ESMQ161ELL331MMP1S

Polarization:	Polar
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	1.457" (37.00mm)
Size / Dimension:	0.709" Dia (18.00mm)
Lead Spacing:	0.295" (7.50mm)
Ripple Current @ High Frequency:	1.4925A @ 100kHz
Ripple Current @ Low Frequency:	995mA @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	SMQ
Operating Temperature:	-40°C ~ 85°C
Lifetime @ Temp.:	2000 Hrs @ 85°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	160V
Tolerance:	±20%
Capacitance:	330µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Aluminum Electrolytic Capacitors: ESMQ161ELL331MMP1S Application Field and Working Principle

Aluminum electrolytic capacitors are electronic devices composed of aluminum foil, paper, and insulating material, encased in an aluminum cylindrical can. This type of capacitor is one of the most commonly used passive components in electrical and electronic systems. The ESMQ161ELL331MMP1S is a specialized aluminum electrolytic capacitor specifically used in power supply units and switching power supplies as energy storage and ripple absorption components. This type of capacitor is available in different sizes and values depending on the specific application.This capacitor has a linear relationship between the applied voltage and the capacitance value. It also has an extremely low equivalent series resistance (ESR) and offers a high-frequency characteristic. The ESMQ161ELL331MMP1S also has a low leakage current, excellent stability, low temperature coefficient, and a high-voltage capability. The ESMQ161ELL331MMP1S capacitor is mainly used in automotive applications,power control circuits, and LED lighting. It is also designed for use in the electrical power systems of automobiles, industrial equipment, and other applications where low ESR, high ripple current, and long-term reliability are paramount.The working principle of an aluminum electrolytic capacitor is relatively simple. The most fundamental structure of an aluminum electrolytic capacitor consists of two electrode plates, a dielectric layer, and an electrolyte. When a voltage is applied between these two electrodes, an electric field is generated. This electric field interacts with the dielectric layer, resulting in the accumulation of charges. This accumulation of charges is the basis for the capacitance effect.The dielectric layer on an aluminum electrolytic capacitor consists of a thin layer of an oxide formed by an electrolytic reaction between the aluminum and an electrolyte. This oxide layer acts as an insulator and prevents direct current (DC) flows between the two electrodes. However, when an alternating current (AC) is applied to the capacitor, the field produced by the current can break through the oxide layer, allowing current to flow at an increased voltage. The electrolyte used in an aluminum electrolytic capacitor is typically a combination of manganese dioxide and sulfuric acid. When an electrical field is generated, manganese ions within the electrolyte flow toward the negative electrode. This ions transfer process changes the the oxide layer and allows for charge to be stored more effectively. This charge storage process is known as capacitance. In conclusion, aluminum electrolytic capacitors, such as the ESMQ161ELL331MMP1S, provide an energy storage and ripple absorption element used in power supply units and switching power supplies. These capacitors have a linear relationship between the applied voltage and the capacitance value, and offer a low equivalent series resistance and high-frequency characteristics. This type of capacitor is used widely in automotive and industrial applications, as it offers low leakage current, excellent stability, a low temperature coefficient, and a high-voltage capability.

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