LGU2W121MELB

The LGU2W121MELB from Nichicon is a snap-in terminal aluminum electrolytic capacitor in the LGU series, rated for 450 V and 120 µF. It is a radial can, polarized device designed for general-purpose power applications that require high-voltage capability and elevated operating temperature.

Engineered to withstand demanding ripple conditions, this capacitor is specified for sustained operation at 105°C with a demonstrated endurance of 3000 hours under rated ripple current, delivering long-term stability for industrial and power-conversion designs.

Key Features

• High Voltage Rating — 450 V rated voltage suitable for high-voltage power and conversion circuits.
• Capacitance — 120 µF nominal capacitance with a tolerance of ±20% (120 Hz, 20°C).
• Snap-in Radial Can Package — Snap-in terminal mounting for secure board retention and straightforward through-hole assembly.
• Elevated Temperature Endurance — Specified operating range to 105°C and rated to withstand 3000 hours application of rated ripple current at 105°C.
• Ripple Current Ratings — 800 mA at 120 Hz and 1.144 A at 50 kHz, supporting AC ripple handling in power supply and filtering circuits.
• Polarized Design — Electrolytic (polar) construction for DC filtering and bulk energy storage.
• RoHS Compliant — Conforms to RoHS directive (2011/65/EU, (EU)2015/863).
• Compact Footprint — Physical dimension L: 2.5 × D: 3 cm for space-conscious through-hole layouts.

Typical Applications

• Industrial Power Supplies — Bulk smoothing and decoupling in high-voltage, high-temperature supply rails where 450 V capability and 105°C endurance are required.
• Power Conversion — Energy storage and ripple suppression in AC/DC and DC/DC converters operating at elevated temperatures.
• Motor Drives and Inverters — DC link smoothing and transient buffering in power electronics systems that demand reliable ripple handling.
• General-Purpose Electronic Equipment — Long-life filtering and energy storage in industrial controls and power distribution modules.

Unique Advantages

• High-voltage capability: 450 V rating lets designers use a single capacitor for higher-voltage sections, reducing part count.
• Proven high-temperature endurance: Rated to withstand 3000 hours of rated ripple current at 105°C, supporting reliable operation in hot environments.
• Robust ripple handling: Specified ripple current values at 120 Hz and 50 kHz provide clear performance expectations for filtering and smoothing designs.
• Secure board mounting: Snap-in terminals provide mechanical stability for through-hole assemblies in vibration-prone or heavy-assembly applications.
• Regulatory compliance: RoHS compliance simplifies environmental qualification for commercial and industrial products.

Why Choose LGU2W121MELB?

LGU2W121MELB combines high-voltage capability, robust ripple current ratings, and high-temperature endurance in a snap-in radial can, making it well suited for designers building reliable power supplies, converters, and industrial electronics. Its 450 V rating and 3000-hour endurance at 105°C provide predictable long-term performance for demanding environments.

Produced by Nichicon as part of the LGU series, this capacitor is a practical choice for applications that require polarized, general-purpose energy storage with clear specification limits and RoHS compliance.

Request a quote or submit an inquiry to discuss pricing, availability, and lead times for LGU2W121MELB.