LGN2V681MELB50

The LGN2V681MELB50 from Nichicon is a 680 µF, 350 V aluminum electrolytic capacitor in a snap-in terminal can. It is part of the LGN series designed for high-voltage, high-temperature, general-purpose applications and is RoHS compliant.

Designed for compact installations, this smaller-sized snap-in capacitor is intended for designs that require high-capacitance at elevated temperatures with defined ripple-current endurance.

Key Features

• Capacitance & Voltage — Rated at 680 µF and 350 V, providing bulk capacitance for high-voltage applications.
• High-Temperature Endurance — Specified for operation up to 105°C and rated to withstand 3000 hours of DC bias plus rated ripple current at 105°C (peak voltage not to exceed rated voltage).
• Snap-In Package, Compact Size — Radial, can-style snap-in mounting for secure PCB retention; one rank smaller case size than the LGU series to save board space.
• Ripple Current Capability — Rated ripple current of 1.7 A at 120 Hz and 2.431 A at 100 kHz to support applications with significant AC ripple components.
• Temperature & Tolerance — Operating temperature range −25°C to +105°C and capacitance tolerance of ±20% (measured at 120 Hz, 20°C).
• Polarized Electrolytic — Polarized design for DC applications where directional capacitance is required.
• Regulatory Compliance — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• General Power Electronics — Provides bulk capacitance for high-voltage circuits requiring stable DC energy storage and ripple smoothing.
• Industrial Equipment — Suited to general-purpose industrial designs that need high-voltage electrolytic capacitance and elevated-temperature endurance.
• Commercial Electronic Systems — Applicable where compact, high-capacitance snap-in solutions are needed for board-level power management.

Unique Advantages

• Long 105°C Endurance: Rated to withstand 3000 hours of DC bias plus rated ripple current at 105°C, supporting reliable operation in elevated-temperature environments.
• Compact, Space-Saving Case: One rank smaller than the LGU series delivers comparable capacitance in a reduced footprint for tighter board layouts.
• Robust Ripple Performance: Defined ripple ratings (1.7 A at 120 Hz, 2.431 A at 100 kHz) allow confident selection for designs with significant AC ripple.
• Secure PCB Mounting: Snap-in radial can package provides firm mechanical retention for through-hole assemblies.
• Clear Specification Set: Manufacturer-specified tolerance (±20%), operating range (−25°C to +105°C), and endurance criteria simplify design validation.
• RoHS Compliance: Conforms to applicable RoHS directives for environmental regulatory requirements.

Why Choose LGN2V681MELB50?

The LGN2V681MELB50 combines high-voltage (350 V) bulk capacitance with elevated-temperature endurance and compact snap-in packaging, making it a practical choice for designers needing reliable general-purpose electrolytic capacitance in space-constrained assemblies. Its specified ripple current ratings and 3000-hour endurance at 105°C provide measurable durability for demanding thermal environments.

As a member of Nichicon’s LGN series, this part is suited to engineers and procurement teams looking for a well-documented, RoHS-compliant aluminum electrolytic solution with clear performance parameters for validation and deployment.

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