LGX2G271MELA40

The LGX2G271MELA40 is a snap-in terminal aluminum electrolytic capacitor from Nichicon’s LGX long-life series. It provides 270 µF at 400 V in a radial, snap-in can designed for power electronics where sustained ripple handling and extended high-temperature life are required.

Engineered for power conversion applications, this capacitor is suited for rectifier circuits in general inverters and for smoothing or bulk filtering in switching power supplies. The part is RoHS compliant and rated for continuous operation from −25°C to 105°C with long-life assurance.

Key Features

• Electrical Ratings: 270 µF capacitance at 400 V rated voltage with ±20% tolerance and polarized construction for DC power circuits.
• High ripple handling: Rated ripple current of 1.26 A at 120 Hz and 1.802 A at 50 kHz to support rectification and smoothing in power supplies.
• Long-life endurance: Designed to withstand 5000 hours of rated ripple current at 105°C; after endurance testing, capacitance remains within ±20% and leakage current remains at or below initial specified values.
• Thermal performance: Operating temperature range −25°C to +105°C with series-level stability and loss characteristics (tan δ limits and low-temperature impedance ratios per LGX series data).
• Leakage and loss characteristics: Leakage current meets I ≤ 3√(C·V) μA after 5 minutes at 20°C; tan δ limits defined for rated voltage ranges to ensure predictable dissipation.
• Package and mounting: Radial, snap-in can package for secure PCB mounting; compact physical footprint (approximately 4.0 × 2.5 cm) for space-conscious power designs.
• Material and marking: Sleeve printed in white on black, RoHS compliant (2011/65/EU, (EU)2015/863).

Typical Applications

• General Inverters (rectifier circuits): Bulk and smoothing capacitor for rectifier stages in inverter systems where sustained ripple current and high-voltage rating are needed.
• Switching Power Supplies: Energy storage and filter capacitor for high-voltage, high-temperature switching supplies requiring long operational life.
• General-purpose power systems: DC link, bulk filtering, and smoothing in industrial and commercial power electronics that require reliable high-voltage capacitors.

Unique Advantages

• Extended high-temperature life: 5000-hour endurance at 105°C provides predictable long-term performance in high-stress thermal environments.
• High-voltage capability: 400 V rating enables use in medium- to high-voltage DC circuits common in inverter and power supply stages.
• Measurable ripple resilience: Documented ripple current ratings at both low and high frequencies (120 Hz and 50 kHz) help designers size capacitors for real-world ripple loads.
• Compact snap-in form factor: Radial snap-in can offers a secure board mounting solution while minimizing PCB area for power assemblies.
• Predictable electrical stability: Specified limits for leakage current, tan δ, and low-temperature impedance ratio support reliable behavior across the specified temperature range.
• Regulatory compliance: RoHS compliance simplifies environmental requirements for global product designs.

Why Choose LGX2G271MELA40?

LGX2G271MELA40 combines a high-voltage 400 V rating with substantial capacitance and documented ripple-handling to meet the demands of rectifier and smoothing stages in inverter and switching power supply designs. Its 5000-hour endurance at 105°C and defined electrical limits deliver a predictable performance profile for engineers specifying reliable bulk and filter capacitors.

As part of Nichicon’s LGX long-life series, this capacitor is intended for designers who need durable, RoHS-compliant components with clearly specified endurance, leakage, and loss characteristics for medium-voltage power electronics.

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