LGX2E821MELA45

The LGX2E821MELA45 is a snap‑in terminal aluminum electrolytic capacitor from Nichicon’s LGX series. It provides 820 µF capacitance at a 250 V rating in a compact radial, can‑snap‑in package, delivering long‑life performance for power electronics.

Designed for general-purpose power applications, this polarized capacitor is optimized for rectifier circuits in inverters and switching power supplies, where sustained ripple handling and elevated temperature endurance are required.

Key Features

• Capacitance and Voltage — 820 µF nominal capacitance with a 250 V rated voltage and ±20% tolerance at 120 Hz, 20 °C.
• High‑Temperature Long Life — Endurance rating of 5000 hours at 105 °C under rated ripple/current conditions to support extended service in elevated‑temperature power systems.
• Snap‑in, Radial Can Package — Snap‑in mounting for secure PCB installation; package listed as radial, can - snap‑in, suitable for high‑current rectifier circuits.
• Ripple Current Capability — Rated ripple current of 2.15 A at 120 Hz (low frequency) and 3.225 A at 50 kHz (high frequency), enabling use in applications with significant AC ripple content.
• Temperature Range and Stability — Operating range of -25 °C to 105 °C with specified low‑temperature impedance stability (Z(-25 °C)/Z(+20 °C) ≤ 4 for 200–250 V ratings).
• Reliability Metrics — Endurance criteria: after 5000 hours at 105 °C with DC bias plus rated ripple, capacitance change within ±20%, tan δ ≤ 200% of initial spec, and leakage current ≤ initial specified value.
• Leakage Current Specification — Leakage current limited by I ≤ 3√(C·V) μA after 5 minutes at 20 °C (C: μF, V: V), providing a verifiable acceptance criterion for selection and testing.
• Compliance — RoHS compliant (2011/65/EU, (EU)2015/863), meeting current substance‑restriction requirements.
• Physical Size — Compact dimensions: L: 4.5 × D: 2.5 cm, suitable for space‑conscious power module designs.

Typical Applications

• Inverter Rectifier Circuits — Used as DC smoothing and energy storage in rectifier stages of general inverters, where long life at elevated temperature is required.
• Switching Power Supplies — Bulk filtering and ripple suppression in SMPS designs that demand stable capacitance and rated ripple current at high operating temperatures.
• General Purpose Power Electronics — Applicable in industrial power modules and control equipment that require polarized bulk capacitors with defined endurance and leakage characteristics.

Unique Advantages

• Long, Specified High‑Temperature Life — 5000‑hour endurance at 105 °C supports predictable lifetimes in high‑temperature power environments.
• Verified Ripple Handling — Clear ripple current ratings at both 120 Hz and 50 kHz allow designers to match capacitor selection to expected frequency components in the circuit.
• Measurable Leakage and Loss Limits — Leakage current formula and tan δ limits provide objective acceptance criteria for quality control and end‑of‑life evaluation.
• Compact Snap‑in Form Factor — Radial snap‑in packaging combines mechanical robustness with a space‑efficient footprint for power assemblies.
• RoHS Compliance — Conforms to current environmental substance restrictions for global product deployment.

Why Choose LGX2E821MELA45?

LGX2E821MELA45 is positioned for designers who need a compact, high‑capacitance, high‑voltage electrolytic with defined long‑life and ripple specifications. Its combination of 820 µF at 250 V, verified ripple current ratings, and 5000‑hour endurance at 105 °C makes it suitable for robust rectifier and filtering roles in inverter and switching power applications.

Choosing this part delivers predictable electrical behavior (leakage current formula, tan δ limits, impedance stability) and RoHS compliance, supporting reliable, standards‑aware designs where long‑term performance and manufacturability matter.

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