LGN2W271MELB35

The LGN2W271MELB35 is a snap‑in terminal type aluminum electrolytic capacitor from Nichicon’s LGN series, rated at 270 µF and 450 V. Designed as a compact, large‑can solution for general‑purpose power electronics, it delivers sustained ripple endurance and stability across a wide operating temperature range.

This LGN series part is optimized for high‑stress ripple environments—engineered to withstand 3000 hours of rated ripple current at 105°C—and is RoHS compliant.

Key Features

• Electrical Performance — 270 µF capacitance at 450 V rating with ±20% tolerance, providing bulk energy storage and filtering for high‑voltage applications.
• High Ripple Endurance — Specified ripple current capability of 1.23 A at 120 Hz and 1.759 A at 100 kHz, and rated to withstand 3000 hours of rated ripple current at 105°C per the LGN series endurance specification.
• Thermal and Frequency Characteristics — Operates across −25°C to +105°C (for 350–600 V range); tan δ maximum for 450 V parts is 0.20 (measured at 120 Hz, 20°C).
• Low‑temperature Stability — Series low‑temperature impedance behavior: Z(−25°C)/Z(+20°C) up to 8 for 350–600 V types, supporting cold‑start and low‑temperature operation.
• Package & Mounting — Radial, large‑can snap‑in construction for secure, low‑impedance mounting in power racks and assemblies.
• Reliability & Compliance — Endurance specifications: after D.C. bias plus rated ripple for 3000 hours at 105°C, capacitance change within ±20%, tan δ within 200% of initial spec, and leakage current less than or equal to initial specified value; RoHS compliant.

Typical Applications

• Power supply bulk filtering — Provides high‑voltage energy storage and ripple smoothing in switching and linear power supplies where sustained ripple endurance is required.
• Industrial power electronics — Suitable for general‑purpose industrial equipment that requires robust ripple handling and thermal endurance at elevated temperatures.
• Energy buffering — Used for bulk capacitance and transient energy support in UPS, converters, and inverter front‑end circuits.

Unique Advantages

• High ripple endurance at elevated temperature — Rated to endure 3000 hours of rated ripple current at 105°C, supporting long‑life operation under continuous ripple stress.
• Compact large‑can footprint — LGN series offers one rank smaller case size than the LGU series, helping optimize board space without sacrificing capacitance or voltage rating.
• Broad high‑voltage capability — Part of a series rated from 160 V to 600 V; this SKU provides a 450 V rating for higher‑voltage designs.
• Measured electrical stability — Defined tan δ (≤0.20 at 450 V) and low‑temperature impedance limits ensure predictable behavior across frequency and temperature ranges.
• RoHS compliant — Meets RoHS directive requirements for materials, simplifying regulatory compliance.

Why Choose LGN2W271MELB35?

The LGN2W271MELB35 delivers a balanced combination of high voltage, significant bulk capacitance, and proven ripple endurance in a compact snap‑in can. Its specifications—270 µF at 450 V, defined ripple current ratings at 120 Hz and 100 kHz, and endurance verified at 105°C—make it a pragmatic choice for engineers designing robust power systems that must manage sustained ripple and elevated operating temperatures.

This part is well suited to designers of general‑purpose power electronics, industrial converters, and energy buffering systems who need a reliable, RoHS‑compliant electrolytic capacitor with clear endurance and electrical characteristics backed by Nichicon’s LGN series data.

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