LNR1H684MSEN

The LNR1H684MSEN from Nichicon is a screw-terminal aluminum electrolytic capacitor rated at 680,000 µF (680 mF) and 50 V. It is part of the LNR series of φ100 screw-terminal capacitors designed for applications that require very high bulk capacitance with robust, field-serviceable connections.

Key value propositions include very high capacitance for bulk energy storage, rated ripple current handling, and long-term endurance at elevated temperature — supplied in mass-production cardboard packing.

Key Features

• High Capacitance & Voltage — 680,000 µF nominal capacitance at a rated voltage of 50 V for substantial bulk energy storage.
• Screw-Terminal Mounting — Radial can with screw terminals provides secure, serviceable electrical connections and uses M8 nominal bolts for the φ100 size.
• Rated Ripple Current — 36 A at 120 Hz and 41.4 A at 100 kHz, enabling significant AC current handling for power applications.
• Endurance — Specified for 5,000 hours at 85°C with DC bias plus rated ripple current; after endurance testing, capacitance change is within ±15%, tan δ remains ≤175% of initial specified value, and leakage current stays at or below the initial specified value.
• Operating Temperature — Rated for –40°C to +85°C (applicable for 10 to 100 V range per series specifications), supporting a wide ambient range for general-purpose use.
• Leakage Current Specification — After 5 minutes at rated voltage, leakage current is specified as not more than 3√CV (µA) or 5 mA, whichever is smaller (C: µF, V: V).
• Capacitance Tolerance & Polarization — ±20% tolerance at 120 Hz, 20°C; polarized electrolytic construction.
• Physical Size & Packaging — Body dimension indicated as φ100 × 250L (L:25 cm × D:10 cm); supplied in cardboard packing for mass production handling.
• Environmental Compliance — RoHS compliant as stated in product data.

Typical Applications

• General-Purpose Power Systems — Bulk energy storage and smoothing where very large capacitance and secure screw-terminal connections are required.
• Power Electronics Modules — DC link and filtering applications that need high ripple current capability and long endurance at elevated temperature.
• Industrial Equipment — Systems that benefit from high-capacitance, serviceable terminals and the endurance characteristics specified for 85°C operation.

Unique Advantages

• Substantial Bulk Capacitance: 680,000 µF provides large energy reserve for smoothing and hold-up tasks.
• High Ripple Handling: Rated ripple currents of 36 A (120 Hz) and 41.4 A (100 kHz) support demanding AC stress in power circuits.
• Long Endurance at 85°C: 5,000 hours endurance rating with defined limits for capacitance change, tan δ, and leakage current ensures predictable aging behavior.
• Secure, Serviceable Connections: Screw-terminal package with M8 nominal bolt for φ100 size simplifies installation and field maintenance.
• Clear Electrical Limits: Leakage current defined as 3√CV (µA) or 5 mA after 5 minutes at rated voltage provides measurable acceptance criteria.
• RoHS Compliant: Meets referenced environmental restriction requirements noted in product data.

Why Choose LNR1H684MSEN?

The LNR1H684MSEN is positioned for designs that require very high bulk capacitance combined with robust screw-terminal connections and defined high-temperature endurance. Its 50 V rating, large form factor (φ100 × 250L), and measured ripple current capabilities make it suitable for applications where reliable energy storage and predictable life performance at 85°C are important.

This product is appropriate for engineers and procurement teams specifying general-purpose high-capacitance electrolytic solutions in power electronics, industrial systems, and other environments that benefit from serviceable terminal connections and RoHS compliance. Nichicon’s LNR series specifications provide clear electrical and endurance limits to support design validation and lifecycle planning.

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