ESMQ161VSN392MA50S

Polarization:	Polar
Package / Case:	Radial, Can - Snap-In
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	1.969" (50.00mm)
Size / Dimension:	1.378" Dia (35.00mm)
Lead Spacing:	0.394" (10.00mm)
Ripple Current @ High Frequency:	9A @ 50kHz
Ripple Current @ Low Frequency:	6A @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	SMQ
Operating Temperature:	-25°C ~ 85°C
Lifetime @ Temp.:	2000 Hrs @ 85°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	160V
Tolerance:	±20%
Capacitance:	3900µF
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction to Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are a type of capacitor that uses electrochemical reactivity to store electrical energy. Unlike other capacitors, they feature an anode consisting of aluminum oxide, making them a unique and powerful type of capacitor. This type of capacitor is found in many electronic components, such as motors and power supplies, due to its large capacitance values and high frequency response.

ESMQ161VSN392MA50S Application Field and Working Principle

The ESMQ161VSN392MA50S aluminum electrolytic capacitor is a snap-in style capacitor with an operating temperature range of -55°C to +105°C. The rated voltage is 100V and the rated capacitance is 392µF. This capacitor is typically used in audio-frequency and low-frequency circuits, as well as motor drives and power supplies.The working principle of the ESMQ161VSN392MA50S aluminum electrolytic capacitor is based on the electrochemical nature of an aluminum oxide film. When an electric voltage is applied to an electrolytic capacitor, two processes occur. Firstly, an oxidation reaction occurs at the anode, depositing an oxide film on the anode\'s surface. Secondly, a reduction reaction occurs at the cathode, which separates the electrode from the electrolyte and forms a thin layer of noble salt ions. These two processes are the basic principle of the electrolytic capacitor, and they enable the capacitor to store electrical energy in the form of charges.The capacitance of an aluminum electrolytic capacitor is dependant on the size of the oxide film and the thickness of the electrolyte, which can be controlled through the selection of different operating voltages. The ESMQ161VSN392MA50S has a higher operating voltage compared to comparable capacitors, and this results in increased capacitance. This capacitor is perfect for applications that require high capacitance, such as audio-frequency and low-frequency circuits, motor drives, and power supplies.

Disadvantages of Aluminum Electrolytic Capacitors

Despite their many advantages, aluminum electrolytic capacitors have several drawbacks. Firstly, due to the nature of the electrochemical reaction, the capacitance of the capacitor decreases over time. This phenomenon is known as “aging”, and typically occurs when the capacitor is used in applications with high temperatures or high voltages. Secondly, aluminum electrolytic capacitors are susceptible to leakage currents, which can cause them to fail. Thirdly, this type of capacitor also has high equivalent series resistance (ESR), resulting in significant voltage drops across the capacitor. To reduce the effects of ESR, the capacitor should be mounted on a heatsink.

Conclusion

The ESMQ161VSN392MA50S aluminum electrolytic capacitor is a well-designed and reliable capacitor that can be used in a wide range of applications. This capacitor is suitable for use in audio-frequency and low-frequency circuits, motor drives, and power supplies due to its high capacitance values and high frequency response. However, this type of capacitor also has some drawbacks, such as aging, leakage, and high ESR. To reduce the effects of these drawbacks, the capacitor should be carefully selected for the application and mounted on a heatsink.

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