LGX2W331MELC35

The LGX2W331MELC35 is a snap-in terminal aluminum electrolytic capacitor designed for high-voltage power electronics. It delivers 330 µF at a 450 V rating in a smaller-sized snap-in can (φ35 × 35L), optimized for applications that require robust filtering and energy storage in compact assemblies.

Engineered for long-life performance, this part is specified for operation from -25°C to +105°C with a 5000-hour endurance at 105°C, making it well suited to rectifier circuits in inverters and switching power supplies as well as other general-purpose power applications.

Key Features

• Capacitance & Voltage — 330 µF nominal capacitance with a 450 V rated voltage providing substantial energy storage for high-voltage DC rails.
• Long-life High-Temperature Endurance — Rated for 5000 hours at 105°C when subjected to rated ripple current and DC bias; capacitance change is specified to remain within ±20% after endurance testing.
• Temperature Range — Operating temperature range from -25°C to +105°C to support elevated thermal environments.
• Ripple Current Capability — Specified ripple current of 1.39 A at 120 Hz and 1.988 A at 50 kHz for handling AC ripple in power conversion circuits.
• Low-temperature Stability — Impedance ratio Z(-25°C)/Z(+20°C) specified up to 8 for rated voltages in the 400–500 V range, supporting operation at low ambient temperatures.
• Loss and Leakage Characteristics — tan δ maximum of 0.20 at 120 Hz (for 450–500 V range) and leakage current governed by I ≤ 3√CV (µA) after 5 minutes at 20°C.
• Package and Mounting — Snap-in radial can (φ35 × 35L) for secure panel or chassis mounting and easy installation in power assemblies.
• Polarized Electrolytic — Polarized device for DC filtering and energy-storage applications.
• Environmental Compliance — RoHS compliant per the provided product data.

Typical Applications

• Switching Power Supplies — Bulk filtering and smoothing of DC rails where high-voltage capacitance and ripple handling are required.
• Inverter Rectifier Circuits — Energy storage and smoothing for rectifier stages in general inverter systems.
• Industrial Power Conversion — Supporting high-voltage DC link and filter functions in industrial converters and power modules.

Unique Advantages

• High-Voltage Rating: 450 V nominal rating enables use in high-voltage power rails without series stacking.
• Proven High-Temperature Life: 5000-hour endurance at 105°C assures predictable performance under sustained thermal stress, reducing maintenance cycles.
• Compact Snap-In Form Factor: Smaller-sized φ35 × 35L snap-in can balances board-space efficiency with robust mounting for power assemblies.
• Defined Ripple Performance: Published ripple current values at both low and high frequencies support reliable selection for specific switching frequencies and smoothing requirements.
• Measured Low-Temperature Behavior: Specified impedance stability down to -25°C helps designers predict start-up and cold-condition performance.
• RoHS Compliance: Meets environmental regulatory requirements for modern electronics manufacturing.

Why Choose LGX2W331MELC35?

The LGX2W331MELC35 combines a high 450 V rating with 330 µF capacitance in a compact snap-in aluminum electrolytic package, offering a balance of energy density and mechanical robustness for power-electronics designs. Its 5000-hour endurance at 105°C and defined ripple-current specifications make it a practical choice for designers needing reliable bulk filtering and smoothing in inverters and switching power supplies.

Manufactured by Nichicon and RoHS compliant, this capacitor is positioned for engineers and procurement teams building industrial and general-purpose power systems that require predictable long-term performance and clear, verifiable specifications.

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