LGW2E681MELZ50

The LGW2E681MELZ50 is a snap-in terminal aluminum electrolytic capacitor designed for high ripple current applications. It delivers 680 µF at 250 V in a radial can snap-in package, optimized for robust ripple endurance and general-purpose power management.

Key value comes from its high ripple-current capability and proven endurance: the capacitor withstands 3000 hours of rated ripple current at 105°C while remaining RoHS compliant. Its operating temperature range and polarized design make it suitable for demanding power-filtering roles in industrial and general-purpose electronics.

Key Features

• Capacitance and Voltage: 680 µF rated capacitance at 250 V for bulk smoothing and energy storage in power circuits.
• Snap-in Terminal Package: Radial, can-type snap-in mounting for secure board attachment and robust mechanical retention.
• High Ripple Current & Endurance: Designed for high ripple environments and specified to withstand 3000 hours of rated ripple current at 105°C.
• Operating Temperature: Specified from −40 °C to 105 °C to support high-temperature operation and broad thermal ranges.
• Ripple Current Performance: Rated ripple current of 2.55 A at 120 Hz and 3.825 A at 50 kHz, supporting both low- and high-frequency ripple loads.
• Leakage Current Specification: Leakage current meets the series specification I ≤ 3√CV (µA) after 5 minutes at 20 °C, enabling predictable standby behavior.
• Tolerance & Polarization: Polarized capacitor with capacitance tolerance of −20% to +20% (±20% typical), for standard electrolytic selection practices.
• RoHS Compliant: Conforms to RoHS directive requirements (2011/65/EU, (EU)2015/863).
• Compact Dimensions: Physical size listed as L: 5 × D: 2.2 cm, suitable for dense power assemblies requiring snap-in cans.

Typical Applications

• Power supply filtering: Bulk smoothing and ripple suppression in general-purpose power supplies where sustained ripple endurance is required.
• Industrial power systems: Energy storage and decoupling in industrial power electronics that operate at elevated temperatures and sustained ripple loads.
• AC/DC converters and inverters: Handling of high ripple currents in converter output stages and energy-buffering circuits.

Unique Advantages

• Proven ripple endurance: 3000-hour rated ripple-current endurance at 105 °C reduces the need for over-specification and supports long-term operation under continuous ripple stress.
• High-frequency ripple capability: Specified ripple current at both 120 Hz (2.55 A) and 50 kHz (3.825 A) covers a wide range of switching and line-frequency conditions.
• Wide operating temperature: −40 °C to 105 °C rating enables use across broad thermal environments without changing component selection.
• Snap-in mounting: Radial snap-in package offers secure PCB retention for high-vibration or high-current board assemblies.
• Predictable leakage behavior: Leakage current conforms to the series formula I ≤ 3√CV (µA) for consistent standby and insulation characteristics.
• RoHS compliance: Environmentally compliant material selection for regulatory alignment in commercial and industrial products.

Why Choose LGW2E681MELZ50?

The LGW2E681MELZ50 targets engineers specifying reliable bulk capacitance with high ripple endurance in compact snap-in form. Its combination of 680 µF at 250 V, high-frequency ripple capability, and verified 3000-hour endurance at 105 °C provides predictable performance where sustained ripple and elevated temperatures are present.

This capacitor suits designs that require robust power filtering and energy buffering with a clear, verifiable specification set and RoHS compliance. It is appropriate for team selection when long-term ripple tolerance, mechanical retention, and thermal capability are design priorities.

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