LGX2G181MELA30

The LGX2G181MELA30 is an aluminum electrolytic, snap-in terminal capacitor from Nichicon’s LGX series designed for long-life power applications. It delivers 180 µF at 400 V in a compact, snap-in can intended for general-purpose power electronics.

Engineered for rectifier circuits in general inverters and switching power supplies, this part provides 5000 hours of rated ripple-current endurance at 105°C, polarized operation, and RoHS compliance for regulated designs.

Key Features

• Capacitance & Voltage — 180 µF nominal capacitance rated at 400 V DC for bulk energy storage and smoothing in high-voltage power rails.
• Snap-in Terminal Package — Radial, can-type snap-in mounting for secure PCB installation and mechanical stability in high-vibration environments.
• 105°C Long-Life Assurance — Rated to withstand 5000 hours of rated ripple current at 105°C; endurance limits specify capacitance within ±20% after test.
• High Ripple-Current Capability — Rated ripple current of 970 mA at 120 Hz and 1.387 A at 50 kHz to support high-frequency switching supplies and rectifier smoothing.
• Operating Temperature Range — −25°C to +105°C to match elevated-temperature power applications.
• Leakage and Loss Characteristics — Leakage current specified as I ≤ 3√(C·V) µA (after 5 minutes at 20°C); tan δ limits defined by rated voltage class per datasheet.
• Compact Physical Size — Can dimensions approximately L: 3.0 × D: 2.5 cm with a seated height up to 1.181 inch for space-conscious power assemblies.
• Polarized — Designed for DC circuits where polarity is maintained.
• RoHS Compliant — Meets the RoHS directive (2011/65/EU, (EU)2015/863) for restricted substances.

Typical Applications

• General Inverters (Rectifier Circuits) — Bulk smoothing and energy storage on rectifier outputs where long-life and high-voltage handling are required.
• Switching Power Supplies — Output and bulk capacitors for high-frequency switching supplies, leveraging specified ripple-current capability at 50 kHz and 120 Hz.
• Industrial Power Electronics — General-purpose DC link and filtering roles in industrial power assemblies that demand 105°C endurance.

Unique Advantages

• Proven Long-Life Endurance — 5000 hours at 105°C under rated ripple conditions, with post-test capacitance within ±20%, providing predictable life for maintenance planning.
• High-Voltage, High-Ripple Capability — 400 V rating combined with specified ripple currents (970 mA @120 Hz, 1.387 A @50 kHz) supports robust smoothing in demanding power circuits.
• Compact Snap-in Form Factor — Smaller-sized radial can and snap-in terminals simplify PCB mounting while saving board area compared to larger cans.
• Defined Electrical Limits — Leakage current and tan δ limits are specified in the datasheet (I ≤ 3√CV µA after 5 min at 20°C; tan δ limits by voltage class), enabling accurate design margins.
• Regulatory Compliance — RoHS conformity supports deployment in regulated markets without additional material restrictions.
• Series Consistency — Part of Nichicon’s LGX series, which documents performance and dimensional standards for consistent BOM selection.

Why Choose LGX2G181MELA30?

The LGX2G181MELA30 combines a 400 V voltage rating with 180 µF capacitance in a snap-in, smaller-sized can tuned for power-electronics applications requiring elevated temperature endurance. Its documented 5000-hour rated-ripple endurance at 105°C and specified ripple-current capabilities make it suitable for designers focused on reliable filtering and energy storage in inverters and switching power supplies.

As part of Nichicon’s LGX line, this capacitor offers clear, datasheet-backed electrical and mechanical specifications so engineers and procurement teams can specify with confidence for medium- to high-voltage power designs that require long operating life and RoHS compliance.

Request a quote or contact sales to discuss availability, pricing, and delivery for the LGX2G181MELA30.