LGNW6331MELC30

The LGNW6331MELC30 is a 330 µF, 420 V aluminum electrolytic capacitor from Nichicon’s LGN series. It uses a snap-in radial can package optimized for general-purpose power applications that require a high-voltage polarized capacitor with extended high-temperature endurance.

Designed for continuous operation up to 105°C, this component delivers long-duration ripple-current capability and a smaller case size (one rank smaller than LGU), making it suitable for space-conscious power assemblies that must meet RoHS environmental requirements.

Key Features

• Capacitance and Voltage — 330 µF nominal capacitance rated at 420 V for high-voltage DC applications.
• High-temperature Endurance — Endurance specified as 3000 hours at 105°C under D.C. bias plus rated ripple current (as defined in the LGN series datasheet).
• Ripple Current Capability — Rated ripple current of 1.42 A at 120 Hz and 2.031 A at 100 kHz to support sustained ripple handling in power circuits.
• Package and Mounting — Snap-in, radial can (snap-in terminal type) for secure board retention and straightforward assembly in power modules.
• Operating Temperature Range — Specified for operation from −25 °C to 105 °C for the 350–600 V category.
• Tolerance and Polarization — Capacitance tolerance ±20% with standard polarized construction.
• Compact Footprint — One rank smaller case size than LGU; physical size L: 3 × D: 3.5 cm for space-conscious layouts.
• Regulatory — Compliant with RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial Power Supplies — General-purpose high-voltage filtering and energy smoothing where 420 V, 330 µF and elevated temperature endurance are required.
• Commercial Power Conversion — Bulk capacitance in AC–DC and DC–DC converters that operate at elevated temperatures and require sustained ripple handling.
• Energy Storage and Filtering — Local energy reservoir and ripple attenuation in assemblies that benefit from a snap-in radial can for secure mounting.

Unique Advantages

• Long-duration high-temperature reliability: Specified to withstand 3000 hours of rated ripple current at 105 °C, demonstrating sustained performance in hot environments.
• High-voltage capability: 420 V rating supports applications requiring elevated DC voltage handling within the LGN series range.
• Robust ripple performance: Dual-frequency ripple ratings (1.42 A at 120 Hz and 2.031 A at 100 kHz) provide quantifiable ripple-handling across common power frequencies.
• Space-efficient form factor: One rank smaller case than LGU and compact dimensions (L: 3 × D: 3.5 cm) help reduce board area in constrained layouts.
• RoHS compliance: Meets current RoHS directive requirements for environmentally regulated designs.

Why Choose LGNW6331MELC30?

LGNW6331MELC30 combines a high-voltage 420 V rating with 330 µF capacitance in a snap-in radial can engineered for continuous operation up to 105 °C. Its endurance specification of 3000 hours at 105 °C under rated ripple current, along with defined ripple ratings at 120 Hz and 100 kHz, provides quantifiable performance for designers balancing reliability and board space.

This part is well suited for engineers specifying general-purpose high-voltage bulk capacitance in power supplies, converters, and filtering circuits that require RoHS compliance and a compact snap-in package. Its documented endurance and electrical ratings support predictable long-term behavior in demanding thermal and ripple conditions.

Request a quote or submit a design inquiry to evaluate LGNW6331MELC30 for your project and receive pricing and availability information from our sales team.