LNR1A474MSEN

The LNR1A474MSEN is a screw‑terminal aluminum electrolytic capacitor from Nichicon’s LNR series, offering very large bulk capacitance in a robust radial can package. It is specified at 470000 µF (470 mF) with a 10 V rated voltage and ±20% tolerance, designed for general‑purpose applications that require substantial energy storage and high ripple handling.

Key electrical characteristics include a tangent of loss angle (tan δ) of 1.2 at 20°C/120 Hz, low‑frequency ripple current of 19.0 A (120 Hz) and high‑frequency ripple current of 21.85 A (100 kHz). The part is rated for -40°C to +85°C operation with a 5000 hour endurance at 85°C and is supplied in cardboard packing for volume use (status: mass production).

Key Features

• High Capacitance: 470000 µF (470 mF) provides substantial bulk energy storage in a single component for smoothing and decoupling in general‑purpose designs.
• Voltage Rating & Tolerance: Rated at 10 V with a capacitance tolerance of ±20% (measured at 120 Hz, 20°C), enabling predictable design margins.
• Screw Terminal Mounting: Robust radial can with screw‑type terminals for secure, high‑current connections and easy serviceability in power assemblies.
• Ripple Current Capability: 19.0 A at 120 Hz and 21.85 A at 100 kHz support high ripple environments and reduce thermal stress in continuous operation.
• Loss and Leakage Characteristics: Specified tan δ of 1.2 (20°C, 120 Hz) and leakage current listed at 5000 µA, allowing clear assessment of dissipation and standby losses.
• Operating Range & Endurance: Rated for -40°C to +85°C with a 5000 hour endurance at 85°C; series datasheet defines allowable capacitance, tan δ, and leakage limits after endurance and shelf‑life tests.
• Physical & Packaging: Body diameter φ63.5 × 120 mm length (L: 12.0 cm × D: 6.35 cm), radial can with screw terminals and supplied in cardboard packing for bulk handling.
• RoHS Compliant: Meets RoHS requirements as indicated in the product environmental data.

Typical Applications

• General Power Systems — Use where large bulk capacitance and high ripple current are required for energy storage and smoothing in general‑purpose power assemblies.
• Industrial Power Electronics — Suitable for applications that demand secure screw‑terminal connections and high ripple handling within the -40°C to +85°C operating range.
• High‑Energy Reservoirs — Appropriate for designs needing substantial capacitance in a single component to reduce component count and simplify layout in general‑purpose systems.

Unique Advantages

• Massive single‑component capacitance: 470000 µF reduces the need for paralleling multiple smaller capacitors, simplifying BOM and assembly.
• High ripple tolerance: 19.0 A (120 Hz) and 21.85 A (100 kHz) ratings allow the capacitor to handle significant AC stress without undue thermal rise when applied according to datasheet conditions.
• Durability in elevated temperatures: 5000 hour endurance at 85°C with defined limits on capacitance and tan δ supports predictable long‑term performance.
• Serviceable screw‑terminal design: Screw terminals provide reliable high‑current connections and facilitate installation and maintenance in industrial assemblies.
• Clear electrical specifications: Explicit listings for tan δ, leakage current, and tolerance enable accurate thermal and lifetime modeling during design.

Why Choose LNR1A474MSEN?

The LNR1A474MSEN combines very high bulk capacitance with robust screw‑terminal packaging and explicit ripple, loss, and endurance specifications—making it a practical choice for general‑purpose power designs that require reliable energy storage and secure high‑current connections. Its -40°C to +85°C operating range and 5000 hour life at 85°C offer a balance of performance and predictability for volume applications.

This part is well suited to engineers and procurement teams who need a documented, mass‑production component with large capacitance, defined electrical characteristics, and RoHS compliance—supporting straightforward integration into power and energy‑storage subsystems.

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