LAK2G271MELB40

The LAK2G271MELB40 is a snap‑in terminal aluminum electrolytic capacitor in Nichicon’s LAK series, rated 400 V and 270 µF. It is a general‑purpose power capacitor designed for board‑level applications that require robust ripple endurance and heightened tolerance to voltage fluctuations.

Key value propositions include a 105°C endurance specification with 2000 hours of rated ripple current application, built‑in safety measures for abnormal overvoltage conditions, and RoHS compliance for regulated environments.

Key Features

• Capacitance & Voltage — 270 µF nominal capacitance with a 400 V rated voltage and ±20% tolerance for bulk energy storage and filtering in high‑voltage circuits.
• High‑Temperature Endurance — Specified lifetime of 2000 hours at 105°C when subjected to rated ripple and DC bias, enabling use in elevated temperature operating environments.
• Ripple Current Capability — Rated ripple handling of 980 mA at 120 Hz and 1.127 A at 10 kHz, supporting both low‑ and high‑frequency filtering requirements.
• Package & Mounting — Radial can with snap‑in terminals for secure, board‑level mechanical retention and straightforward assembly.
• Safety Features — Designed with permissive abnormal voltage characteristics and a pressure relief vent that operates under specified conditions to avoid dangerous failures.
• Operating Range & Polarity — Polarized device with an operating temperature range of -25 °C to +105 °C.
• Regulatory — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Industrial Power Supplies — Bulk filtering and smoothing in power supplies used in environments with fluctuating input voltages.
• Commercial UPS and Chargers — Energy storage and ripple suppression where sustained high‑voltage operation and elevated temperatures are present.
• Power Conversion Modules — DC link and smoothing applications in converters and inverters that require high ripple endurance at 400 V.

Unique Advantages

• Proven High‑Temperature Endurance: 2000 hours at 105 °C under rated ripple current helps ensure long service life in heat‑stressed designs.
• High Voltage Handling: 400 V rating allows use in higher‑voltage power rails without up‑rating arrays of lower‑voltage parts.
• Dual‑Frequency Ripple Performance: Specified ripple current at both 120 Hz and 10 kHz supports a range of filtering and decoupling scenarios.
• Robust Mechanical Mounting: Snap‑in radial can simplifies board retention and mechanical stability in power assemblies.
• Safety‑Oriented Design: Permissible abnormal voltage features and a pressure relief vent reduce the risk of hazardous failure modes under overvoltage stress.
• Regulatory Compliance: RoHS compliance supports deployment in regulated markets and assemblies.

Why Choose LAK2G271MELB40?

The LAK2G271MELB40 combines a high 400 V rating with 270 µF of capacitance and verified ripple performance to meet demanding filtering and energy‑storage needs in power electronics. Its 2000‑hour endurance at 105 °C and safety‑focused construction make it well suited to industrial and commercial systems exposed to temperature and voltage variability.

This part is a practical choice for design and procurement teams building converters, power supplies, and other board‑level power assemblies that require reliable high‑voltage electrolytic capacitors with clear, verifiable electrical and environmental specifications.

Request a quote or submit a pricing inquiry for part number LAK2G271MELB40 to receive availability and lead‑time information for your project needs.