LGN2G271MELA40

The LGN2G271MELA40 is a snap‑in terminal aluminum electrolytic capacitor rated at 400 V and 270 µF, designed for general‑purpose electronic applications that require high‑voltage bulk capacitance in a compact snap‑in can. It is specified for operation up to 105°C and is built to withstand extended ripple‑current duty with a 3000‑hour endurance at 105°C.

Key Features

• Capacitance & Voltage — 270 µF nominal capacitance at a 400 V rated voltage, with capacitance tolerance of ±20%.
• High‑temperature Endurance — Endurance specified as 3000 hours at 105°C under D.C. bias plus rated ripple current; after test, capacitance change remains within ±20%, tan δ within 200% of initial, and leakage current meets the initial specified value.
• Ripple Current Capability — Rated ripple current of 1.22 A at 120 Hz and 1.745 A at 100 kHz for sustained AC stress handling.
• Temperature Range — Operating temperature range of −25°C to 105°C for the 400 V product class.
• Snap‑in, Radial Can Package — Snap‑in terminal mounting for robust board attachment; compact physical footprint with dimensions L: 4 × D: 2.5 cm and a maximum seated height of 1.575 inches.
• Leakage Current Specification — Leakage current follows the series guideline I ≤ 3/√C (µA) after 5 minutes application of rated voltage at 20°C, consistent with the LGN series specification.
• RoHS Compliant — Conforms to the RoHS directive (2011/65/EU, (EU)2015/863).
• One‑rank Smaller Case — Designed one case size smaller than the LGU series, enabling denser packing where space is limited within the same performance class.

Typical Applications

• General‑Purpose Power Electronics — Bulk energy storage and smoothing in circuits requiring a 400 V, high‑temperature capacitor.
• High‑Voltage DC Link and Filtering — Handling DC bias plus rated ripple current for stable filtering performance at elevated temperatures.
• Industrial Equipment — Use in industrial electronic modules where a compact, high‑voltage snap‑in capacitor is needed for extended thermal endurance.

Unique Advantages

• Extended High‑Temperature Life: 3000 hours endurance at 105°C provides predictable long‑term behavior under sustained thermal and ripple stress.
• Compact Footprint: One rank smaller case than the LGU series lets designers save board space without sacrificing rated voltage or endurance.
• Measured Ripple Performance: Specified ripple current at both 120 Hz and 100 kHz allows designers to size capacitors against real operating ripple conditions.
• Robust Mounting: Snap‑in radial can package affords secure mechanical attachment for high‑vibration or high‑stress enclosures.
• Predictable Electrical Limits: Leakage current and tan δ specifications (including the I ≤ 3/√C guideline) support reliable end‑of‑life and maintenance planning.
• Regulatory Compliance: RoHS conformity ensures compatibility with restricted‑substance requirements.

Why Choose LGN2G271MELA40?

The LGN2G271MELA40 positions itself as a compact, high‑voltage snap‑in solution for designs that demand reliable bulk capacitance at elevated temperatures. Its 400 V rating, defined ripple‑current specs, and 3000‑hour 105°C endurance make it suitable for engineers targeting long‑running power stages and industrial modules where thermal stress and ripple duty are key design drivers.

This part is ideal for customers who need a RoHS‑compliant, polarized aluminum electrolytic in a smaller case size than the LGU series—providing space savings while retaining predictable electrical performance and lifetime characteristics as defined in the LGN series datasheet.

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