LAR2G271MELB30

The LAR2G271MELB30 is a Nichicon LAR series aluminum electrolytic capacitor in a snap-in terminal (radial can) package, rated at 400 V and 270 µF. Designed for general-purpose power applications, it delivers bulk capacitance with a compact φ30 × 30L footprint and polarized construction.

Key value lies in extended high-temperature endurance and safe behavior under overvoltage conditions: it withstands 2000 hours of rated ripple current at 105°C and is engineered to reduce short incidence when exposed to 1.5× rated voltage. The part is RoHS compliant.

Key Features

• Capacitance & Voltage — 270 µF rated capacitance at 400 V for bulk energy storage and filtering in general-purpose power circuits.
• High-Temperature Endurance — Specified to withstand 2000 hours of rated ripple current at 105°C, with capacitance change within ±20% after the endurance test.
• Overvoltage Safety Design — Reduced incidence of shorts when subjected to 1.5× rated voltage; safety performance specifies that a majority of capacitors pass defined overvoltage conditions without short or flame.
• Ripple Current Capability — Rated ripple current of 1.22 A at 120 Hz and 1.745 A at 50 kHz; frequency coefficients provided in the series datasheet allow ripple performance scaling by operating frequency.
• Leakage Current Specification — Leakage current meets I ≤ 3√(C·V) μA after 5 minutes at 20°C, enabling predictable standby and idle behavior.
• Package & Mounting — Radial, snap-in can package (φ30 × 30L) for mechanical stability in chassis and panel-mounted power assemblies.
• Temperature & Tolerance — Operating temperature range −25°C to +105°C with capacitance tolerance ±20% (120 Hz, 20°C).
• Environmental Compliance — RoHS directive compliant (2011/65/EU, (EU)2015/863).

Typical Applications

• General-purpose power supplies — Bulk filtering and energy storage where 400 V voltage rating and 270 µF capacitance are required.
• Industrial power electronics — Use in assemblies that must tolerate elevated operating temperatures up to 105°C and sustained ripple current.
• Commercial electrical equipment — Stabilizing DC rails and smoothing high-voltage power lines in general-purpose equipment.

Unique Advantages

• Extended high-temperature life: 2000-hour rated ripple endurance at 105°C supports designs that operate in warm or thermally constrained environments.
• Overvoltage robustness: Engineered reduction of short incidence under 1.5× rated voltage improves safety margins in stressed systems.
• Predictable ripple behavior: Published ripple current ratings at 120 Hz and 50 kHz, plus frequency coefficients in the series datasheet, help size the capacitor to expected operating conditions.
• Compact snap-in form factor: φ30 × 30L radial can with snap-in terminals simplifies mechanical assembly and provides secure retention in power modules.
• Measured leakage specification: Leakage current defined by I ≤ 3√(C·V) μA provides predictable leakage performance for system power budgeting.
• Regulatory compliance: RoHS conformity supports use in regions requiring restricted-substance compliance.

Why Choose LAR2G271MELB30?

The LAR2G271MELB30 positions itself as a reliable, general-purpose high-voltage electrolytic solution for engineers needing 400 V bulk capacitance with proven high-temperature endurance. Its combination of 270 µF capacitance, validated ripple capability, and overvoltage safety characteristics make it suitable for power systems that demand stable performance under thermal and electrical stress.

Engineers and purchasers designing or maintaining industrial and commercial power equipment will find the LAR2G271MELB30 offers clear, verifiable specifications for endurance, leakage, and ripple handling, backed by the Nichicon LAR series technical data.

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