LNU2W682MSEHBN

The LNU2W682MSEHBN is a screw-terminal aluminum electrolytic capacitor in Nichicon’s LNU series, offering 6.8 mF (6800 µF) nominal capacitance at a 450 V DC rating. It is designed for industrial power systems requiring high-voltage bulk energy storage and robust performance under high ripple and rapid charge–discharge conditions.

Targeted use cases include inverter circuitry and regenerative power circuits for AC servomotors and general inverters. Key value propositions include high-voltage capability with a compact form factor, extended high-temperature endurance, and strong ripple-current handling.

Key Features

• Capacitance & Rated Voltage: 6.8 mF (6800 µF) nominal capacitance with a 450 V DC rated voltage; capacitance tolerance ±20% (120 Hz, 20°C).
• High-Temperature Endurance: Operating temperature range −40°C to +105°C with a load life of 5000 hours at 105°C under rated ripple current.
• High Ripple-Current Capability: Ripple current ratings of 23.4 A at 120 Hz and 32.76 A at 10 kHz support high-frequency and regenerative loads.
• Screw Terminal Mounting: Radial can package with screw terminals (nominal bolt M5) for secure, high-current connections and straightforward installation.
• High-Voltage, Compact Design: Part of an LNU series rated up to DC525 V and described as “High Voltage / Smaller sized than LNT,” enabling high-voltage designs with reduced footprint.
• Leakage and Insulation Characteristics: Leakage current specified as not more than 3√CV (µA) or 5 mA (whichever is smaller) after 5 minutes at 20°C; insulation resistance more than 100 MΩ at DC 500 V between terminal and bracket.
• Dielectric Withstand & Durability Tests: Voltage proof test of AC 2500 V for 1 minute between terminal and bracket; endurance includes charge–discharge behavior tested for 50 million cycles at 3 Hz.
• RoHS Compliance: Compliant with the RoHS directive (2011/65/EU,(EU)2015/863).

Typical Applications

• Industrial Inverters & Power Supplies: Bulk energy storage and smoothing for inverter circuitry in industrial power systems.
• AC Servomotor Regenerative Circuits: Handles high-frequency regenerative voltages typical in servo drives and motor-control feedback loops.
• High-Frequency Power Electronics: Suited for applications requiring high ripple-current performance and rapid charge–discharge capability.
• General Industrial Power Storage: Energy buffering and transient suppression in heavy-duty industrial equipment and power conversion modules.

Unique Advantages

• High-Voltage Capability: 450 V rating, with the LNU series supporting up to DC525 V, enabling higher DC-bus applications.
• Robust Ripple Handling: Specified ripple-current ratings at both 120 Hz and 10 kHz reduce stress under AC and high-frequency conditions.
• Extended High-Temperature Life: 5000-hour load life at 105°C under rated ripple current for sustained operation in elevated-temperature environments.
• Secure, Serviceable Connections: Screw-terminal (M5) package provides reliable high-current terminations and simplifies replacement or maintenance.
• Compact High-Voltage Form Factor: LNU series offers a smaller footprint compared to legacy LNT parts while maintaining high-voltage performance.
• Tested Electrical Safety Margins: Insulation resistance >100 MΩ and AC 2500 V dielectric test between terminal and bracket support safe integration into power systems.

Why Choose LNU2W682MSEHBN?

LNU2W682MSEHBN combines high nominal capacitance with a 450 V rating and robust ripple-current capability, delivering reliable bulk energy storage for industrial inverter and regenerative applications. Its rated operation to 105°C with a 5000-hour load-life profile addresses long-term durability requirements in demanding thermal environments.

This screw-terminal radial can is well suited to engineers and procurement teams designing high-voltage power supplies, motor-drive regenerative circuits, and other industrial power electronics where secure connections, tested dielectric performance, and RoHS compliance are required.

Request a quote or contact sales to discuss availability, lead times, and technical details for integrating LNU2W682MSEHBN into your next design.