LGN2G271MELB30

The LGN2G271MELB30 is a Nichicon aluminum electrolytic capacitor in a snap-in, radial can package designed for elevated-temperature, high-ripple applications. It provides 270 µF of capacitance at a 400 V rating and is specified for operation from −25 °C to 105 °C.

Engineered as part of the LGN series, this smaller-sized snap-in capacitor withstands 3000 hours of rated ripple current at 105 °C and is RoHS compliant, making it suitable for general-purpose power filtering where long endurance at elevated temperature is required.

Key Features

• Capacitance & Voltage — 270 µF nominal capacitance with a 400 V rated voltage for high-voltage energy storage and bulk smoothing.
• High-temperature Endurance — Rated to withstand 3000 hours of D.C. bias plus rated ripple current at 105 °C; capacitance change remains within ±20% over the endurance test.
• Ripple Current Handling — Specified ripple current: 1.22 A at 120 Hz and 1.745 A at 100 kHz, supporting continuous ripple-duty usage within rating.
• Operating Range & Stability — Operating temperature −25 °C to 105 °C; impedance stability at low temperature meets LGN series criteria (Z(−25 °C)/Z(+20 °C) ≤ 8 for the applicable voltage range).
• Leakage and Dissipation — Leakage current specification I ≤ 3 / √C (μA) after 5 minutes at 20 °C; tan δ maximum 0.15 at 120 Hz and 20 °C for the rated voltage band covering this part.
• Package & Mounting — Radial, snap-in can for secure chassis or board mounting; physically one rank smaller case size than the LGU-series counterpart, with dimensions L: 3 × D: 3 cm and a seated height maximum of 1.181 inch.
• Environmental Compliance — Compliant with RoHS directives (2011/65/EU, (EU)2015/863).
• Polarized Design — Polarized aluminum electrolytic suitable for DC applications requiring polarized capacitance.

Typical Applications

• General-purpose power filtering — Bulk smoothing and decoupling in power supplies where 400 V rating and elevated-temperature endurance are needed.
• High-ripple DC link support — Applications requiring sustained ripple current at elevated temperatures benefit from the 3000-hour ripple endurance at 105 °C.
• Industrial and commercial electronics — Use in equipment with continuous thermal stress that requires RoHS-compliant, high-voltage electrolytic capacitors.

Unique Advantages

• Long high-temperature life: 3000 hours endurance at 105 °C under rated ripple current provides predictable performance in elevated-temperature environments.
• High-voltage capability: 400 V rating enables use in higher-voltage DC systems and power stages without series stacking.
• Robust ripple performance: Specified ripple currents at 120 Hz and 100 kHz cover both low- and high-frequency ripple conditions for flexible design choices.
• Compact snap-in footprint: One rank smaller case than LGU-series parts and snap-in mounting simplify installation where board/chassis space is constrained.
• Measured electrical stability: Leakage current and tan δ specifications provide clear pass/fail criteria after voltage application and endurance testing.
• RoHS compliance: Meets 2011/65/EU and (EU)2015/863 requirements for restricted substances.

Why Choose LGN2G271MELB30?

The LGN2G271MELB30 combines a 270 µF capacitance with a 400 V rating in a compact snap-in aluminum electrolytic package optimized for sustained ripple duty at elevated temperatures. Its endurance specification—3000 hours at 105 °C under rated ripple current—along with defined leakage and dissipation limits makes it a predictable choice for designs that must maintain capacitance and leakage characteristics after long-term thermal and electrical stress.

This part is well suited for engineers specifying general-purpose power filtering and DC-link support in equipment where RoHS compliance, high-voltage capability, and reliable high-temperature ripple performance are required.

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