LGW2E471MELZ40

The LGW2E471MELZ40 is a 470 µF, 250 V aluminum electrolytic capacitor in a snap‑in radial can designed for general‑purpose power electronics. It is part of Nichicon’s LGW series engineered for high ripple current and extended endurance at elevated temperature.

Key value propositions include high ripple‑current capability with specified endurance at 105°C and RoHS compliance, making it suitable where sustained ripple handling and long life are required in commercial and industrial power circuits.

Key Features

• Capacitance & Voltage — 470 µF nominal capacitance with a 250 V rated voltage and a tolerance of ±20% (at 120 Hz, 20°C), providing bulk energy storage for DC bus and smoothing applications.
• High Ripple Current & Endurance — Designed for high ripple current with specified ripple ratings (2.1 A at 120 Hz and 3.15 A at 50 kHz) and proven to withstand 3000 hours of rated ripple current at 105°C under DC bias.
• Operating Temperature — Rated for operation from −40°C to +105°C for the 200–250 V range, supporting elevated-temperature environments.
• Mounting & Package — Snap‑in terminal, radial can package for robust PCB retention and secure mechanical mounting in power assemblies.
• Reliability Parameters — Endurance limits after the 3000 h test: capacitance change within ±20%, tan δ up to 200% of initial spec, and leakage current less than or equal to initial specified value.
• Leakage Current — Leakage current specified by I ≤ 3√(CV) μA (measured after 5 minutes at 20°C), allowing predictable leakage behavior for design margining.
• Compliance — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863), supporting regulatory requirements for restricted substances.
• Form Factor — Compact dimensions (L: 4 × D: 2.2 cm) for space-conscious power modules.
• Polarized — Electrolytic, polarized device for DC applications.

Typical Applications

• Power supplies — Bulk smoothing and ripple filtering on 250 V DC rails where sustained ripple current and high-temperature endurance are required.
• Power conversion and inverters — DC‑link and bus capacitors in converters that demand high ripple handling and long-term stability at elevated temperatures.
• Industrial equipment — Energy buffering and decoupling in commercial and industrial power electronics assemblies operating up to 105°C.
• Backup power and UPS systems — Bulk energy storage and smoothing in systems that require predictable leakage and endurance characteristics over extended lifetimes.

Unique Advantages

• Proven high‑ripple endurance: Rated to withstand 3000 hours of application of rated ripple current at 105°C, enabling reliable operation under continuous stress.
• Frequency‑rated ripple data: Published ripple current values at 120 Hz and 50 kHz (2.1 A and 3.15 A respectively) allow designers to size capacitors precisely for both low and high frequency ripple environments.
• Robust mounting: Snap‑in radial can construction provides secure mechanical retention for high‑vibration and high‑current power modules.
• Clear reliability limits: Datasheet endurance and shelf‑life criteria (capacitance, tan δ, leakage) enable deterministic life and maintenance planning.
• Regulatory compliance: RoHS conformity supports deployment in regions requiring restricted‑substance compliance.
• Compact energy density: 470 µF at 250 V in a 4 × 2.2 cm footprint helps reduce board area for bulk capacitance needs.

Why Choose LGW2E471MELZ40?

The LGW2E471MELZ40 positions itself as a reliable bulk capacitor for designers needing high ripple capability and verified endurance at elevated temperatures. Its combination of 470 µF capacitance, 250 V rating, snap‑in package, and detailed endurance/leakage specifications make it well suited to power supply, power conversion, and industrial energy‑buffering applications.

Engineered as part of Nichicon’s LGW series, the part delivers predictable electrical behavior (leakage current formula, tan δ limits) and regulatory compatibility, helping reduce redesign risk and simplify validation for general‑purpose power electronic systems.

If you would like a quote or have technical questions about integrating the LGW2E471MELZ40 into your design, request a formal quote or submit your inquiry to receive pricing and availability information.