LGN2H181MELC30

The LGN2H181MELC30 is a snap-in terminal aluminum electrolytic capacitor designed for general-purpose electronic applications. It pairs a 180 µF capacitance with a 500 V rated voltage in a smaller-sized, radial can snap-in package.

Engineered for elevated-temperature environments, this part is specified for operation up to 105°C and is designed to withstand 3000 hours of rated ripple current at 105°C, offering a compact, high-voltage energy storage option for general-purpose power systems.

Key Features

• Electrical Rating — 180 µF capacitance at a 500 V rated voltage, suitable where high-voltage bulk capacitance is required.
• High-temperature Endurance — Specified to withstand 3000 hours of rated ripple current at 105°C, with post-test limits: capacitance change within ±20% and leakage current not exceeding initial specified value.
• Snap-In Radial Package — Snap-in terminal, radial can construction for secure PCB mounting and axial stability; one rank smaller case size than LGU for reduced board footprint.
• Operating Temperature Range — Specified −25°C to +105°C for 350–600 V ratings, enabling use across elevated-temperature systems within that range.
• Tolerance and Stability — Capacitance tolerance ±20% (at 120 Hz, 20°C); stability at low temperature shown by impedance ratio limits (Z(−25°C)/Z(+20°C) up to 8 for 350–600 V).
• Dissipation Factor — Tan δ maximum 0.20 at 120 Hz and 20°C for 450–600 V ratings, supporting predictable AC performance at rated voltage.
• Ripple Current Capability — Rated ripple handling of 900 mA at 120 Hz and 1.287 A at 100 kHz, enabling effective AC filtration across low and high frequencies.
• Environmental Compliance — Compliant with RoHS (2011/65/EU, (EU)2015/863).

Typical Applications

• General-purpose power electronics — Acts as high-voltage bulk or smoothing capacitance in general-purpose designs that require 500 V, 180 µF snap-in components.
• Industrial and commercial equipment — Suited for equipment designs that need compact, high-voltage capacitors with elevated-temperature endurance up to 105°C.
• High-voltage assemblies — Useful where radial, snap-in mounting and a reduced case size relative to LGU simplify board layout while maintaining 500 V capability.

Unique Advantages

• Long-duration high-temperature rating — Endurance specified for 3000 hours at 105°C under rated ripple current, supporting dependable long-term operation in hot environments.
• Compact high-voltage solution — One rank smaller case than LGU plus a small L×D footprint (approx. 3 × 3.5 cm) helps save board space while delivering 500 V performance.
• Broad frequency ripple handling — Explicit ripple current specifications at both 120 Hz and 100 kHz provide quantifiable performance for AC filtering across common frequencies.
• Predictable electrical behavior — Specified tan δ and impedance-ratio limits for the 350–600 V range provide predictable dissipation and low-temperature impedance characteristics.
• RoHS-compliant manufacture — Meets EU RoHS requirements (2011/65/EU, (EU)2015/863) for environmentally conscious designs.

Why Choose LGN2H181MELC30?

LGN2H181MELC30 is positioned for designers who need a compact, high-voltage aluminum electrolytic capacitor that delivers quantifiable high-temperature endurance and clear ripple-current ratings. Its snap-in radial format and one-rank-smaller case size help reduce board footprint without sacrificing the 500 V capability and 180 µF capacitance designers require for general-purpose power applications.

This part is a practical choice for teams focused on robust, long-life performance at elevated temperatures and who require verifiable specifications for dissipation, impedance stability, and ripple handling. Backed by Nichicon's documented series specifications, it supports predictable component selection and lifecycle planning in general-purpose designs.

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