LGX2G151MELA25

The LGX2G151MELA25 is a snap‑in terminal aluminum electrolytic capacitor in a compact radial can (φ25 × 25 mm) designed for general purpose power applications. It provides 150 µF capacitance at a 400 V rating with polarization and is part of Nichicon’s LGX series long‑life assurance lineup.

Engineered for power conversion and rectification tasks, this capacitor is suited to rectifier circuits in general inverters and switching power supplies where sustained performance at elevated temperatures and continuous ripple current handling are required.

Key Features

• Electrical Rating – 150 µF capacitance at 400 V DC with a capacitance tolerance of ±20% (–20% to +20%).
• High‑temperature Endurance – Rated for operation up to +105°C with a long‑life assurance of 5000 hours when subjected to rated ripple current at 105°C.
• Ripple Current Performance – Rated ripple current of 860 mA at 120 Hz and 1.23 A at 50 kHz, supporting continuous filtering and smoothing in power stages.
• Mechanical / Mounting – Snap‑in terminal, radial can package sized φ25 × 25 mm for secure PCB mounting in power assemblies.
• Leakage and Loss Characteristics – Leakage current conforms to I ≤ 3√CV (μA) after 5 minutes at 20°C; series tan δ limits apply (tan δ max. 0.15 for 200–400 V category at 120 Hz, 20°C).
• Wide Ambient Range – Operating temperature range from –25°C to +105°C for use in elevated ambient environments.
• RoHS Compliant – Meets RoHS directive (2011/65/EU, (EU)2015/863) for restricted substances.

Typical Applications

• Inverter Rectifier Circuits – Provides DC smoothing and energy buffering in rectifier stages of general inverters.
• Switching Power Supplies – Serves as an input/output filter and energy reservoir in industrial and commercial switching PSUs.
• Power Conversion Modules – Used for bulk capacitance and ripple handling in power conversion and conditioning modules.
• General Purpose Power Electronics – Suitable for designs requiring a compact, high‑voltage electrolytic with defined long‑life performance at elevated temperatures.

Unique Advantages

• Long‑Life Assurance: Specified 5000 hours endurance at 105°C under rated ripple current, enabling predictable aging and maintenance planning in high‑temperature power systems.
• High Voltage Capability: 400 V rating supports common inverter and high‑voltage power supply topologies without compromising capacitance.
• Compact Snap‑in Package: φ25 × 25 mm radial can with snap‑in terminals allows secure mounting and straightforward assembly into power modules and PCBs.
• Measured Ripple Handling: Explicit ripple current values at both low (120 Hz) and high (50 kHz) frequencies permit designers to size capacitors against real operating conditions.
• Quantified Stability and Recovery: Endurance and shelf‑life specifications define allowable capacitance, tan δ and leakage changes, supporting reliable lifecycle predictions.
• Regulatory Compliance: RoHS compliance simplifies component selection for regulated markets and reduces material‑related risk.

Why Choose LGX2G151MELA25?

The LGX2G151MELA25 combines a compact snap‑in form factor with a 400 V rating and defined long‑life performance at 105°C, making it a practical choice for designers of inverters, switching power supplies, and general power electronics that require robust bulk capacitance and verified ripple endurance. Its published ripple current ratings and endurance limits give engineers concrete data to balance thermal and electrical design tradeoffs.

This part is well suited to designs where predictable aging, elevated ambient operation, and compliance with RoHS are important. Choosing the LGX2G151MELA25 supports scalable, reliable power subsystem designs with clear manufacturer‑specified endurance and performance characteristics.

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