LGC2H391MELC40

The LGC2H391MELC40 is a Nichicon LGC series aluminum electrolytic capacitor in a snap‑in radial can package. It delivers 390 µF nominal capacitance at a 500 V rated voltage with a compact φ35 × 40 mm can and snap‑in terminals for robust board mounting.

Engineered for long life at elevated temperature, this part is rated for operation from −40 °C to +105 °C with a 5,000 hour endurance at 105 °C. The LGC series is RoHS compliant and designed to enable equipment downsizing with a smaller case profile versus larger series options.

Key Features

• Capacitance & Tolerance — 390 µF nominal with ±20% tolerance (120 Hz, 20 °C).
• High Voltage Rating — 500 V rated voltage suitable for high‑voltage DC applications.
• Long Life Endurance — Specified for 5,000 hours at 105 °C under rated D.C. bias plus rated ripple current.
• Low‑loss Performance — Tangent of loss angle (tan δ) maximum 0.25 at 120 Hz, 20 °C.
• Leakage Current — 1,320 µA specified leakage current after voltage application at 20 °C.
• Ripple Current Capability — 1.82 A at 120 Hz (low frequency) and 2.603 A at 50 kHz (high frequency).
• Operating Temperature Range — −40 °C to +105 °C.
• Package & Mounting — Radial, can‑type snap‑in terminals; nominal dimensions φ35 × 40 mm (L: 4.0 × D: 3.5 cm).
• Regulatory — RoHS compliant.

Typical Applications

• General‑purpose power systems — Bulk energy storage and smoothing in general‑purpose equipment requiring 500 V rated capacitors.
• Compact, high‑voltage designs — Smaller case size (one rank smaller than LGX) to support equipment downsizing where board space and height are constrained.
• Industrial and commercial electronics — Long‑life, high‑voltage capacitor for sustained operation at elevated temperature environments.

Unique Advantages

• High voltage capability: 500 V rating enables use in higher DC bus and energy storage applications without series stacking.
• Designed for long service life: 5,000 hours endurance at 105 °C supports reliability in sustained high‑temperature operation.
• Compact snap‑in package: φ35 × 40 mm can and snap‑in terminals provide mechanical stability and help reduce installed footprint compared with larger cans in the family.
• Strong ripple handling: Specified ripple currents of 1.82 A (120 Hz) and 2.603 A (50 kHz) accommodate both low‑ and high‑frequency ripple environments.
• Predictable electrical characteristics: Specified tan δ (0.25 max at 120 Hz, 20 °C) and defined leakage current support predictable behavior in precision designs.
• RoHS compliant: Meets RoHS directive requirements for environmental compliance.

Why Choose LGC2H391MELC40?

The LGC2H391MELC40 combines a 500 V rating and substantial 390 µF capacitance with a compact snap‑in can and long 5,000 hour life at 105 °C, offering a balance of energy density, reliability, and thermal endurance. Its defined ripple current ratings and low‑loss characteristics make it a practical choice for designers needing a high‑voltage electrolytic that supports compact equipment layouts.

Manufactured by Nichicon as part of the LGC series, this part is targeted at engineers and procurement teams seeking a verified, RoHS compliant aluminum electrolytic solution for long‑life, high‑voltage applications in industrial and commercial equipment.

Request a quote or submit an inquiry to receive pricing and availability for the LGC2H391MELC40 and to discuss how it can fit your design requirements.