LGNW6471MELC40

The LGNW6471MELC40 is a snap‑in terminal aluminum electrolytic capacitor from Nichicon’s LGN series, offering 470 µF capacitance at a 420 V rating. It is designed for general‑purpose electronic equipment that requires high voltage handling, substantial ripple current capacity, and extended endurance at elevated temperatures.

Key value comes from its combination of a high 420 V rating, robust ripple current capability at both low and high frequencies, and a long endurance specification — helping designs maintain stability and reliability in demanding power applications.

Key Features

• Capacitance & Voltage: 470 µF nominal capacitance with a 420 V rated voltage and ±20% tolerance, suitable where high DC voltage energy storage is required.
• High Ripple Current Capability: 1.86 A at 120 Hz (low frequency) and 2.66 A at 100 kHz (high frequency), enabling effective smoothing and decoupling under substantial AC components.
• Long Endurance at Elevated Temperature: Rated for 3000 hours at 105°C under D.C. bias plus rated ripple current, supporting sustained operation in high‑temperature environments.
• Operating Temperature Range: Specified for −25°C to +105°C, covering a broad range of general‑purpose operating conditions.
• Leakage Current: Specified leakage current of 1330 µA after rated voltage application, allowing predictable bias behavior in designs.
• Package & Mounting: Radial can with snap‑in terminals (snap‑in mounting) in a φ35 × 40 mm case size, provided in tray packing for production handling.
• Regulatory: RoHS compliant.

Typical Applications

• General Purpose Power Filtering — Bulk smoothing and decoupling in high‑voltage power supplies and power conversion stages.
• High‑Voltage Energy Storage — Local energy buffering where 420 V rating and 470 µF capacitance meet board‑level energy demands.
• Industrial Electronics — Use in general industrial equipment that requires long life at elevated temperatures and reliable ripple handling.

Unique Advantages

• High Voltage with Generous Capacitance: 420 V rating combined with 470 µF provides substantial DC energy storage in a single component, simplifying designs that need high‑voltage bulk capacitance.
• Dual‑Frequency Ripple Performance: Explicit ripple current ratings at 120 Hz and 100 kHz help designers verify thermal and ripple handling across common operating frequencies.
• Extended High‑Temperature Endurance: 3000 hours at 105°C under rated conditions delivers predictable long‑term performance in thermally demanding environments.
• Snap‑In Mounting for Secure Board Attachment: Snap‑in terminals provide robust mechanical retention for applications with vibration or handling considerations.
• Tray Packing for Production: Supplied in tray packing to support volume assembly and streamlined handling during manufacturing.
• RoHS Compliance: Meets requirements for restricted substances, simplifying regulatory considerations for assemblies.

Why Choose LGNW6471MELC40?

The LGNW6471MELC40 positions itself as a high‑voltage, long‑life aluminum electrolytic solution for general‑purpose electronic designs that demand reliable bulk capacitance and strong ripple current handling. Its 420 V rating, 470 µF capacitance, and 3000‑hour endurance at 105°C make it suitable for designers prioritizing sustained performance in elevated temperature or heavy‑ripple environments.

Produced by Nichicon within the LGN series and provided in a compact φ35 × 40 mm snap‑in package, this part suits volume production needs and offers predictable electrical characteristics that simplify component selection and system qualification.

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