LGNW6181MELY45

The LGNW6181MELY45 is a Nichicon LGN series aluminum electrolytic capacitor in a snap‑in terminal radial can. It delivers 180 µF at a 420 V rating with snap‑in mounting and a smaller case dimensioning within the LGN family.

Designed for general‑purpose applications, this part emphasizes high‑temperature endurance and sustained ripple capability, making it suitable where long‑term performance at elevated temperatures is required.

Key Features

• Electrical rating: 180 µF capacitance at 420 V rated voltage with ±20% tolerance (measured at 120 Hz, 20°C).
• High-temperature endurance: Rated for operation up to 105°C and specified to withstand 3000 hours application of rated ripple current at 105°C.
• Ripple current performance: Specified ripple current of 910 mA at 120 Hz and 1.301 A at 100 kHz for sustained AC ripple handling.
• Compact snap‑in package: Radial, can-type snap‑in mounting; physical size L: 4.5 × D: 2 cm with a seated height maximum of 1.772 inch.
• Polarized electrolytic construction: Polarized design for DC applications where electrolytic capacitors are required.
• Reliability characteristics: Endurance and shelf‑life specifications from the LGN series: capacitance change within ±20%, tan δ within specified limits, and leakage current within initial specified value after endurance testing.
• Environmental compliance: Compliant to the RoHS directive (2011/65/EU, (EU)2015/863).
• Clear identification: Marked with white lettering on a black sleeve for easy part identification.

Typical Applications

• General Purpose — Intended for general‑purpose applications as specified for the part.
• High‑temperature environments — Suitable where operation and endurance at up to 105°C are required.
• High‑voltage circuits — Appropriate for circuits that require components rated at 420 V.
• Compact, snap‑in designs — Useful for designs that need a radial snap‑in can in a smaller case size within the LGN family.

Unique Advantages

• Long high‑temperature endurance: Specified 3000 hours at 105°C under rated ripple current, providing predictable life characteristics for elevated‑temperature use.
• Defined ripple capability: Explicit ripple current ratings at both 120 Hz and 100 kHz allow designers to match capacitor selection to specific ripple environments.
• Space‑efficient form factor: One rank smaller case size than the LGU series while retaining snap‑in mounting simplifies layout where board space is constrained.
• RoHS compliance: Meets current RoHS requirements, supporting regulatory needs for lead‑free products.
• Clear tolerancing and marking: ±20% capacitance tolerance and white‑on‑black sleeve marking aid inventory control and assembly verification.

Why Choose LGNW6181MELY45?

LGNW6181MELY45 is positioned for engineers and buyers seeking a high‑voltage, snap‑in aluminum electrolytic capacitor with documented high‑temperature endurance and explicit ripple current ratings. Its compact LGN family sizing, RoHS compliance, and clear identification make it a practical choice for designs that require reliable long‑term performance at elevated temperatures.

This part is suited to projects where predictable endurance, defined ripple handling, and a compact snap‑in can are important selection criteria. Specification details from the LGN series ensure consistent behavior across endurance and shelf‑life conditions.

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