LGX2W471MELC45

The LGX2W471MELC45 is an aluminum electrolytic capacitor in a snap-in terminal radial can designed for high-voltage, long-life power applications. It is part of Nichicon’s LGX long-life series and is engineered for use in rectifier circuits for general inverters and in switching power supplies.

This component delivers 470 µF at 450 V with a compact footprint (L: 4.5 × D: 3.5 cm) and snap-in mounting, offering a combination of high-voltage energy storage and durable operation up to 105°C for extended service life.

Key Features

• Core Electrical Performance 470 µF capacitance with a 450 V rated voltage and ±20% tolerance, providing high-voltage energy storage for DC bus and rectifier applications.
• Long-Life Endurance Designed to withstand 5000 hours of rated ripple current at 105°C under DC bias; after endurance testing, capacitance remains within ±20% of initial value.
• Thermal Range Operates across −25°C to +105°C, supporting elevated-temperature environments common in power electronics.
• Ripple Current Capability Specified ripple current: 1.83 A at 120 Hz and 2.617 A at 50 kHz, enabling use with a range of switching frequencies.
• Electrical Characteristics and Stability Leakage current meets I ≤ 3√CV (µA) after 5 minutes at 20°C; tan δ max 0.20 for 450 V parts and a low-temperature impedance ratio (Z−25°C / Z+20°C) of 8 for 400–500 V range.
• Package & Mounting Radial, snap-in can package (polarized) with compact dimensions L: 4.5 × D: 3.5 cm for panel or PCB snap-in mounting and clear polarity marking on the sleeve.
• Regulatory Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Rectifier circuits for general inverters — Energy storage and smoothing in inverter rectifier stages where high-voltage capacitance and long life are required.
• Switching power supplies — Bulk filtering and DC bus stabilization in high-voltage switching supplies.
• General-purpose high-voltage filtering — Use where polarized, high-capacitance, long-life components are needed for power conversion modules.

Unique Advantages

• Long operational life at elevated temperature — Rated to endure 5000 hours at 105°C under rated ripple current, reducing replacement frequency in high-temperature power assemblies.
• High-voltage capability — 450 V rating supports higher DC bus voltages common in industrial inverters and power supplies.
• Frequency-flexible ripple performance — Specified ripple current at both 120 Hz and 50 kHz accommodates legacy rectifier applications and modern switching frequencies.
• Compact snap-in form factor — Radial snap-in can with a 4.5 × 3.5 cm footprint simplifies PCB anchoring and mechanical mounting in power cabinets and modules.
• Stable electrical behavior — Leakage current limit and defined tan δ and impedance ratios provide predictable performance across temperature and over life.
• RoHS compliance — Meets RoHS directive requirements for use in regulated assemblies.

Why Choose LGX2W471MELC45?

LGX2W471MELC45 is positioned for engineers designing high-voltage power subsystems who need durable, long-life capacitance in a snap-in package. Its 470 µF/450 V specification, combined with endurance at 105°C and defined ripple ratings, makes it suitable for rectifier and switching power applications that demand predictable aging and thermal robustness.

As part of Nichicon’s LGX long-life series, the part offers verifiable endurance characteristics and electrical limits (leakage current, tan δ, impedance ratios, and shelf-life behavior) that support reliable long-term operation in power-conversion designs.

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