LGL2G391MELA40

The LGL2G391MELA40 is a snap‑in terminal aluminum electrolytic capacitor in Nichicon’s LGL series. It provides 390 µF capacitance at a 400 V rating in a compact 25 mm × 40 mm can for general‑purpose applications.

Engineered for high ripple handling and extended high‑temperature endurance, this part is specified for operation from -25°C to 105°C and a rated life of 2000 hours at 105°C, making it suited for designs that require stable bulk capacitance and defined endurance under elevated temperature and DC bias conditions.

Key Features

• Capacitance & Voltage — 390 µF nominal capacitance with a 400 V rated voltage, tolerance ±20% (measured at 120 Hz, 20°C).
• Snap‑in Can Package — Radial, can-style snap‑in mounting provides secure board attachment for power assemblies where snap‑in terminals are required.
• High Ripple Capability — Rated ripple current 1.23 A at 120 Hz (low frequency) and 1.759 A at 50 kHz (high frequency), supporting applications with significant AC ripple on DC rails.
• Leakage and Loss — Leakage current ~1.18 mA (specified) and tan δ ≤ 0.15 at 120 Hz, 20°C for 400 V parts, providing predictable loss and leakage behavior.
• Temperature & Life — Operating range −25°C to +105°C with an endurance rating of 2000 hours at 105°C under DC bias plus rated ripple current.
• Tray Packing & Production Status — Supplied in tray packing and available for mass production.

Typical Applications

• General‑purpose power filtering — Provides bulk capacitance and ripple handling for general‑purpose circuits requiring a 400 V electrolytic.
• High‑voltage DC link or bulk storage — Snap‑in mounting and 400 V rating suit applications that require compact bulk capacitance at elevated voltage.
• Industrial and commercial power assemblies — Designed for general‑purpose use in assemblies where defined endurance at 105°C is required.

Unique Advantages

• High voltage handling: 400 V rated voltage supports higher‑voltage DC circuits without additional series stacking.
• Compact snap‑in form factor: 25 mm × 40 mm can with snap‑in terminals simplifies mechanical integration and secure PCB mounting.
• Measured ripple performance: Specified ripple currents at both low (1.23 A at 120 Hz) and high frequency (1.759 A at 50 kHz) give predictable thermal and electrical behavior across common ripple spectra.
• Defined high‑temperature endurance: 2000 hours at 105°C under DC bias plus rated ripple current provides a clear reliability expectation for elevated‑temperature use.
• Controlled leakage and loss: Leakage current (~1.18 mA) and tan δ ≤ 0.15 at 120 Hz help manage standby dissipation and dielectric loss in power designs.
• Production ready: Tray packing and mass production availability streamline procurement and assembly planning.

Why Choose LGL2G391MELA40?

The LGL2G391MELA40 offers a balance of high‑voltage capability, compact snap‑in packaging, and defined endurance at elevated temperature, making it well suited for engineers specifying a 400 V, 390 µF electrolytic for general‑purpose power applications. Its documented ripple, leakage, and tan δ figures enable predictable thermal and electrical design margins in assemblies where bulk capacitance and long‑term stability at 105°C are important.

This part is appropriate for teams and procurement groups seeking a production‑ready aluminum electrolytic with clear performance specifications and tray packing for streamlined assembly.

Request a quote or submit your specifications to our sales team to receive pricing and lead‑time information for the LGL2G391MELA40.