LGX2E122MELB50

The LGX2E122MELB50 is an aluminum electrolytic capacitor from Nichicon's LGX series featuring a snap-in terminal configuration and a compact can package. Designed for general-purpose power applications, it is especially suited for rectifier circuits in inverters and switching power supplies where sustained ripple endurance and elevated operating temperatures are required.

Key value comes from long-life assurance at high temperature (rated for 5000 hours at 105°C) and robust ripple-current capability across low and high frequencies, enabling reliable smoothing and energy buffering in demanding power electronics designs.

Key Features

• Capacitance & Tolerance — 1.2 mF (1200 μF) nominal with tolerance of -20% to +20%.
• Rated Voltage — 250 V DC rated voltage for medium-voltage power stages.
• High-Temperature Long Life — Endurance specified as 5000 hours at 105°C with DC bias plus rated ripple current applied; after test the capacitance change is within ±20% of the initial value.
• Ripple Current Performance — Handles 2.68 A at 120 Hz and 4.02 A at 100 kHz, supporting both low-frequency and high-frequency ripple conditions.
• Operating Temperature Range — Rated for operation from -25°C to +105°C.
• Mounting & Package — Snap-in radial can for secure PCB mounting and straightforward assembly in power modules.
• Polarized — Designed for polarized DC applications typical in rectifier and power-conversion circuits.
• RoHS Compliant — Conforms to RoHS directive (2011/65/EU, (EU)2015/863).
• Compact Footprint — Smaller-sized LGX series can dimensions (approx. L: 5 × D: 3 cm) to help optimize board space in power assemblies.

Typical Applications

• Inverter Rectifier Circuits — Used for smoothing and bulk energy storage on rectifier outputs in general inverter systems.
• Switching Power Supplies — Suited for input/output filtering and ripple handling in switching power supply stages.
• General Power Electronics — Applicable where polarized aluminum electrolytics are required for energy buffering and decoupling under elevated temperatures.

Unique Advantages

• Long-life performance at 105°C — 5000-hour endurance rating provides predictable aging characteristics for designs exposed to sustained high temperatures.
• Dual-frequency ripple capability — Specified ripple current at both 120 Hz and 100 kHz supports a range of power conversion topologies and switching frequencies.
• Snap-in mounting for reliable assembly — Snap-in terminals simplify mechanical retention and electrical connection in power assemblies.
• Compact can size — Smaller-sized LGX series dimensions help reduce enclosure size and improve layout density without sacrificing capacitance.
• RoHS compliance — Meets current RoHS requirements for environmentally restricted substances.

Why Choose LGX2E122MELB50?

The LGX2E122MELB50 combines a high nominal capacitance (1.2 mF) and a 250 V rating with long-life assurance at elevated temperatures, making it a practical choice for designers seeking dependable bulk capacitance and ripple endurance in inverter and switching-supply circuits. Its snap-in radial package and compact dimensions simplify integration into power assemblies where board space and mechanical stability matter.

As part of Nichicon's LGX family, this part provides verifiable endurance and ripple specifications that support predictable lifecycle planning for industrial and general-purpose power designs. Select LGX2E122MELB50 when you need a polarized aluminum electrolytic capacitor with documented high-temperature operation and sustained ripple capability.

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