LGX2W181MELZ45

The LGX2W181MELZ45 is a snap‑in terminal aluminum electrolytic capacitor from Nichicon’s LGX series designed for high‑voltage power applications. It delivers 180 µF at a 450 V rating in a compact radial can snap‑in package suitable for power conversion circuits.

Targeted at general inverter rectifiers and switching power supplies, this part provides long‑life performance with 5000 hours endurance under rated ripple at 105°C and RoHS compliance for modern production requirements.

Key Features

• Electrolytic Core & Package — Aluminum electrolytic, snap‑in terminal, radial can construction for secure board mounting and high current capability.
• Capacitance & Voltage — 180 µF nominal capacitance at a 450 V rated voltage with ±20% tolerance (at 120 Hz, 20°C).
• High‑Temperature Endurance — Long life assurance: specified to withstand 5000 hours of rated ripple current at 105°C with defined post‑test limits for capacitance, tan δ and leakage current.
• Ripple Current Handling — Rated ripple current: 900 mA at 120 Hz and 1.287 A at 100 kHz to support rectification and filtering in power stages.
• Operating Range & Stability — Operating temperature range −25°C to +105°C; low‑temperature impedance characteristics documented for 400–500 V range (Z(−25°C)/Z(+20°C) ≤ 8).
• Electrical Quality Controls — Leakage current specified as I ≤ 3√(C·V) µA after 5 minutes at 20°C; tan δ maximum 0.20 for 450–500 V ratings (measured at 120 Hz, 20°C).
• Dimensions — Size L: 4.5 × D: 2.2 cm for compact board layout in power assemblies.
• Environmental Compliance — RoHS compliant (2011/65/EU, (EU)2015/863).

Typical Applications

• Inverter Rectifier Circuits — Suited for smoothing and energy storage on rectifier outputs in general inverter topologies.
• Switching Power Supplies — Used for bulk filtering and ripple absorption in high‑voltage switching supplies.
• General Power Systems — Applicable where polarized, high‑voltage electrolytic capacitors are required for power smoothing and decoupling.

Unique Advantages

• Proven Long‑Life Performance: Rated for 5000 hours at 105°C under rated ripple current, offering predictable end‑of‑life behavior (capacitance within ±20% after endurance test).
• High‑Voltage Capability: 450 V rating enables use in elevated DC bus and rectifier circuits without series stacking.
• Documented Ripple Handling: Specified ripple currents at 120 Hz and 100 kHz support both low‑ and high‑frequency power stages.
• Thermal and Frequency Stability: Specified impedance and tan δ limits across temperature and frequency provide designable performance margins.
• Compact Snap‑In Form Factor: Radial snap‑in can with compact L × D footprint simplifies installation in power modules and assemblies.
• Regulatory Compliance: RoHS conformity supports use in regulated production environments.

Why Choose LGX2W181MELZ45?

The LGX2W181MELZ45 combines high‑voltage capability, defined ripple performance and long life at elevated operating temperature to meet the needs of inverter and switching power designs. Its documented endurance and electrical characteristics make it suitable for engineers specifying reliable bulk capacitance in power conversion and rectifier circuits.

This part is appropriate for designers who require a polarized aluminum electrolytic with measured ripple ratings, clear low‑temperature impedance behavior, and RoHS compliance for production environments.

If you would like pricing, availability or a quotation for LGX2W181MELZ45, request a quote or contact sales to discuss lead times and order quantities.