LGX2E182MELC50

The LGX2E182MELC50 is a snap-in terminal aluminum electrolytic capacitor from Nichicon's LGX series, rated 1800 μF at 250 V. Engineered for power conversion circuits, it delivers long-life performance with endurance tested to 5000 hours at 105°C and is RoHS compliant.

Its snap-in radial can package and high capacitance make it well suited for rectifier stages and bulk filtering in general inverters and switching power supplies where sustained ripple handling and thermal endurance are required.

Key Features

• Capacitance & Tolerance — 1800 μF nominal capacitance with ±20% tolerance measured at 120 Hz, 20°C.
• Voltage Rating — 250 V rated voltage appropriate for high-voltage DC bus and rectifier applications.
• High Temperature Endurance — Long life assurance: meets endurance criteria after 5000 hours of rated ripple current at 105°C (with performance limits defined by the series specifications).
• Ripple Current Performance — Rated ripple current of 3.3 A at 120 Hz and 4.95 A at 50 kHz for sustained ripple handling across low and high frequency environments.
• Operating Temperature Range — Specified for operation from −25°C to +105°C to cover a wide range of industrial operating conditions.
• Mounting & Package — Snap-in terminal, radial can package for secure PCB mounting and robust mechanical retention.
• Leakage Current Specification — Leakage current meets I ≤ 3√(C·V) μA after 5 minutes’ application of rated voltage at 20°C, as defined by the series datasheet.
• Physical Size — Body dimensions approximately 35 mm diameter × 50 mm length (L: 5 × D: 3.5 cm) for planning board layout and enclosure fit.
• Regulatory — Compliant to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Switching Power Supplies — Bulk filtering and energy storage on DC bus lines, leveraging high capacitance and rated ripple current for stable output.
• General Inverter Rectifier Circuits — Smoothing and decoupling in rectifier stages where long-term thermal endurance at 105°C is required.
• Industrial Power Conversion — Energy buffering and ripple suppression in industrial converters and power modules that demand sustained performance under elevated temperatures.

Unique Advantages

• Long-Life Endurance: Meets series endurance of 5000 hours at 105°C under rated ripple current, supporting designs that require proven thermal longevity.
• High Capacitance at High Voltage: 1800 μF at 250 V provides substantial bulk energy storage for DC link and smoothing applications without parallel arrays.
• Dual-Frequency Ripple Capability: Specified ripple current at both 120 Hz (3.3 A) and 50 kHz (4.95 A) enables predictable performance across switching and line-frequency environments.
• Secure PCB Mounting: Snap-in radial can design offers mechanical stability and straightforward insertion for power supply assemblies.
• Clear Reliability Limits: Endurance, shelf-life and leakage current criteria are defined in the LGX series specifications, enabling accurate lifetime and maintenance planning.
• RoHS Compliant: Meets current RoHS directives for environmentally conscious designs.

Why Choose LGX2E182MELC50?

LGX2E182MELC50 combines high capacitance, a 250 V rating and series-proven long-life endurance to serve power conversion and rectification designs that require sustained ripple handling at elevated temperatures. Its snap-in radial can form factor and defined electrical limits make it straightforward to specify into switching power supplies and inverter rectifier circuits.

Produced by Nichicon and supported by series-level specifications (including leakage current formula, temperature stability and endurance criteria), this capacitor is appropriate for engineers seeking predictable, long-duration performance in industrial and power electronics applications.

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