LGW2E681MELA40

The LGW2E681MELA40 is a snap‑in terminal aluminum electrolytic capacitor offering 680 µF capacitance at a 250 V rating. It is a 105°C, high ripple current design intended for general‑purpose power applications.

Built for sustained ripple performance, this part is specified to withstand 3000 hours of rated ripple current at 105°C and is compliant with the RoHS directive (2011/65/EU,(EU)2015/863).

Key Features

• Capacitance & Voltage: 680 µF nominal capacitance with a 250 V rated voltage and ±20% tolerance at 120 Hz, 20°C.
• High Ripple Current & Endurance: Designed for high ripple current; specified to withstand 3000 hours of rated ripple current at 105°C. Measured ripple current examples include 2.55 A at 120 Hz and 3.825 A at 50 kHz.
• Wide Operating Temperature: Rated for operation from −40°C to +105°C for the 200–250 V range, delivering reliable performance across typical industrial temperature profiles.
• Leakage Current Specification: Leakage current meets the series specification I ≤ 3√CV (µA) after 5 minutes' application of rated voltage at 20°C, supporting low standby loss requirements.
• Low‑temperature Stability: Series impedance characteristics show Z(−25°C)/Z(+20°C) ≤ 3 and Z(−40°C)/Z(+20°C) ≤ 12 for the 200–250 V range, aiding performance in colder environments.
• Robust Mechanical Design: Snap‑in, radial can package (L: 4 × D: 2.5 cm) with a seated height max of 1.575 inch for secure mounting in high‑power assemblies.
• Polarized, General‑Purpose: Polar capacitor intended for general‑purpose use where a high‑voltage electrolytic solution is required.
• RoHS Compliant: Conforms to RoHS (2011/65/EU,(EU)2015/863) requirements for environmental compliance.

Typical Applications

• General‑purpose power systems: Smoothing and energy storage in AC/DC and DC/DC converters where sustained ripple handling is required.
• Industrial power equipment: Bulk filtering and ripple mitigation in high‑voltage industrial power supplies and control systems.
• Power conversion modules: Output filtering for high‑voltage switching supplies that require high ripple endurance at elevated temperatures.

Unique Advantages

• Sustained high‑ripple capability: Specified endurance of 3000 hours at rated ripple and 105°C provides predictable life under continuous ripple stress.
• Frequency‑responsive ripple handling: Measured ripple current ratings at both low and high frequencies (e.g., 2.55 A at 120 Hz and 3.825 A at 50 kHz) support designs across switching and line‑frequency domains.
• Temperature resilience: Broad −40°C to +105°C operating range for the 200–250 V class helps maintain performance across varying ambient conditions.
• Secure, serviceable mounting: Snap‑in radial can package simplifies assembly and provides robust mechanical retention in power racks and chassis.
• Measurable leakage performance: Leakage current limits (I ≤ 3√CV) are provided for predictable standby characteristics and easier thermal budgeting.
• Regulatory compliance: RoHS conformity supports use in regulated markets and product portfolios requiring restricted‑substance compliance.

Why Choose LGW2E681MELA40?

The LGW2E681MELA40 is positioned for engineers who need a high‑voltage, high‑ripple electrolytic capacitor that delivers long‑term stability at elevated temperatures. Its 250 V rating, 680 µF capacitance, and 105°C endurance specification make it a practical choice for power supplies and industrial power modules that demand sustained ripple handling.

This part is well suited to designs prioritizing predictable lifecycle behavior under continuous ripple stress, mechanical robustness via snap‑in mounting, and compliance with RoHS environmental requirements.

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