LGR2D681MELA40

Polarization:	Polar
Package / Case:	Radial, Can - Snap-In
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	1.654" (42.00mm)
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:	LGR
Operating Temperature:	-40°C ~ 105°C
Lifetime @ Temp.:	10000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	200V
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: LGR2D681MELA40 Application Field and Working PrincipleAluminum electrolytic capacitors (AEC) are widely used in electronic applications due to their low cost, large capacitance, long-life and low leakage current. They are constructed using an electrolyte-soaked paper (or plastic) wrap between two metal plates. The metal plates are then connected to electrical leads to complete the circuit.The LGR2D681MELA40 is an AEC variant designed to handle higher currents and higher voltages than standard AECs. LGR2D681MELA40s have a ripple current capacity of 2.5A and a surge current capacity of 40A. They are a popular choice in wide range of applications including automotive electronics, industrial applications, and power-supply systems.Operating PrincipleThe operating principle of an AEC is quite simple. When power is applied, the metal plates act like two electrodes in an electrolyte solution. The plates attract electrons from one of the plates, creating a negative charge on the plate. This negative charge attracts positive ions from the electrolyte, forming a thin layer of charged ions near the surface of the plates. This layer of ions is called an electric double layer, and it affects the capacitance of the capacitor.The thickness of the electric double layer determines the capacitance of the capacitor. So when the voltage changes, so does the capacitance. This means that by controlling the voltage applied to the metal plates, the capacitor can be used to store or release electricity depending on the application.ApplicationsDue to their high ripple current capacity, LGR2D681MELA40 are often used in a wide range of applications including:• Automotive: LGR2D681MELA40s are commonly used in the automotive sector due to their ability to handle large current spikes. Used in ECUs, airbag sensors and other safety devices, they provide the necessary level of reliability and protection.• Industrial Applications: They are used in industrial applications because of their high capacitance, low leakage current and high-temperature stability. They are ideal for use in welding equipment, UPS systems, and industrial motors.• Power Supply: LGR2D681MELA40s are also used in power supplies for their ability to handle high voltages. They are used in power supplies that require a stable voltage, such as laptop adapters and battery chargers.ConclusionOverall, LGR2D681MELA40 aluminum electrolytic capacitors are an ideal choice for high-current and high-voltage applications due to their high capacitance, low leakage current, and long-life. They are used in a wide range of applications, including automotive electronics, industrial equipment, and power-supply systems.

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