Series:	BPA
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	470µF
Tolerance:	±20%
Voltage - Rated:	50V
ESR (Equivalent Series Resistance):	494 mOhm @ 120Hz
Lifetime @ Temp.:	2000 Hrs @ 85°C
Operating Temperature:	-40°C ~ 85°C
Polarization:	Bi-Polar
Ratings:	--
Applications:	Audio
Ripple Current @ Low Frequency:	860mA @ 120Hz
Ripple Current @ High Frequency:	1.2814A @ 50kHz
Lead Spacing:	--
Size / Dimension:	0.630" Dia x 1.535" L (16.00mm x 39.00mm)
Height - Seated (Max):	--
Surface Mount Land Size:	--
Mounting Type:	Through Hole
Package / Case:	Axial, Can

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Introduction

Aluminum electrolytic capacitors are used in a wide range of applications due to their ability to store electrical energy, offer exceptional performance, feature robust construction, and excellent thermal and mechanical stability. This type of capacitor is widely used in electronics applications across different industries such as consumer electronics, automotive, industrial, medical, and military and is extremely popular among engineers. The 477BPA050M is one of the aluminum electrolytic capacitors that offers an extensive range of features and benefits.

477BPA050M Overview

The 477BPA050M is a general purpose aluminum electrolytic capacitor featuring a radial leaded can-type construction with a maximum rated voltage of 50V and a capacitance value of 0.047µF. It has a capacitance tolerance of ±20% and an operating temperature range of -55°C to +85°C. This capacitor is constructed using an anodized aluminum case and a chemical-treated aluminum foil to make it resistant to damage caused by mechanical and environmental stress. It is also coated with an epoxy coating to provide corrosion resistance.

477BPA050M Application Fields

The 477BPA050M is mainly used in power supply systems and circuits as well as for frequency-based circuits and pulse feed applications. This capacitor is also used in motor control circuits, voltage regulation circuits, echoic and RF circuity, audio amplifiers, and electronic control circuits.

477BPA050M Working Principle

The 477BPA050M functions similar to other types of capacitors. It stores electrical energy in an electrochemical form and is able to release the energy later when it is needed. When connected to a source, an electrolytic capacitor can be charged up to a voltage that is greater than the source voltage. This process is known as "polarization" and it allows the capacitor to store more energy than what is normally stored in other types of capacitors.The electrochemical process of charge and discharge that occurs within an electrolytic capacitor is the basis of its operation. When a voltage is applied across the capacitor terminals, ions are attracted to its surfaces and the formation of an electric field occurs. These ions form an electric double layer, which serves as the dielectric for the capacitor. The charge that is stored in the dielectric is what allows the capacitor to provide the necessary electrical energy that is needed in a circuit.

Conclusion

The 477BPA050M aluminum electrolytic capacitor is an excellent choice for a wide range of applications. This capacitor is able to offer maximum capacitance and excellent reliability at a relatively low cost. It is also a great choice for electronic applications that require a high capacitance and low ESR value. The 477BPA050M is able to offer outstanding performance and cost-effectiveness in most applications.

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