LGX2E681MELA40

The LGX2E681MELA40 is a snap-in terminal aluminum electrolytic capacitor in Nichicon’s LGX series, offering 680 µF capacitance at a 250 V rating. It is designed for polarized, radial can mounting and provides long-life performance for power-electronics applications.

Engineered for high-temperature endurance, this capacitor withstands 5000 hours of rated ripple current at 105°C and is RoHS compliant. Typical use cases include rectifier stages in inverters and switching power supplies where compact, reliable bulk capacitance is required.

Key Features

• Capacitance & Voltage: 680 µF rated capacitance at 250 V provides bulk energy storage for power conversion and filtering.
• High-temperature long life: Endurance rated for 5000 hours at 105°C under DC bias plus rated ripple current, with defined post-test limits for capacitance, tan δ and leakage current.
• Ripple current capability: Rated ripple current of 2 A at 120 Hz and 3 A at 50 kHz to handle rectifier and switching ripple in power circuits.
• Package and mounting: Snap-in radial can (snap-in terminal type) for secure PCB mounting and simplified assembly in power modules.
• Operating range: Specified temperature range from −25°C to +105°C to cover typical industrial power environments.
• Mechanical size: Compact footprint with dimensions L: 4 × D: 2.5 cm and a maximum seated height of 1.575 inch for dense power assemblies.
• Electrical characteristics: Polarized construction with capacitance tolerance ±20% (at 120 Hz, 20°C) and leakage current defined per datasheet formula.
• RoHS compliance: Compliant to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Inverter rectifier circuits: Bulk and smoothing capacitance for rectifier stages in general inverter designs.
• Switching power supplies: Energy storage and ripple filtering in SMPS front ends and output stages.
• General-purpose power electronics: Polarized bulk capacitance for industrial power converters and power-conditioning modules.

Unique Advantages

• Proven long-life endurance: 5000-hour rating at 105°C gives designers predictable ageing behavior and defined end-of-life limits for capacitance, tan δ and leakage.
• High ripple handling: Explicit ripple current ratings at both low (120 Hz) and higher (50 kHz) frequencies support a range of rectifier and switching conditions.
• Compact snap-in form factor: Radial snap-in can minimizes board space while enabling robust mechanical retention for power assemblies.
• Wide operating temperature: −25°C to +105°C specification suits industrial environments where elevated operating temperatures are encountered.
• Clear electrical tolerances: ±20% capacitance tolerance and defined leakage/tan δ limits simplify design margining and verification.
• Regulatory compliance: RoHS-compliant construction supports eco-compliant product builds.

Why Choose LGX2E681MELA40?

LGX2E681MELA40 positions itself as a robust polarized bulk capacitor for designers of inverters, switching power supplies and general-purpose power electronics who require long-life performance at elevated temperatures. Its combination of 680 µF capacitance at 250 V, rated ripple currents, and a snap-in radial can offers a practical balance of electrical performance and PCB-friendly mounting.

Specified endurance limits and RoHS compliance provide clarity for long-term designs and regulatory requirements, making this part suitable for projects that demand reliable high-temperature operation and predictable end-of-life behavior.

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