LNT2H681MSEF

The LNT2H681MSEF from Nichicon is a screw-terminal aluminum electrolytic capacitor in the LNT series designed for general-purpose power applications. It provides 680 µF capacitance at a rated voltage of 500 V in a radial can with screw terminals and a φ51 × 100 mm package.

Engineered for elevated-temperature operation, this part is specified for use from −25°C to 105°C with a rated lifetime of 2000 hours at 105°C, offering stable performance where high voltage and robust thermal endurance are required.

Key Features

• Capacitance & Voltage  680 µF rated capacitance at 500 V for high-voltage energy storage and filtering.
• Screw Terminal Mounting  Radial can with screw terminals (M5 bolt for φ51) for secure mechanical and electrical connections in chassis-mounted designs.
• High-Temperature Endurance  Rated lifetime of 2000 hours at 105°C when operated under rated ripple and DC bias conditions.
• Operating Temperature Range  Specified for −25°C to +105°C (applicable to voltage range 160 to 500 V), suitable for elevated-temperature environments.
• Ripple Current Performance  Supports 4.2 A at 120 Hz and 5.88 A at 100 kHz, enabling effective ripple handling across low and high frequencies.
• Polarized Electrolytic Design  Polarized construction for DC applications; capacitance tolerance ±20% at 120 Hz, 20°C.
• Compact Form Factor  Physical dimensions φ51 × 100 mm (L: 10 × D: 5.1 cm) for dense power assemblies where high voltage capability is needed.
• RoHS Compliant  Conforms to RoHS standards for material compliance.

Typical Applications

• General-purpose power systems  Bulk energy storage and smoothing in high-voltage power supply modules where 500 V-rated capacitance is required.
• Industrial power electronics  DC link or filter stages in industrial equipment that operate at elevated temperatures up to 105°C.
• Chassis-mounted assemblies  Systems requiring secure screw-terminal connections for reliable wiring and mechanical retention.

Unique Advantages

• High-voltage capability: 500 V rating enables use in higher-voltage power stages without additional series stacking.
• Thermal durability: 2000-hour rated life at 105°C provides predictable service life in hot operating environments.
• Screw-terminal reliability: Mechanical screw terminals provide robust, low-maintenance terminations suited to field service and heavy-gauge wiring.
• Broad ripple handling: Specified ripple current at both 120 Hz and 100 kHz supports diverse switching and line-frequency applications.
• Engineering-friendly tolerance: ±20% capacitance tolerance and explicit low-temperature impedance guidance simplify design margin calculations.
• Regulatory compliance: RoHS compliance reduces materials management complexity for customers tracking restricted substances.

Why Choose LNT2H681MSEF?

The LNT2H681MSEF delivers a combination of high-voltage rating, substantial capacitance, and elevated-temperature endurance in a screw-terminal aluminum electrolytic package. It is well suited to engineers designing general-purpose and industrial power systems that require dependable DC energy storage and filtering at up to 500 V and continuous operation at elevated temperatures.

With defined ripple current values at both low and high frequencies, polarized construction, and RoHS compliance, this part offers predictable electrical behavior and regulatory clarity—making it a practical choice for teams focused on reliable performance and straightforward integration into chassis-mounted power assemblies.

If you would like pricing, availability, or a formal quote for LNT2H681MSEF, please request a quote or contact sales to submit your inquiry.