LGL2W271MELA40

The LGL2W271MELA40 is a snap‑in terminal aluminum electrolytic capacitor designed for general‑purpose power applications. It delivers 270 µF capacitance at a 450 V rating in a compact φ25 × 40 mm radial can with snap‑in mounting.

Engineered for elevated operating conditions, this capacitor supports an operating temperature range of –25°C to +105°C and a rated endurance of 2000 hours at 105°C, making it suitable for designs that require high voltage handling, bulk energy storage and robust ripple handling.

Key Features

• Capacitance & Voltage: 270 µF rated at 450 V — provides bulk energy storage and DC voltage support for high‑voltage power circuits.
• High Temperature Endurance: Rated for operation to 105°C with a specified lifetime of 2000 hours at 105°C; after endurance testing capacitance remains within ±20% and leakage remains at or below initial specified value.
• Snap‑in Terminal Package: Radial can with snap‑in terminals for secure board mounting and reliable mechanical retention in power assemblies.
• Ripple Current Capability: 930 mA at 120 Hz and 1.33 A at 50 kHz — supports significant AC ripple in power supply filtering and energy buffering applications.
• Leakage Current: Specified leakage current of 1040 µA (typical for this part number), meeting the product’s post‑applied voltage characteristic limits.
• Temperature Range & Stability: Operational range –25°C to +105°C with low‑temperature impedance characteristics defined for reliable performance across the specified range.
• Tolerance: ±20% at 120 Hz, 20°C — standard tolerance for general‑purpose electrolytic applications.

Typical Applications

• Power supply smoothing and filtering — bulk capacitance and rated ripple current make this part suitable for smoothing DC outputs and handling AC ripple in high‑voltage supplies.
• Energy storage for high‑voltage circuits — 270 µF at 450 V provides local energy reserve for transient demands in power conversion and control circuits.
• Industrial and commercial equipment — designed for general‑purpose use where high voltage rating and elevated temperature endurance are required.

Unique Advantages

• High voltage capability: 450 V rating supports high‑voltage designs without requiring series stacking or additional components.
• Compact snap‑in form factor: φ25 × 40 mm radial can with snap‑in terminals combines a small footprint with secure board retention for high‑density assemblies.
• Robust ripple handling: Specified ripple currents at both low and high frequencies and a frequency coefficient that increases allowable ripple at higher frequencies enable reliable AC performance.
• Temperature and endurance specification: Rated –25°C to +105°C with a 2000‑hour life at 105°C, providing predictable long‑term behavior under elevated thermal stress.
• Defined post‑test performance: Endurance and shelf‑life criteria specify limits for capacitance change, tan δ and leakage current, giving measurable parameters for reliability planning.

Why Choose LGL2W271MELA40?

The LGL2W271MELA40 positions itself as a reliable, general‑purpose aluminum electrolytic solution for high‑voltage power designs that require substantial bulk capacitance in a compact snap‑in package. Its combination of 450 V rating, 270 µF capacitance, defined ripple current performance and a 105°C endurance rating provides clear, verifiable performance characteristics for engineering and procurement evaluation.

This part is suited for designers and manufacturers building high‑voltage power supplies, converters and other equipment where predictable thermal endurance, leakage and ripple behavior matter. The documented endurance and leakage criteria support predictable lifecycle planning and inventory qualification.

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