LGNW6271MELA40

The LGNW6271MELA40 is a 270 µF, 420 V aluminum electrolytic capacitor in a snap‑in radial can designed for general‑purpose power applications. It combines a compact, smaller‑sized case (one rank smaller than LGU) with a polarized snap‑in terminal for secure board mounting and robust electrical performance.

Engineered for elevated temperature operation, this part withstands rated ripple current at 105°C for 3000 hours, offering long endurance in demanding power‑filtering and energy‑storage roles where high voltage, sustained ripple handling and RoHS compliance matter.

Key Features

• Electrical Performance — 270 µF capacitance with a 420 V rated voltage and ±20% tolerance provides reliable energy storage and decoupling in high‑voltage circuits.
• Ripple Current Handling — Rated ripple current of 1.25 A at 120 Hz and 1.788 A at 100 kHz supports steady AC ripple suppression and smoothing under real operating conditions.
• High‑Temperature Endurance — Specified to withstand 3000 hours of application of rated ripple current at 105°C, delivering predictable end‑of‑life characteristics for long‑running equipment.
• Operating Temperature Range — Rated for –25°C to +105°C (applicable to the 350–600 V range in the LGN series), suitable for elevated ambient environments.
• Mechanical & Mounting — Snap‑in radial can package (L: 4 × D: 2.5 cm) for secure board retention and straightforward assembly in power modules and chassis.
• Compliance — RoHS compliant (2011/65/EU, (EU)2015/863), supporting environmentally regulated designs.
• Polarized Design — Standard polarized aluminum electrolytic construction for applications requiring DC polarity.

Typical Applications

• General‑purpose power filtering — Bulk filtering and smoothing where 420 V rating and 270 µF capacitance are required to stabilize DC rails.
• Industrial power supplies — Supports sustained ripple handling and high‑temperature endurance for continuous‑duty supply modules.
• High‑voltage smoothing and energy storage — Provides DC link smoothing and transient energy support in equipment operating up to the part’s rated voltage.

Unique Advantages

• Compact footprint — One rank smaller case than LGU enables space savings without sacrificing rated voltage or endurance.
• Long high‑temperature life — 3000 hours at 105°C under rated ripple current gives designers predictable longevity in hot environments.
• Dual‑frequency ripple data — Published ripple currents at 120 Hz and 100 kHz help design for both low‑frequency and high‑frequency switching environments.
• Robust snap‑in mounting — Radial snap‑in can ensures mechanical stability for heavier power boards and reduces assembly complexity.
• Regulatory compliance — RoHS conformity supports use in regulated markets and simplifies end‑product compliance.

Why Choose LGNW6271MELA40?

LGNW6271MELA40 is positioned for designs that require a compact, high‑voltage electrolytic capacitor with proven endurance at elevated temperatures. Its 420 V rating, 270 µF capacitance and specified ripple‑current performance make it suitable for engineers balancing board space, thermal stress and long service life in power conversion and filtering roles.

This part is appropriate for procurement in industrial and general‑purpose electronic equipment where RoHS compliance, polarized aluminum electrolytic characteristics, and predictable end‑of‑life behavior at 105°C are important. The combination of compact sizing and robust endurance simplifies integration into existing power module footprints while maintaining reliable performance.

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