LNR1A684MSEB

The LNR1A684MSEB is a screw‑terminal aluminum electrolytic capacitor from Nichicon’s LNR series, designed for high-capacitance, general‑purpose DC energy storage and smoothing. This radial can with screw terminals delivers 680,000 µF at a 10 V rating and is targeted at applications that require large bulk capacitance, high ripple handling and robust long‑term endurance.

Key value propositions include very high capacitance in a screw‑terminal package, high allowable ripple current at both low and high frequencies, and a rated operating range from −40°C to +85°C with a 5,000‑hour endurance at 85°C under rated conditions.

Key Features

• Very high capacitance: 680,000 µF (680 mF) nominal capacitance for bulk energy storage and smoothing.
• Rated voltage and tolerance: 10 V rated with ±20% capacitance tolerance (120 Hz, 20°C).
• Screw terminal, radial can package: Screw terminal mounting for secure electrical and mechanical connections; standard radial can form factor with cardboard packing.
• Low-frequency and high-frequency ripple capability: Rated ripple current 22.8 A at 120 Hz and 26.22 A at 100 kHz to support both mains‑frequency and high‑frequency ripple conditions.
• Loss characteristics: Tangent of loss angle (tan δ) = 1.6 measured at 20°C, 120 Hz; equivalent series resistance listed as 1.6 mΩ at 120 Hz.
• Leakage current: Leakage current specified at 5,000 µA (5 mA) after 5 minutes’ application of rated voltage (20°C).
• Operating temperature and endurance: Rated for −40°C to +85°C with a lifetime/endurance rating of 5,000 hours at 85°C when DC bias plus rated ripple current is applied.
• Mechanical dimensions and mounting hardware: Body diameter φ76.2 mm × length 120 mm (L: 12 cm × D: 7.62 cm). For φ51 and larger bodies a 3‑leg mounting bracket is furnished as standard; nominal bolt diameter for φ76.2 is M5.

Typical Applications

• Power supply bulk smoothing: Large bulk capacitance for DC link smoothing and hold‑up in power conversion and distribution systems.
• Energy storage and buffering: Bulk energy reservoir for systems requiring high capacitance and high ripple handling at both low and high frequencies.
• Industrial electronics: Use in industrial controllers and power modules where screw‑terminal connections and long endurance at elevated temperature are required.

Unique Advantages

• High energy density in a serviceable package: 680,000 µF in a screw‑terminal radial can enables large capacitance without complex assembly changes.
• Dual-frequency ripple capability: Rated ripple current specified at 120 Hz and 100 kHz supports designs facing both line‑frequency and high‑frequency switching ripple.
• Robust endurance specifications: 5,000‑hour life at 85°C with defined post‑test limits (capacitance within ±15%, tan δ ≤175% of initial spec, leakage ≤ initial value) helps predict long‑term performance.
• Mechanical mounting options for larger diameters: Standard 3‑leg bracket for φ76.2 bodies and M5 bolt compatibility simplify secure installation.
• Clear electrical loss metrics: Both tan δ (1.6 at 20°C, 120 Hz) and ESR (1.6 mΩ at 120 Hz) are specified for engineering tradeoffs in thermal and ripple loss calculations.

Why Choose LNR1A684MSEB?

The LNR1A684MSEB positions itself as a high‑capacitance, screw‑terminal solution for engineering designs that require large bulk capacitance, predictable ripple handling, and a defined endurance at elevated temperature. Its combination of 680,000 µF capacity, explicit ripple current ratings at both low and high frequencies, and mechanical provisions for secure mounting make it suitable for industrial power systems and other general‑purpose applications needing stable long‑term DC energy storage.

Engineers and procurement teams choosing LNR1A684MSEB gain a component with well‑documented electrical and mechanical characteristics—facilitating thermal, ripple, and mechanical integration decisions and supporting reliable operation over the component’s rated lifetime.

If you would like pricing or delivery information, request a quote or submit a quotation request and our team will respond with current availability and lead‑time details.