EPAG451ELL470MK40S

Series:	PAG
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	47µF
Tolerance:	±20%
Voltage - Rated:	450V
ESR (Equivalent Series Resistance):	--
Lifetime @ Temp.:	2000 Hrs @ 105°C
Operating Temperature:	-25°C ~ 105°C
Polarization:	Polar
Ratings:	--
Applications:	General Purpose
Ripple Current @ Low Frequency:	390mA @ 120Hz
Ripple Current @ High Frequency:	702mA @ 100kHz
Lead Spacing:	0.197" (5.00mm)
Size / Dimension:	0.492" Dia (12.50mm)
Height - Seated (Max):	1.654" (42.00mm)
Surface Mount Land Size:	--
Mounting Type:	Through Hole
Package / Case:	Radial, Can

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are majorly used in power systems as well as electricity storage components for high-frequency circuits of varied electronic equipment. These capacitors are manufactured with an anode made up of aluminum foil, a thin and electrolyte-soaked paper, and a barrier that act as the cathode. When electric current passes through, it creates an insulator film because of anodic oxidation caused by the action of the electric current being released. The application fields and working pricipals of EPAG451ELL470MK40S capacitors are discussed in detail below.

Application Fields

EPAG451ELL470MK40S aluminum electrolytic capacitors are used in various application fields, including:

• Power systems, including power grid and wind turbine power systems.
• Safety-critical control circuits for airplanes, cars, and robotics.
• Voltage regulation and line impedance matching in automotive, power-life, and railroad subsystems.
• Synchronization of vibration motors in medical equipment.
• Electrical bus and power line decoupling.
• Power supply filtering.
• High-frequency circuits of cell phones, computers, and digital cameras.

Working Principle

EPAG451ELL470MK40S aluminum electrolytic capacitors utilize a double-layer structure in which two layers of aluminum foil act as an anode and thin electrolyte-soaked tissue paper act as the barrier between the two layers. The electric current is applied across the gap between them to generate a shield film between the two layers. This shield film provides an excellent dielectric layer with good endurance and high behavior of insulation that controls the flow of current.When the current flows through the capacitor, there exists a potential across the two layers of the aluminum foil and the paper, making it function like a battery. The charge stored on each layer is dependent on the voltage across the two and the distance between them. The charge builds up until the field strength of the capacitor is strong enough to overcome the applied voltage and the current stops. This makes the capacitor act like a resistor as the current is resisted by the capacitor. The capacitor is then charged and discharged in this manner over and over again as needed.In conclusion, EPAG451ELL470MK40S aluminum electrolytic capacitors are often used in various application fields, such as in power systems, high-frequency circuits, voltage regulation, and power supply filtering. These capacitors work by utilizing a double-layer structure with two layers of aluminum foil and a thin electrolyte-soaked paper in between. When a current is applied, the electric fields build up and resist the current, making the capacitor act like a resistor. Thus, these capacitors are useful for providing a reliable and efficient storage of energy.

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