LGU2W271MELC

The LGU2W271MELC is a snap-in terminal, aluminum electrolytic capacitor from Nichicon’s LGU series designed for general-purpose power applications. It delivers a 270 µF capacitance at a 450 V rating in a radial, snap-in can package.

Engineered for high-temperature endurance, this part withstands 3000 hours of rated ripple current at 105°C and is specified for operation from −25°C to +105°C. It is RoHS compliant for restricted-substance requirements.

Key Features

• Capacitance & Voltage — 270 µF nominal capacitance with a 450 V rated voltage and ±20% tolerance at 120 Hz, 20°C.
• Snap-in radial can package — Snap-in terminal type provides secure mounting for power assemblies; package dimensions L: 3.5 × D: 3.5 cm with radial, can-style housing.
• High-temperature endurance — Endurance specified as 3000 hours at 105°C with D.C. bias plus rated ripple current; capacitance change remains within ±20% after test.
• Operating temperature — Rated for −25°C to +105°C for 315–450 V class devices.
• Ripple current capability — Rated ripple current of 1.28 A at 120 Hz and 1.83 A at 50 kHz for this part.
• Loss characteristics — Dissipation factor (tan δ) specified with a maximum of 0.20 for 450 V at 120 Hz, 20°C.
• Polarized device — Electrolytic capacitor with standard polarity; suitable for circuits that accommodate polarized capacitors.
• RoHS compliant — Conforms to RoHS directive (2011/65/EU, (EU)2015/863).
• Shelf-life and reliability — Shelf life specification: after 1000 hours at 105°C and voltage treatment per JIS C 5101-4, capacitance remains within ±15% of initial value.

Typical Applications

• General-purpose power electronics — Bulk energy storage and smoothing in assemblies that require a high-voltage, high-temperature electrolytic solution.
• Power supply filtering — Filtering and decoupling where a 450 V rated capacitor and robust ripple performance are required.
• Industrial equipment — Power modules and industrial circuits that benefit from snap-in mounting and extended high-temperature endurance.

Unique Advantages

• High-voltage capability: 450 V rating enables use in higher-voltage power circuits without series stacking.
• Long high-temperature endurance: Specified to withstand 3000 hours at 105°C with rated ripple, supporting durable operation in hot environments.
• Measured ripple performance: Rated ripple currents of 1.28 A (120 Hz) and 1.83 A (50 kHz) provide predictable thermal and lifetime behavior under AC stress.
• Secure snap-in mounting: Snap-in terminal and radial can package simplify assembly and mechanical retention in power racks and PCBs.
• RoHS compliance: Meets current restricted-substance requirements for regulatory and environmental considerations.

Why Choose LGU2W271MELC?

LGU2W271MELC combines a high 450 V rating with 270 µF capacitance, robust ripple handling, and a snap-in radial package to address general-purpose power applications that demand long-term high-temperature performance. Its endurance specification of 3000 hours at 105°C and defined ripple current ratings make it a reliable choice for designers specifying components for sustained thermal and electrical stress.

This capacitor is well suited to engineers and procurement teams specifying high-voltage electrolytics for power supplies, industrial power modules, and general-purpose assemblies where RoHS compliance and predictable lifetime characteristics are required.

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