LNT2W681MSEFBN

The LNT2W681MSEFBN is a screw-terminal aluminum electrolytic capacitor from Nichicon's LNT series designed for general-purpose high-voltage energy storage and filtering. It combines a 450 V rated voltage with 680 µF capacitance and a ±20% tolerance to support applications that require significant bulk capacitance at elevated voltages.

Key value comes from its screw-terminal can package for robust connections, rated operating range up to +105°C, and a specified load life, delivering reliable performance where long-duration, high-voltage smoothing and ripple handling are required.

Key Features

• Rated Capacitance and Tolerance — 680 µF with ±20% tolerance (measured at 120 Hz, 20°C).
• High Voltage — Rated voltage 450 V, supporting high-voltage DC bus and filtering roles.
• Elevated Temperature Operation — Operating temperature range −25°C to +105°C for the 160–500 V category; suitable for high-temperature environments.
• Load Life Specification — Load life of 5,000 hours at +105°C; datasheet notes 2,000 hours for certain voltage ranges (10–250 V and 500 V) where applicable.
• Screw Terminal Package — Radial can with screw terminals for secure, low-resistance connection and easy installation in power assemblies.
• Ripple Current Capability — Rated ripple current of 4.4 A at 120 Hz and 6.16 A at 100 kHz, enabling effective AC ripple handling for power circuits.
• Leakage Current — Leakage current specified per datasheet: after 5 minutes’ application of rated voltage at 20°C, leakage current is limited per the datasheet formula (whichever is smaller as specified).
• Dimensions and Package — Can-type radial package with screw terminals; size L: 10 × D: 5.1 cm and height seated max 3.937 inch for board/layout planning.
• Standards Compliance — Compliant to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• General-purpose power supply filtering — Bulk energy storage and smoothing for high-voltage DC rails where 450 V and 680 µF are required.
• Industrial power electronics — Filtering and decoupling in industrial converters and inverters that demand elevated voltage handling and robust terminal connections.
• High-voltage energy storage — Use in systems that require high-voltage capacitance with sustained ripple current capability at elevated temperatures.

Unique Advantages

• High-voltage capability: 450 V rating enables use on elevated DC buses and in high-voltage power architectures.
• Robust screw-terminal connections: Screw terminals provide secure, low-impedance attachment for heavy-current leads and simplify assembly.
• Elevated temperature endurance: Rated for operation up to +105°C with a specified load life, supporting demanding thermal environments.
• Measured ripple performance: Explicit ripple current ratings at both low and high frequencies allow designers to size the capacitor for expected AC stress.
• RoHS compliance: Meets RoHS (2011/65/EU, (EU)2015/863) requirements for environmental conformity.

Why Choose LNT2W681MSEFBN?

The LNT2W681MSEFBN offers a balanced combination of high-voltage capacitance, screw-terminal reliability, and elevated-temperature endurance tailored for general-purpose power applications. Its specified ripple current ratings and load-life data provide designers with verifiable parameters for thermal and lifetime budgeting in high-voltage systems.

This part is well suited to engineers and procurement teams specifying robust bulk capacitors for assemblies that need a combination of 450 V capability, substantial capacitance, and reliable mechanical termination from a recognized manufacturer.

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