LGX2H181MELA50

The LGX2H181MELA50 is a snap‑in terminal aluminum electrolytic capacitor from Nichicon’s LGX long‑life assurance series. It delivers 180 µF capacitance at a 500 V rating in a radial can with snap‑in mounting, designed for general purpose power electronics.

Built for rectifier circuits in general inverters and switching power supplies, this part is specified for sustained ripple current operation at elevated temperature and is RoHS‑compliant.

Key Features

• Capacitance & Voltage — 180 µF nominal capacitance with a 500 V rated voltage and ±20% tolerance at 120 Hz, 20°C.
• Snap‑in Terminal Package — Radial, can‑style snap‑in mounting for secure PCB installation in power assemblies.
• High‑temperature long life — Specified to withstand 5000 hours of rated ripple current at 105°C (endurance condition).
• Operating temperature range — Rated for −25°C to +105°C operation.
• Ripple current capability — Rated ripple current of 1.2 A at 120 Hz and 1.716 A at 50 kHz for defined use in rectifier and smoothing circuits.
• Leakage current specification — Initial leakage current limited by I ≤ 3√(C·V) µA after 5 minutes at 20°C, providing predictable leakage behavior.
• Electrical stability — For 450–500 V ratings, tangent of loss angle (tan δ) is specified up to 0.20 (measurement at 120 Hz, 20°C); low‑temperature impedance ratio Z(−25°C)/Z(+20°C) is ≤8 for 400–500 V units.
• Polarized construction — Designed as a polarized electrolytic capacitor for DC filtering and energy storage.
• RoHS compliant — Meets RoHS directive requirements (2011/65/EU, (EU)2015/863).
• Compact size — Physical dimensions listed as L: 5 × D: 2.5 cm for integration into power assemblies where space is constrained.

Typical Applications

• General inverters — Used in rectifier and smoothing stages to support DC link and bulk energy storage under high voltage conditions.
• Switching power supplies — Provides bulk capacitance and ripple filtering in high‑voltage power supplies for industrial and commercial equipment.
• Power conversion modules — Suitable for use in rectifier circuits and DC filtering in modular power electronics where long life at elevated temperature is required.

Unique Advantages

• Long life under stress: Endurance specification of 5000 hours at 105°C with rated ripple current supports designs that require extended high‑temperature reliability.
• High voltage capability: 500 V rating enables use in higher‑voltage rectifier and DC link applications without series arrays.
• Predictable ripple performance: Published ripple current ratings at 120 Hz and 50 kHz allow designers to match the part to expected operating frequencies and loading.
• Measured electrical limits: Clear leakage current formula and tan δ limits for the 450–500 V range provide quantifiable parameters for margin and thermal design.
• RoHS compliance: Conforms to applicable RoHS directives, supporting regulatory requirements for commercial and industrial products.
• Snap‑in mechanical retention: Radial snap‑in can package simplifies PCB mounting for robust power assemblies.

Why Choose LGX2H181MELA50?

The LGX2H181MELA50 combines a high 500 V rating with 180 µF capacitance in Nichicon’s LGX long‑life assurance platform, providing designers with a predictable, durable choice for rectifier and smoothing duties. Its 5000‑hour endurance at 105°C and defined ripple current ratings make it appropriate for power electronics applications that demand stability at elevated temperature.

This part is well suited to engineers and procurement teams building or servicing inverters, switching power supplies, and power conversion modules who require documented electrical limits (leakage, tan δ, impedance) and RoHS compliance for long‑term integration and reliability.

Request a quote or submit a purchase inquiry to the sales team to confirm availability, lead time, and volume pricing for LGX2H181MELA50.