:	56mA @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	PK
Operating Temperature:	-40°C ~ 85°C
Lifetime @ Temp.:	2000 Hrs @ 85°C
ESR (Equivalent Series Resistance):	--
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: 400PK4.7MEFC10X12.5 Application Field and Working Principle

Aluminum electrolytic capacitors, also known as electrolytic caps, use an anode, usually constructed from aluminum foil, a dielectric insulator of ionically conductive material known as a separator, and a cathode of electrolyte (a liquid or paste). These components are electrically connected via two leads. They are widely used in electronics for decoupling, energy storage, and power filtering. The 400PK4.7MEFC10X12.5 is a type of aluminum electrolytic capacitor and this article will discuss its application field and working principle.

Application Field

The 400PK4.7MEFC10X12.5 aluminum electrolytic capacitor is typically used in large-scale designs, such as radio equipment, electrical toys, audio equipment, etc. It is especially suitable for use in AC motors, power supplies, lighting System, and other frequency related electrical circuits. It has a very large capacitance and high voltage rating, making it ideal for use in high voltage applications.

Working Principle

An aluminum electrolytic capacitor consists of two metal plates, an electrolyte, and an insulating material. The metal plates are usually formed of a metal oxide layer. This layer serves as the dielectric. The electrolyte is a liquid or paste that serves as the electrode, while the insulating material is usually paper, plastic, or wax, and serves to isolate the two metal plates.When the capacitor is charged, current through the dielectric causes a build-up of electric charge on the two metal plates, creating an electric field between the plates. The electric field creates an electrostatic force that attracts the liquid or paste electrolyte to the two metal plates, and the combination of the electrostatic force and the electrolyte create a dielectric between the plates, thus allowing electrical energy to flow between them.

Conclusion

The 400PK4.7MEFC10X12.5 aluminum electrolytic capacitor is a popular choice for a variety of high voltage applications, such as AC motors, power supplies, lighting system, and other frequency related electrical circuits. Its working principle consists of two metal plates, an electrolyte, and an insulating material, with the metal plates typically formed of a metal oxide layer. When the capacitor is charged, current through the dielectric causes a buildup of electric charge on the two metal plates, creating an electric field between the plates. The combination of the electrostatic force and the electrolyte create a dielectric between the plates, thus allowing electrical energy to flow between them.

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