LGX2G221MELZ45

The LGX2G221MELZ45 is a snap-in terminal type aluminum electrolytic capacitor from Nichicon’s LGX series. It delivers 220 µF capacitance at a 400 V rating in a radial, can-style snap-in package designed for power-electronics use.

Designed for rectifier circuits in general inverters and switching power supplies, this part emphasizes long-life reliability with specified endurance under rated ripple current at elevated temperature, and RoHS compliance for environmental requirements.

Key Features

• Capacitance & Voltage — 220 µF at 400 V rated voltage, with capacitance tolerance ±20% (measured at 120 Hz, 20°C).
• Snap‑in Radial Package — Snap-in terminal type in a radial can package for secure board mounting and robust mechanical retention.
• Long‑life Endurance — Specified to withstand 5000 hours of application of rated ripple current at 105°C; after endurance test and recovery to 20°C, capacitance change is within ±20% per the datasheet.
• Operating Temperature — Rated for operation from −25°C to +105°C for broad thermal use in power systems.
• Ripple Current Performance — Rated ripple current 1.09 A at 120 Hz and 1.559 A at 50 kHz, supporting smoothing and filtering under AC ripple conditions.
• Loss Angle (tan δ) — Specified maximum tan δ of 0.15 at 120 Hz and 20°C for the 200–400 V range, indicating controlled loss characteristics.
• Leakage Current — Leakage current specification follows I ≤ 3√(C·V) (µA) after 5 minutes at 20°C, per datasheet test condition.
• Polarized — Polarized electrolytic construction for DC filtering and energy storage in power circuits.
• Compact Size — Physical size L: 4.5 × D: 2.2 cm for space-conscious power designs.
• RoHS Compliant — Conforms to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• General Inverter Rectifiers — Used for smoothing and energy buffering in rectifier circuits of general inverter designs.
• Switching Power Supplies — Bulk filtering and ripple handling in switching power supply outputs and intermediate DC links.
• General Purpose Power Electronics — Applicable where polarized, high-voltage electrolytic capacitance with long life is required.

Unique Advantages

• Long operational life at elevated temperature: Rated to endure 5000 hours at 105°C under rated ripple current, helping maintain performance in hot power assemblies.
• High-voltage capability: 400 V rating supports higher-voltage rectifier and DC-link applications without additional series stacking.
• Designed for ripple handling: Specified ripple current at both 120 Hz and 50 kHz enables reliable smoothing across common switching and line-frequency conditions.
• Predictable electrical loss: Tan δ specification (max. 0.15 at 120 Hz, 20°C) provides a measurable indicator of dissipation behavior for thermal and stability planning.
• Robust mounting: Snap-in radial can package simplifies PCB retention and mechanical stability in power modules.
• Regulatory compliance: RoHS conformity supports use in products requiring restricted-substance compliance.

Why Choose LGX2G221MELZ45?

The LGX2G221MELZ45 is positioned for engineers specifying compact, high-voltage electrolytic capacitance with proven endurance for inverter and switching power applications. Its 400 V rating, specified ripple current performance, and 5000-hour endurance at 105°C make it suitable for designs that demand reliable DC-link smoothing and rectifier filtering under sustained thermal stress.

Manufactured by Nichicon and designed to datasheet performance limits (including leakage current formula, tan δ, and endurance criteria), this part is a practical choice for power-electronics designers and procurement teams seeking a verifiable, long-life snap-in capacitor for high-voltage applications.

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