LGX2E681MELZ50

The LGX2E681MELZ50 is a snap‑in terminal aluminum electrolytic capacitor from Nichicon's LGX series, designed for high‑temperature, long‑life power applications. It delivers 680 µF capacitance at a 250 V rating in a radial snap‑in can package suited for rectifier circuits in general inverters and switching power supplies.

Key value propositions include long‑life endurance at elevated temperature (5000 hours at 105°C under rated ripple conditions), defined ripple current performance across low and high frequencies, and RoHS compliance for environmental requirements.

Key Features

• Capacitance & Voltage: 680 µF nominal capacitance with a 250 V rated voltage and ±20% tolerance at 120 Hz, 20°C.
• High‑temperature long life: Endurance specified for 5000 hours at 105°C with DC bias plus rated ripple current; capacitance change is within ±20% after test.
• Ripple current capability: Rated ripple handling of 2 A at 120 Hz and 3 A at 50 kHz for applications with varying ripple frequency profiles.
• Operating temperature range: Specified for −25°C to +105°C to support high‑temperature power environments.
• Snap‑in radial can package: Snap‑in terminal mounting for robust board attachment; package dimensions L: 5.0 cm × D: 2.2 cm.
• Electrical stability: Leakage current after 5 minutes at 20°C follows I ≤ 3√CV (μA); tangent of loss angle tan δ max 0.15 (measured at 120 Hz, 20°C) for 200–400 V range.
• Low‑temperature impedance: Impedance ratio Z(−25°C)/Z(+20°C) specified (max 4 for 200–250 V), assisting low‑temperature performance planning.
• Marking & compliance: White print on black sleeve marking and RoHS compliance (2011/65/EU, (EU)2015/863).

Typical Applications

• Inverter rectifier stages: Designed for rectifier circuits in general inverter systems where high voltage and long‑life performance are required.
• Switching power supplies: Bulk smoothing and filtering in switching power supplies that operate at elevated temperatures and require sustained ripple handling.
• Industrial power electronics: General purpose power filtering and energy storage in industrial equipment and power conversion modules.

Unique Advantages

• Long‑term high‑temperature endurance: 5000 hours at 105°C under rated ripple ensures predictable aging and performance planning in hot operating environments.
• Frequency‑aware ripple performance: Specified ripple current at both 120 Hz (2 A) and 50 kHz (3 A) supports designs with diverse ripple profiles.
• Clear electrical limits for design margin: Defined leakage current formula (I ≤ 3√CV) and tan δ limits simplify margin calculations and QA checks.
• Compact snap‑in form factor: Radial snap‑in can with 5.0 cm × 2.2 cm footprint enables secure PCB mounting while conserving board area.
• RoHS compliance: Meets 2011/65/EU and (EU)2015/863 requirements for restricted substances.
• Visible polarity and identification: Printed white marking on a black sleeve for fast visual verification during assembly and inspection.

Why Choose LGX2E681MELZ50?

The LGX2E681MELZ50 is positioned for designs that require a durable, high‑voltage electrolytic capacitor with validated high‑temperature endurance. Its combination of 680 µF at 250 V, specified ripple handling at multiple frequencies, and a 5000‑hour endurance rating at 105°C makes it suitable for inverter rectifiers, switching supplies, and other power conversion circuits where long‑term reliability under thermal stress matters.

Engineers and purchasers will value the clearly defined electrical limits (leakage current formula, tan δ, impedance ratio) and RoHS compliance, enabling confident integration into industrial power systems while maintaining traceable, repeatable performance over product life.

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