LGX2G181MELZ35

The LGX2G181MELZ35 is a snap‑in terminal aluminum electrolytic capacitor in Nichicon’s LGX series, engineered for long‑life power applications. It provides 180 µF capacitance at a 400 V rating and is designed for use in rectifier circuits of general inverters and switching power supplies, as well as other general‑purpose power electronics.

Built for elevated operating conditions, this component is specified for continuous operation from ‑25 °C to 105 °C and offers long‑life assurance with 5000 hours endurance at 105 °C under rated ripple current conditions. The part is RoHS compliant.

Key Features

• Capacitance and Voltage — 180 µF rated capacitance at 400 V for high‑voltage power filtering and energy storage in converter and rectifier circuits.
• Snap‑in Mounting, Radial Can — Snap‑in terminal type in a radial can package for robust PCB mounting and high current handling in power assemblies.
• High Temperature Endurance — Long life assurance: rated to withstand 5000 hours of DC bias plus rated ripple current at 105 °C with defined limits on capacitance change, dissipation factor, and leakage current.
• Operating Temperature Range — Specified for operation from ‑25 °C to 105 °C to support a wide range of industrial power environments.
• Ripple Current Capability — Rated ripple current handling of 860 mA at 120 Hz and 1.23 A at 50 kHz for effective smoothing in high‑frequency switching supplies.
• Capacitance Tolerance and Loss — ±20% tolerance (120 Hz, 20 °C) with tan δ specified by rated voltage (tan δ max. 0.15 for 200–400 V range).
• Leakage Current Specification — Leakage current meets I ≤ 3√CV (µA) after 5 minutes’ application of rated voltage at 20 °C, providing predictable leakage behavior for design calculations.
• RoHS Compliance — Conforms to RoHS directive requirements (2011/65/EU, (EU)2015/863).

Typical Applications

• Inverter Rectifier Circuits — Used for DC link and smoothing in general inverter rectifier stages where high voltage and reliable endurance are required.
• Switching Power Supplies — Provides bulk energy storage and ripple smoothing in SMPS designs operating at elevated temperatures and high ripple currents.
• General‑Purpose Power Electronics — Suitable for a variety of industrial power circuits that require robust, long‑life aluminum electrolytic capacitors.

Unique Advantages

• Extended High‑Temperature Life: 5000 hours endurance at 105 °C under rated ripple current ensures predictable long‑term performance in hot environments.
• High Voltage Capability: 400 V rating enables use in high‑voltage DC link and rectifier applications without additional series devices.
• Strong Ripple Handling: Rated ripple currents (860 mA at 120 Hz; 1.23 A at 50 kHz) reduce the need for parallel components to meet ripple requirements.
• Clear Electrical Limits: Leakage current, tan δ, and tolerance specifications are defined for accurate design margining and reliability calculations.
• Compact Form Factor: Smaller‑sized radial can snap‑in package with footprint dimensions L: 3.5 × D: 2.2 cm helps optimize board layout in power assemblies.
• Regulatory Compliance: RoHS compliance supports environmental requirements for commercial and industrial electronics.

Why Choose LGX2G181MELZ35?

The LGX2G181MELZ35 combines a high 400 V rating with a 180 µF capacitance in a snap‑in aluminum electrolytic package engineered for long‑term operation at elevated temperatures. Its defined endurance and electrical limits make it a practical choice for designers of inverters, switching power supplies, and general‑purpose power electronics who need predictable performance under continuous ripple and thermal stress.

As a member of the Nichicon LGX series, this capacitor is positioned for engineers requiring reliable, high‑voltage bulk capacitance with clear specifications for life, ripple, and leakage—enabling robust designs and simpler BOM decisions for industrial power systems.

Request a quote or submit an inquiry to check availability, lead times, and to obtain additional technical details for integrating the LGX2G181MELZ35 into your design.