LGG2W391MELC35

The LGG2W391MELC35 is a snap‑in terminal aluminum electrolytic capacitor from Nichicon’s LGG series, engineered for compact, high‑voltage power applications. It delivers 390 µF capacitance at a 450 V rating in a φ35 × 35 mm can designed for snap‑in mounting and equipment downsizing.

This part targets general‑purpose power electronics where high voltage handling, compact form factor and robust thermal endurance are required. Key value drivers include high ripple current capability across low and high frequencies and rated endurance at elevated temperature.

Key Features

• Capacitance & Voltage — 390 µF nominal capacitance with a 450 V rated voltage and ±20% tolerance, suitable for high‑voltage DC bus and energy storage duties.
• High‑Temperature Endurance — Rated life of 2000 hours at 105°C when subjected to DC bias plus rated ripple current, supporting sustained operation in hot environments.
• Dual‑Frequency Ripple Capability — Low frequency ripple current of 1.38 A (120 Hz) and high frequency ripple current of 1.973 A (100 kHz), enabling use in both mains‑frequency and switching applications.
• Leakage and Loss Characteristics — Specified leakage current of 1250 µA and tan δ (DF) max 0.20 measured at 20°C, 120 Hz, for predictable loss and self‑heating behavior.
• Compact Snap‑In Package — Radial can, snap‑in mounting type in a φ35 × 35 mm case to support compact PCB layouts and automated assembly (tray packing).
• Operating Temperature Range — Specified for −25°C to 105°C, providing a wide operating envelope for industrial and power electronics applications.
• RoHS Compliant — Built to comply with RoHS requirements for environmental regulatory conformity.

Typical Applications

• Power Supplies — Bulk smoothing and DC bus energy storage for high‑voltage power supply stages where 450 V rating and high ripple handling are required.
• Industrial Inverters and Drives — DC link and smoothing applications in inverter and motor drive systems that demand sustained performance at elevated temperatures.
• SMPS and Power Conversion — Filtering and energy buffering in high‑voltage switching power converters benefiting from both low‑ and high‑frequency ripple capability.

Unique Advantages

• High‑Voltage Capability: 450 V rating enables use in high‑voltage DC applications without series stacks, simplifying designs.
• Compact, Snap‑In Form Factor: φ35 × 35 mm snap‑in can supports equipment downsizing and reliable mechanical mounting for automated assembly.
• Broad Ripple Performance: Defined ripple current values at 120 Hz and 100 kHz allow designers to quantify thermal rise and loss across both mains and switching domains.
• Thermal Endurance: 2000‑hour life at 105°C under rated conditions provides design margin for sustained high‑temperature operation.
• Predictable Leakage and Loss: Specified leakage current and tan δ (DF) enable engineering of power loss, standby behavior, and safety margins.
• Regulatory Compliance: RoHS compliance supports use in products requiring restricted‑substance conformity.

Why Choose LGG2W391MELC35?

The LGG2W391MELC35 positions itself as a compact, high‑voltage electrolytic solution for designers needing reliable energy storage and ripple tolerance in constrained mechanical envelopes. Its combination of 390 µF at 450 V, dual‑frequency ripple specifications, and a 2000‑hour endurance rating at 105°C make it well suited to demanding power conversion, DC link and industrial applications.

This part is aimed at engineering teams and procurement sourcing components for robust, long‑life power systems where predictable electrical characteristics, snap‑in mounting, and RoHS compliance are important for manufacturability and regulatory alignment.

If you’d like a quote or need detailed ordering information for LGG2W391MELC35, submit an inquiry or request a price and availability quote from the supplier. Technical and ordering assistance is available to support your design and production planning.