LAR2E681MELA40

Polarization:	Polar
Package / Case:	Radial, Can - Snap-In
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	1.575" (40.00mm)
Size / Dimension:	0.984" Dia (25.00mm)
Lead Spacing:	0.394" (10.00mm)
Ripple Current @ High Frequency:	2.55A @ 50kHz
Ripple Current @ Low Frequency:	1.7A @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	LAR
Operating Temperature:	-40°C ~ 105°C
Lifetime @ Temp.:	2000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	250V
Tolerance:	±20%
Capacitance:	680µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Aluminum Electrolytic Capacitors: LRA2E681MELA40 Application Field and Working Principle

Aluminum electrolytic capacitors are widely used due to their high capacitance and small volume. The LRA2E681MELA40 aluminum electrolytic capacitor, is a high-voltage aluminum electrolytic capacitor which is specifically designed for switching power supplies. It is widely used in various industries for power conversion, high-speed signal transmission, electronic control systems and other applications. This article will discuss the application fields and working principle of the LRA2E681MELA40 aluminum electrolytic capacitor in detail.

Application Fields

The LRA2E681MELA40 aluminum electrolytic capacitor is suitable for a wide range of applications, such as switching power supplies, low-voltage and high-frequency applications, high-speed signal transmission, electronic control systems, and many other related applications.

• Switching Power Supplies: The LRA2E681MELA40 aluminum electrolytic capacitor is particularly suitable for use in high-efficiency switching power supplies. Its high capacitance and high ripple yield, combined with its low equivalent series resistance (ESR) makes it an ideal choice for power supply applications.
• Low-Voltage and High-Frequency Applications: The LRA2E681MELA40 aluminum electrolytic capacitor is ideal for low-voltage and high-frequency applications. Its low equivalent series resistance (ESR) and small size enable it to store a large amount of energy in a small form factor.
• High-Speed Signal Transmission: The excellent high-temperature performance and low ESR of the LRA2E681MELA40 aluminum electrolytic capacitor makes it ideally suited for high-speed signal transmission applications. Its low ESR allows signals to travel with very little distortion, making it an ideal choice for data communication applications.
• Electronic Control Systems: The LRA2E681MELA40 aluminum electrolytic capacitor is suitable for use in a wide range of electronic control systems. Its high capacitance and low equivalent series resistance make it ideal for use in power control circuits.

Working Principle

The LRA2E681MELA40 aluminum electrolytic capacitor is composed of a wound aluminum oxide dielectric layer, an anode made of aluminum foil, and a cathode made of porous nickel-plated aluminum. The anode and cathode of the capacitor are connected to an electrolyte, which forms a battery-like bipolar section. The working principle of the LRA2E681MELA40 aluminum electrolytic capacitor is based on the principle of electrochemical reaction. When a voltage is applied across the capacitor, it causes the electrolyte to react with the insulating aluminum oxide layer, which creates a direct electrical connection between the anode and the cathode. This decreases the resistance of the capacitor, allowing it to store more energy. Furthermore, the porous nickel-plated aluminum cathode increases the surface area of the capacitor, enabling it to store more energy compared to other types of capacitors. The increased capacitance of the capacitor ensures that the capacitor can supply higher current and higher frequency output than other capacitors. In addition, the aluminum electrolytic capacitor has a low equivalent series resistance (ESR), which further increases its efficiency. The low ESR enables the capacitor to provide a stable voltage output and low power consumption in high-frequency applications.

Conclusion

In conclusion, the LRA2E681MELA40 aluminum electrolytic capacitor is a high-voltage electrolytic capacitor which has a wide range of applications. Its high capacitance and low equivalent series resistance make it attractive for use in switching power supplies, low-voltage and high-frequency applications, high-speed signal transmission, and electronic control systems. The working principle of the LRA2E681MELA40 aluminum electrolytic capacitor is based on the principle of electrochemical reaction. Its low ESR ensures that it can provide stable voltage and low power consumption in high-frequency applications, making it an ideal choice for a wide range of applications.

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