LGX2E122MELC40

The LGX2E122MELC40 is a snap‑in terminal aluminum electrolytic capacitor from Nichicon’s LGX series, specified at 1.2 mF and 250 V. It is designed for power electronics use where sustained ripple handling and long life at elevated temperature are required.

Suited for rectifier stages in inverters and switching power supplies, the LGX2E122MELC40 offers extended endurance under rated ripple current and complies with RoHS (2011/65/EU, (EU)2015/863).

Key Features

• Capacitance & Voltage: 1.2 mF nominal capacitance with a rated voltage of 250 V and capacitance tolerance of ±20%, providing predictable energy storage for power circuits.
• High‑temperature long life: LGX series long‑life assurance — specified to withstand 5000 hours of rated ripple current at 105°C, supporting reliable operation in hot environments.
• Ripple current performance: Rated ripple current of 2.72 A at 120 Hz and 4.08 A at 50 kHz, enabling effective smoothing and filtering in high‑frequency switching environments.
• Operating temperature range: −25°C to +105°C, covering typical industrial power conversion temperature conditions.
• Package & mounting: Radial can with snap‑in terminals for secure through‑hole mounting on power PCBs and robust mechanical retention.
• Polarized electrolytic construction: Designed for DC applications such as rectifiers and filter stages where polarity is defined.
• Environmental compliance: RoHS compliant (2011/65/EU, (EU)2015/863).
• Compact footprint: Physical size L: 4 × D: 3.5 cm for space‑conscious power assemblies.

Typical Applications

• Inverter rectifier circuits: Used as DC smoothing and filter capacitors in the rectifier stages of general inverters to stabilize DC bus voltage under sustained ripple.
• Switching power supplies: Applied in input/output filtering and energy storage for SMPS designs requiring high ripple handling at elevated temperatures.
• Power conversion and filtering: Employed where polarized electrolytic capacitance is needed to reduce voltage ripple and improve regulator stability in industrial power systems.

Unique Advantages

• Long operational endurance: The 5000‑hour rated life at 105°C reduces the need for frequent replacements in high‑temperature power applications.
• Robust ripple capability: Specified ripple currents at both low (120 Hz) and high (50 kHz) frequencies help limit temperature rise and extend service life under real-world switching loads.
• Secure snap‑in mounting: Snap‑in terminals provide reliable mechanical retention for through‑hole power boards, simplifying assembly in high‑vibration environments.
• Clear performance parameters: Polarized construction, ±20% capacitance tolerance, and defined operating temperature range allow straightforward engineering margining and BOM planning.
• Regulatory alignment: RoHS compliance supports designs targeting regulated markets and environmentally conscious customers.

Why Choose LGX2E122MELC40?

The LGX2E122MELC40 balances high capacitance and 250 V rating with long‑life performance under elevated temperature and sustained ripple. It is a practical choice for engineers designing rectifier and filter stages in inverters and switching power supplies where reliable DC smoothing and endurance are critical.

As part of Nichicon’s LGX series, this snap‑in aluminum electrolytic capacitor is positioned for power conversion applications that need predictable electrical behavior, robust ripple handling, and RoHS compliance—helping reduce maintenance cycles and support long‑term system uptime.

Request a quote or submit a technical inquiry for LGX2E122MELC40 to begin a procurement or sample request and confirm fit for your specific power design requirements.