LGR2G271MELB45

The LGR2G271MELB45 is a Nichicon aluminum electrolytic capacitor in a snap‑in radial can, rated 270 µF at 400 V with long‑life assurance to 105 °C. Designed for general‑purpose power applications, it delivers a combination of high voltage capability, extended endurance and robust ripple handling in a compact snap‑in package.

Key value propositions include a 10,000‑hour endurance rating at 105 °C, RoHS compliance, and frequency‑dependent ripple capability suitable for demanding power circuits that require stable capacitance and long service life.

Key Features

• Capacitance & Voltage — 270 µF nominal capacitance with a 400 V rated voltage and ±20% tolerance, providing energy storage for high‑voltage power buses.
• Long‑Life Endurance — Specified for 10,000 hours at 105 °C under rated ripple and DC bias, with post‑test limits of ±25% capacitance change and leakage current ≤ initial specified value.
• Wide Operating Temperature — Category temperature range for the 400 V version is −25 °C to +105 °C, supporting elevated ambient operation.
• Ripple Current Performance — Rated ripple current values include 1.1 A at 120 Hz and 1.573 A at 50 kHz (frequency‑dependent coefficients apply), supporting AC ripple and switching power conditions.
• Electrical Loss & Leakage — tan δ maximum of 0.15 for 200–400 V ratings (measured at 120 Hz, 20 °C) and leakage current specified as I ≤ 3√(C×V) µA after 5 minutes at 20 °C.
• Package & Mounting — Snap‑in radial can for secure chassis or PCB mounting; physical size L: 4.5 × D: 3 cm with maximum seated height of 1.772 inches.
• Polarized Device — Polarized aluminum electrolytic design for DC energy storage and smoothing applications.
• Environmental Compliance — RoHS compliant (2011/65/EU, (EU)2015/863).

Typical Applications

• High‑voltage power supplies — Energy storage and smoothing where a 400 V rating and 270 µF capacitance are required to stabilize DC rails.
• Industrial power electronics — Long‑life filter and bulk capacitors for equipment operating at elevated temperatures up to 105 °C.
• DC link and energy storage — Applications that benefit from the combination of high voltage rating, substantial capacitance, and rated ripple current capability.

Unique Advantages

• 10,000‑hour high‑temperature life: Designed to meet endurance requirements at 105 °C, reducing maintenance and replacement frequency in hot environments.
• High voltage capability: 400 V rating enables use in higher‑voltage power systems without series stacking.
• Frequency‑aware ripple handling: Published ripple current values and frequency coefficients allow predictable performance across switching and low‑frequency conditions.
• Compact snap‑in form factor: Radial snap‑in can and defined dimensions (L: 4.5 × D: 3 cm) simplify mechanical integration and secure mounting.
• Measured electrical stability: Specified tan δ and leakage limits provide verifiable loss and leakage behavior for design validation.
• RoHS compliant: Meets applicable environmental directive requirements for restricted substances.

Why Choose LGR2G271MELB45?

The LGR2G271MELB45 balances high voltage, substantial capacitance and long operational life in a snap‑in aluminum electrolytic package. It is well suited to designers needing a durable, RoHS‑compliant capacitor for high‑voltage DC filtering and energy storage that must withstand elevated ambient temperatures and continuous ripple stress.

Choose this part for general‑purpose and industrial power designs where predictable endurance, defined electrical parameters and a compact snap‑in mounting solution contribute to long‑term system reliability and simplified mechanical integration. Backed by Nichicon's LGR series specifications, the part offers traceable performance data for engineering validation.

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