LNR1H474MSEB

The LNR1H474MSEB is a screw-terminal aluminum electrolytic capacitor from Nichicon’s LNR series designed for general-purpose power applications. It provides very high bulk capacitance (470,000 µF) at a 50 V rating in a robust radial can with screw terminals for secure, low-resistance connections.

Engineered for demanding ripple handling and long endurance, this part targets systems that require large energy storage and smoothing over extended operating periods. Key attributes include high ripple-current capability, a wide operating temperature range, and a 5,000 hour endurance at 85°C.

Key Features

• High Capacitance & Voltage — 470,000 µF nominal capacitance at a 50 V rating for substantial bulk energy storage in compact cylindrical form.
• Screw-Terminal Mounting — Radial can with screw terminals simplifies high-current connections and mechanical fastening for power modules and assemblies.
• High Ripple Current Capability — Low-frequency ripple current of 33.2 A (120 Hz) and high-frequency ripple current of 38.18 A (100 kHz) to support heavy AC ripple and reduce thermal stress during operation.
• Endurance and Stability — Rated for 5,000 hours at 85°C with specified post-endurance limits: capacitance change within ±15%, tan δ up to 175% of initial limit, and leakage current not exceeding initial specified value.
• Leakage and Loss Characteristics — Specified leakage current up to 5,000 µA and tan δ of 0.75, supporting predictable leakage and dissipation behavior under rated conditions.
• Wide Operating Range — Specified operating temperature from −40°C to +85°C suitable for typical industrial and general-purpose environments.
• Physical Size & Packaging — Large-form factor with body dimensions φ90 × 220 mm (L: 22 × D: 9 cm); supplied in cardboard packing for mass production handling.
• RoHS Compliant — Meets RoHS requirements as indicated in product environmental data.

Typical Applications

• Power Supply Bulk Storage — Provides large bulk capacitance for smoothing and energy buffering in general-purpose DC power supplies.
• DC Link and Power Conversion — Suited for DC link, inverter, and converter circuits where high ripple current capability and bulk energy are required.
• Backup and Hold-Up Energy — Used to store energy for short-term hold-up or transient support in systems requiring sustained voltage during interruptions.

Unique Advantages

• Substantial Energy Density: 470,000 µF at 50 V delivers significant stored energy for designs that need large capacitance in a single component.
• Robust Ripple Handling: 33.2 A @120 Hz and 38.18 A @100 kHz ripple ratings reduce internal heating and improve reliability under heavy AC stress.
• Proven Endurance: 5,000 hour rating at 85°C with defined post-test limits ensures long-term stability in continuous-duty applications.
• Secure Electrical Termination: Screw terminals provide reliable high-current connections and straightforward mechanical mounting for systems integration.
• Predictable Leakage and Dissipation: Defined leakage current (5,000 µA) and tan δ (0.75) allow precise thermal and power-loss planning in designs.
• Manufacturing-Ready Packaging: Cardboard packing and mass-production readiness simplify procurement and assembly for volume builds.

Why Choose LNR1H474MSEB?

The LNR1H474MSEB combines very high capacitance with a 50 V rating and screw-terminal construction to meet the needs of general-purpose power designs that demand large bulk energy storage and reliable ripple handling. Its 5,000 hour endurance at 85°C, defined post-endurance performance limits, and clear leakage/tan δ specifications help engineers design with predictable long-term behavior.

This capacitor is suitable for designers and procurement teams building power supplies, converters, and energy-buffering systems where a single high-capacitance component reduces BOM complexity and simplifies layout. RoHS compliance and production-ready packaging further support scalable manufacturing and regulatory alignment.

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