LGM2W391MELB35

The LGM2W391MELB35 is an aluminum electrolytic capacitor in a snap‑in terminal radial can, offering 390 µF capacitance at 450 V. It is part of Nichicon’s LGM series and is designed to deliver high‑voltage bulk capacitance in a compact footprint (30 mm diameter × 35 mm length).

Engineered for general‑purpose power applications and equipment downsizing, the part is RoHS compliant and rated for operation from −25 °C to +105 °C with a specified endurance of 2000 hours at 105 °C.

Key Features

• Capacitance & Voltage — Rated at 390 µF and 450 V for high‑voltage bulk energy storage and filtering.
• Compact Snap‑In Package — Radial, snap‑in can (30 × 35 mm) providing a one‑rank smaller case size than the LGL series, suited for reduced footprint designs.
• Temperature & Endurance — Operating range −25 °C to +105 °C with 2000 hours endurance at 105 °C under rated DC bias plus ripple current.
• Ripple Current Capability — Rated ripple current of 900 mA at 120 Hz; frequency ripple characteristics include a measured 1.287 A at 100 kHz (per product data).
• Tolerance & Polarization — Capacitance tolerance ±20% (120 Hz, 20 °C); polarized electrolytic construction.
• Electrical Characteristics — Leakage current specified as I ≤ 3√(C·V) µA after 5 minutes at 20 °C; tan δ ≤ 0.20 at 120 Hz, 20 °C.
• Environmental Compliance — Compliant to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• General‑Purpose Power Modules — Bulk capacitance and smoothing in power supplies where 450 V ratings are required.
• Equipment Downsizing — Reduced case size (one rank smaller than LGL) for designers targeting smaller power assemblies and denser layouts.
• Industrial and Commercial Power Designs — Suitable where long‑term endurance at elevated temperature (105 °C, 2000 h) and high ripple current capability are needed.

Unique Advantages

• Compact high‑voltage bulk capacitance: 390 µF at 450 V in a 30 × 35 mm snap‑in can delivers substantial energy storage in a smaller footprint.
• Designed for downsized assemblies: One rank smaller case size compared with LGL supports tighter board real estate and more compact product designs.
• High‑temperature endurance: Rated for continuous operation up to 105 °C with a 2000‑hour endurance specification under rated conditions for reliable long‑term performance.
• Measurable ripple handling: 900 mA at 120 Hz and specified high‑frequency ripple performance (1.287 A at 100 kHz) for demanding power applications.
• Verified electrical limits: Clear leakage current formula and tan δ limit (0.20 max at 120 Hz, 20 °C) enable predictable behavior in design validation.
• RoHS compliance: Conforms to RoHS directives (2011/65/EU, (EU)2015/863) for restricted substance requirements.

Why Choose LGM2W391MELB35?

The LGM2W391MELB35 delivers a balance of high‑voltage capacitance, compact snap‑in packaging, and documented endurance suitable for designers who need reliable bulk capacitance in space‑constrained power systems. Its defined electrical parameters—leakage current, tan δ, and ripple current ratings—support predictable integration into power supply and industrial applications.

As part of Nichicon’s LGM series, this capacitor is intended for engineers seeking a proven aluminum electrolytic solution with clear specifications for temperature, lifetime and ripple performance, enabling robust designs with predictable long‑term behavior.

Request a quote or submit a pricing and availability inquiry for LGM2W391MELB35 to check lead times and quantities for your next design.