EKMR421VSN121MP25S

Polarization:	Polar
Package / Case:	Radial, Can - Snap-In
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	1.476" (37.50mm)
Size / Dimension:	0.866" Dia (22.00mm)
Lead Spacing:	0.394" (10.00mm)
Ripple Current @ High Frequency:	1.1154A @ 50kHz
Ripple Current @ Low Frequency:	780mA @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	KMR
Operating Temperature:	-25°C ~ 105°C
Lifetime @ Temp.:	2000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	420V
Tolerance:	±20%
Capacitance:	120µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction

Aluminum electrolytic capacitors, also known as alumina caps, are used in a wide range of electronic applications due to their low cost, higher capacitance and high voltage rating. They are a type of capacitor consisting of two aluminum plates separated by an electrolyte. The electrolyte is a thin, porous layer of oxide that is formed on the surface of the aluminum plates, allowing ions to pass through but blocking most of the ions from entering. This layer of oxide, known as a dielectric, acts as an insulator, preventing the capacitor from shorting out or burning out. The EKMR421VSN121MP25S is a high-quality aluminum electrolytic capacitor that is often used in audio, industrial, and automotive applications. This type of capacitor has a wide range of uses, from electronic switching and coupling to power conditioning and filtering.

Applications

The EKMR421VSN121MP25S aluminum electrolytic capacitor is a versatile part that is suitable for a variety of electronic applications. It is commonly trusted to perform in high-voltage applications, as it has a variety of features that make it especially suitable for use in high-voltage circuits. One of the most common applications of the EKMR421VSN121MP25S is in audio systems. It is often used in audio amplifiers and loudspeakers for power conditioning and filtering. Its high voltage rating allows it to withstand high voltage levels with little risk of damage or failure. Additionally, its high capacitance ensures it can store the electrical energy needed for use in audio applications. The EKMR421VSN121MP25S is also used in power conditioning and filtering circuits in industrial applications. It provides a reliable, stable voltage to the components in these systems, which can help them operate reliably and efficiently. It is also used in automotive applications, such as in automobile detailing, headlights, and air conditioning systems.

Working Principle

The EKMR421VSN121MP25S works by using the electrolyte that coats the aluminum plates to create an electric field between them. The electric field causes the positive and negative charges on the capacitor to be separated, creating a charge that can be stored. The more electrolyte that is present between the plates, the higher the capacitance, or the amount of charge the capacitor can store. The aluminum plates are made of a porous material, which allows ions to pass through the plate and into the electrolyte. When a charge is applied to the capacitor, the ions will move through the electrode and accumulate on either side. This accumulation of ions creates an electrical field that acts to separate the two plates, preventing the charges from dissipating and allowing the capacitor to store the charge.

Conclusion

The EKMR421VSN121MP25S aluminum electrolytic capacitor is a versatile part that has a wide range of uses in audio, industrial, and automotive applications. It works by using an electrolyte to create an electric field between the two aluminum plates, which results in a charge that can be stored. The capacitor is especially useful in high-voltage applications due to its high voltage rating and high capacitance.

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