LGU2G331MELB

The LGU2G331MELB is a snap-in, radial can aluminum electrolytic capacitor designed for general-purpose power applications. It combines a 330 µF capacitance with a 400 V rated voltage and snap-in terminals for robust mechanical mounting in high-voltage assemblies.

Engineered for sustained operation at elevated temperatures, this capacitor is specified for operation to 105°C and is endurance-rated for 3,000 hours under rated ripple current, offering predictable long-term performance in demanding power environments.

Key Features

• Capacitance & Tolerance — 330 µF nominal with a tolerance of −20% to +20% (±20% at 120 Hz, 20°C), suitable for bulk energy storage and decoupling in high-voltage circuits.
• High Rated Voltage — 400 V rating for use where elevated DC voltage handling is required.
• Snap-In Radial Can — Snap-in terminal mounting and radial can package (φ30 × 40 mm) for secure installation in power racks and chassis assemblies.
• High-Temperature Endurance — Rated for continuous operation up to 105°C with a 3,000 hour endurance specification when subjected to D.C. bias plus rated ripple current at 105°C.
• Ripple Current Capability — Low-frequency ripple current of 1.44 A at 120 Hz and high-frequency ripple current of 2.0592 A at 50 kHz, enabling effective ripple handling across a range of switching frequencies.
• Leakage and Dissipation — Specified leakage current of 1,080 µA (after application of rated voltage) and tan δ (loss tangent) of 0.15 measured at 120 Hz, 20°C for 160–420 V range.
• Operating Temperature Range — −25°C to +105°C (for 315 to 450 V products), matching the series’ high-voltage temperature specification.
• Packaging & Production — Tray packing and mass production status for volume manufacturing and assembly workflows.
• RoHS Compliant — Manufactured in compliance with RoHS requirements.

Typical Applications

• General-purpose power circuits — Bulk smoothing and energy storage where a 400 V electrolytic capacitor with snap-in mounting is required.
• Power supplies and converters — Filtering and ripple attenuation in high-voltage DC rails, supported by specified ripple current ratings and high-temperature endurance.
• Industrial power equipment — High-voltage assemblies operating up to 105°C that require durable capacitors rated for extended life under ripple load.

Unique Advantages

• High-voltage capability: 400 V rating lets designers handle elevated DC bus voltages without series stacking.
• Long thermal endurance: 3,000 hour life at 105°C under rated ripple current provides predictable aging and maintenance planning.
• Broad ripple performance: Measured ripple current values at 120 Hz and 50 kHz support both low-frequency and high-frequency smoothing requirements.
• Snap-in mechanical stability: Snap-in radial can construction simplifies secure board or chassis mounting in power assemblies.
• Production-ready packaging: Tray packing and mass-production status streamline procurement and assembly for volume programs.
• Regulatory compliance: RoHS compliance supports environmentally regulated deployments.

Why Choose LGU2G331MELB?

The LGU2G331MELB positions itself as a durable, high-voltage aluminum electrolytic solution for designers needing reliable bulk capacitance, robust ripple handling, and long-term operation at elevated temperatures. Its 400 V rating, specified ripple current performance, and 3,000 hour endurance at 105°C make it suitable for power systems and industrial equipment that require predictable behavior under continuous load.

This part is well suited to engineers and procurement teams seeking a mass-production-ready, RoHS-compliant snap-in capacitor for general-purpose high-voltage applications where mechanical stability and thermal endurance are key selection criteria.

Request a quote or submit an inquiry to discuss availability, pricing, and lead times for the LGU2G331MELB. Our sales team can provide volume pricing and support documentation tailored to your project requirements.