LGU2G331MELC

The LGU2G331MELC is a snap‑in terminal aluminum electrolytic capacitor designed for high‑voltage, high‑ripple applications. It delivers 330 µF at a 400 V rating with polarized snap‑in mounting in a φ35 × 30 mm can.

Built for industrial and power conversion environments, this part combines a 3000‑hour endurance at 105°C with high ripple current capability and low loss (tan δ = 0.15 at 20°C, 120 Hz), making it suited to systems that demand sustained performance under thermal and electrical stress.

Key Features

• High Voltage, High Capacitance: 330 µF nominal capacitance at a 400 V rated voltage for energy buffering and bulk smoothing in high‑voltage rails.
• Snap‑in Radial Package: φ35 × 30 mm radial can with snap‑in terminals for secure PCB mounting and mechanical robustness in power assemblies.
• Endurance at Elevated Temperature: Rated for 3000 hours at 105°C under rated ripple current, supporting long service life in hot operating environments.
• Low Loss Characteristics: Tangent of loss angle (tan δ) of 0.15 at 20°C and 120 Hz (specified for the 315–450 V range), helping reduce dissipation in AC ripple conditions.
• High Ripple Current Capacity: 1440 mA at 120 Hz (low frequency) and 2059.2 mA at 50 kHz (high frequency) to handle substantial AC stress in power conversion circuits.
• Leakage Current: Specified leakage current of 1080 µA, measurable after rated voltage application, for predictable stand‑by and no‑load behavior.
• Operating Temperature Range: −25°C to 105°C to accommodate a wide range of industrial temperature conditions.
• Regulatory Compliance and Packaging: RoHS compliant and supplied in tray packing for production‑friendly handling; part is in mass production status.

Typical Applications

• Industrial Power Supplies: Bulk energy storage and smoothing on high‑voltage DC rails where 400 V rating and high ripple handling are required.
• Motor Drives and Inverters: DC link and filtering roles that demand sustained ripple performance and thermal endurance at elevated temperatures.
• Uninterruptible Power Supplies (UPS): Energy buffering and decoupling in high‑voltage sections to support reliable power delivery during transient events.
• Renewable Energy Power Electronics: DC link and filter applications in converters where long life at high temperature and voltage is needed.

Unique Advantages

• High‑voltage capability: 400 V rating enables use on high‑voltage DC buses without series stacking.
• Designed for sustained ripple: High specified ripple currents at both low and high frequencies reduce thermal stress and extend system reliability.
• Proven thermal endurance: 3000 hours at 105°C under rated ripple current provides a defined lifetime metric for design planning.
• Predictable electrical loss: Low tan δ value at 120 Hz simplifies thermal budgeting and helps minimize internal heating under typical ripple conditions.
• Production‑ready packaging: Tray packing and mass production availability support consistent supply and streamlined assembly.
• RoHS compliance: Meets environmental requirements for lead‑free manufacturing and deployment.

Why Choose LGU2G331MELC?

The LGU2G331MELC positions itself as a durable, high‑voltage electrolytic solution for engineers designing power conversion and energy storage subsystems. Its combination of 400 V rating, substantial capacitance, defined thermal endurance, and high ripple current capability makes it appropriate for industrial power supplies, inverters, UPS systems, and similar applications where sustained electrical and thermal performance matters.

By offering predictable leakage, loss, and lifetime characteristics along with RoHS compliance and production‑friendly packaging, this part supports robust system design, easier sourcing, and long‑term operational planning backed by established series specifications.

Request a quote or contact sales to discuss volume options, lead times, and integration guidance for the LGU2G331MELC.