LGW2E391MELA30

The LGW2E391MELA30 is a snap‑in terminal aluminum electrolytic capacitor designed for general‑purpose power applications requiring high ripple handling in a compact radial can. It provides 390 µF capacitance at a 250 V rating with polarized construction and RoHS compliance.

Purpose-built for systems operating across a wide temperature range, this part delivers extended endurance under ripple stress and is suitable where robust ripple current capability and long high‑temperature life are required.

Key Features

• Core Electricals: 390 µF nominal capacitance with a rated voltage of 250 V and capacitance tolerance of ±20% (at 120 Hz, 20°C).
• High Ripple Current: Specified ripple current of 1.95 A at 120 Hz and 2.925 A at 50 kHz, with frequency coefficients for 200–250 V showing 1.00 at 120 Hz and 1.50 at 50 kHz to guide ripple derating.
• Thermal Endurance: Rated operating temperature range from −40°C to +105°C and qualified to withstand rated ripple current for 3000 hours at 105°C.
• Package & Mounting: Snap‑in, radial can package in a 22 × 30 mm footprint (L × D), optimized for secure PCB mounting and high current paths.
• Polarized Construction: Designed as a polarized aluminum electrolytic capacitor for DC power applications.
• Regulatory Compliance: RoHS compliant per provided product information.

Typical Applications

• Power supply smoothing: Bulk capacitance and high ripple current capability make it suitable for smoothing and energy storage in AC‑DC and DC‑DC power supplies.
• High‑frequency ripple environments: Rated ripple specs at 120 Hz and 50 kHz enable use where significant AC ripple is present on DC rails.
• General industrial electronics: Polarized snap‑in construction and 105°C endurance support use in a range of industrial control and power modules.

Unique Advantages

• Designed for sustained ripple stress: Withstanding 3000 hours of rated ripple current at 105°C reduces the need for overspec’ing and supports predictable long‑term performance.
• Quantified ripple behavior across frequency: Published frequency coefficients allow engineers to calculate ripple derating from 50 Hz up through 50 kHz for accurate thermal and life planning.
• Compact snap‑in packaging: 22 × 30 mm radial can with snap‑in terminals provides a space‑efficient solution for high‑current PCB layouts.
• Wide operating temperature range: −40°C to +105°C operation covers common industrial temperature profiles while maintaining capacitance and leakage specifications.
• RoHS compliant: Meets RoHS requirements for applications with environmental compliance needs.

Why Choose LGW2E391MELA30?

The LGW2E391MELA30 combines substantial bulk capacitance with a 250 V rating and engineered high‑ripple endurance, offering a reliable choice for designers of power conversion and industrial electronics. Its snap‑in radial can and documented frequency ripple coefficients make it straightforward to integrate and predict performance under varied ripple and temperature conditions.

This part is suited to engineers and procurement teams who need a RoHS‑compliant, polarized aluminum electrolytic capacitor that balances compact packaging with quantified high‑temperature ripple life and measurable ripple current data for robust system design.

Request a quote or submit an inquiry to receive pricing, availability, and lead‑time information for the LGW2E391MELA30. Our team can provide additional technical details and support to help validate this capacitor in your design.