LAR2G271MELA40

The LAR2G271MELA40 is an aluminum electrolytic capacitor in a snap‑in terminal, radial can package designed for general‑purpose high‑voltage applications. It provides 270 µF capacitance at a 400 V rated voltage with a compact φ25 × 40 mm form factor and polarized construction.

Built for durability under elevated temperatures, this LAR series part withstands 2,000 hours of rated ripple‑current application at 105°C and includes safety measures to reduce short incidence under overvoltage (rated voltage × 1.5). The device is RoHS compliant.

Key Features

• High voltage, high capacitance: 270 µF nominal capacitance at a 400 V rated voltage for bulk energy storage and smoothing in high‑voltage circuits.
• Snap‑in radial can package: Snap‑in terminal mounting and radial can case (φ25 × 40 mm, L: 4 cm × D: 2.5 cm) for robust board or chassis installation; polarized construction for correct polarity applications.
• Wide operating temperature: Specified for −25°C to +105°C operation, enabling use in elevated temperature environments.
• Long endurance at high temperature: Endurance rating of 2,000 hours at 105°C with rated ripple current applied; capacitance change remains within ±20% after the test.
• Ripple current capability: Rated ripple current of 1.22 A at 120 Hz and 1.745 A at 50 kHz, supporting AC ripple handling in power stages.
• Leakage current spec: Initial leakage current meets I ≤ 3√(C·V) µA after 5 minutes at 20°C (C = µF, V = V), supporting predictable bias behavior.
• Loss and low‑temperature characteristics: Tangent of loss angle (tan δ) maximum 0.15 for 200–400 V range; impedance stability figures provided for low‑temperature performance (Z at −25°C and −40°C relative to +20°C).
• Safety under overvoltage: Series‑level safety performance reduces short incidence when 1.5× rated voltage is applied (pressure relief vent behavior and passing rate specified in the series datasheet).
• RoHS compliance: Compliant with RoHS directives (2011/65/EU and (EU)2015/863).

Typical Applications

• High‑voltage power supply filtering: 400 V rating and 270 µF capacitance provide bulk smoothing and energy storage for general‑purpose power supplies.
• Industrial power electronics: Snap‑in mounting and high ripple endurance make it suitable for power conversion and industrial equipment where robust electrolytic filtering is required.
• DC bus and energy buffering: Polarized, high‑voltage capacitance supports DC bus stabilization and intermediate energy storage in general‑purpose designs.

Unique Advantages

• High voltage and substantial capacitance: Enables reduced part counts for bulk filtering at 400 V while maintaining compact radial can footprint.
• Thermal endurance: 2,000‑hour rated ripple test at 105°C demonstrates sustained performance under elevated temperature and ripple stress.
• Predictable leakage behavior: Leakage current specified as I ≤ 3√(C·V) µA after initial charge, aiding bias and power‑up planning.
• Designed for safety under overvoltage: Series‑level measures reduce short incidence when subjected to 1.5× rated voltage, improving system reliability in abnormal conditions.
• RoHS compliant: Meets current RoHS directives for use in regulated markets and designs.

Why Choose LAR2G271MELA40?

LAR2G271MELA40 combines a high 400 V rating with substantial 270 µF capacitance in a snap‑in radial can package engineered for long‑term ripple endurance at elevated temperature. Its specified leakage, loss characteristics, and overvoltage safety behavior provide predictable performance for engineers designing general‑purpose high‑voltage power circuits.

This part is suited to designers and procurement teams seeking a robust, RoHS‑compliant electrolytic solution for power supply filtering, DC bus buffering, and other high‑voltage general‑purpose applications where thermal endurance and mounting robustness matter.

Please request a quote or contact sales to obtain pricing, availability, and ordering information for LAR2G271MELA40.