LGR2G391MELC45

The LGR2G391MELC45 is a snap-in terminal aluminum electrolytic capacitor from Nichicon’s LGR long-life series. It delivers 390 µF capacitance at a 400 V rated voltage and is designed for sustained operation at elevated temperatures.

Engineered for general-purpose power electronics, this radial can (snap-in) capacitor provides long-life endurance — specified for 10000 hours at 105°C — and RoHS compliance for modern production requirements.

Key Features

• Capacitance & Voltage — 390 µF nominal capacitance with a 400 V rated voltage and ±20% tolerance, suitable where high-voltage bulk capacitance is required.
• Long-Life Endurance — Rated to withstand 10000 hours of DC bias plus rated ripple current at 105°C; capacitance change and leakage are specified after endurance testing per series data.
• High Temperature Operation — Operating temperature range is −25°C to +105°C (for 400 V/450 V ratings), enabling use in elevated-temperature environments.
• Snap-In Mounting — Radial can with snap-in terminals for secure mechanical retention in through-hole PCB assemblies.
• Ripple Current Performance — Rated ripple current of 1.3 A at 120 Hz and 1.859 A at 50 kHz as provided for this part; frequency coefficients for the LGR series are defined in the datasheet.
• Leakage and Loss Characteristics — Series leakage current follows I ≤ 3√(C·V) µA (after 5 minutes at 20°C); tan δ limits are specified for the rated voltage range.
• Environmental Compliance — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• General-Purpose Power Electronics — Bulk smoothing and filtering where 400 V rating and 390 µF capacitance are required.
• High-Temperature Environments — Applications that require sustained operation at up to 105°C with long-life endurance.
• Through-Hole, High-Voltage Designs — Designs using radial, snap-in capacitors for robust PCB retention and power-stage filtering.

Unique Advantages

• Long-term stability at elevated temperature: Specified endurance of 10000 hours at 105°C supports sustained performance in hot operating conditions.
• High-voltage bulk capacitance: 390 µF at 400 V delivers significant energy storage for high-voltage power rails.
• Measurable ripple capability: Published ripple current ratings at 120 Hz and 50 kHz allow designers to size capacitors against application ripple demands.
• Snap-in termination for secure mounting: Radial can with snap-in terminals simplifies mechanical retention in through-hole assemblies.
• RoHS compliant: Meets 2011/65/EU and (EU)2015/863 requirements for restricted substances.

Why Choose LGR2G391MELC45?

The LGR2G391MELC45 combines high-voltage capability (400 V) and substantial capacitance (390 µF) with long-life assurance — specified for 10000 hours at 105°C — making it well suited for demanding power-electronics applications that require durable bulk energy storage and filtering. Its snap-in radial can package and defined ripple current ratings provide clear, application-relevant specifications for engineering design and procurement.

This part is appropriate for engineers and buyers focused on reliable, long-life aluminum electrolytic solutions for general-purpose power systems, especially where elevated operating temperatures and RoHS compliance are required.

If you need pricing, availability, or a formal quote for LGR2G391MELC45, request a quote or submit an inquiry with the part number to receive sales and technical assistance.