LGY1J392MELA40

The LGY1J392MELA40 is a snap‑in terminal aluminum electrolytic capacitor from Nichicon’s LGY series, designed for long life performance at elevated temperatures. With a rated capacitance of 3.9 mF (3900 µF) at 63 V, a compact φ25 × 40 mm can and snap‑in mounting, it is intended for general‑purpose and industrial power applications where dependable bulk energy storage and ripple handling are required.

Key value propositions include long‑life endurance at 105°C, RoHS compliance, and package features that support robust assembly in power supply and ballast designs.

Key Features

• High capacitance and voltage: 3.9 mF (3900 µF) nominal capacitance at a rated voltage of 63 V, with tolerance ±20% (120 Hz, 20°C).
• 105°C long life assurance: Endurance specified for 5000 hours at 105°C with DC bias plus rated ripple current; capacitance change within ±25% after the endurance test.
• Robust ripple handling: Rated ripple current of 2.4 A at 120 Hz and 2.76 A at 50 kHz; frequency coefficients available for scaling ripple across frequencies (e.g., 1.00 at 120 Hz, 1.15 at 50kHz or more).
• Temperature range: Operational from −40°C to +105°C for broad environmental tolerance in industrial systems.
• Snap‑in radial package: φ25 × 40 mm radial can with snap‑in terminals for secure mounting and tray packing for production handling.
• Leakage and dissipation characteristics: Leakage current specified as I ≤ 3√(C·V) μA after 5 minutes at 20°C; tangent of loss angle (tan δ) maximum for 63 V is 0.25 (measured at 120 Hz, 20°C).
• RoHS compliant: Meets RoHS directive requirements as stated in the product series documentation.

Typical Applications

• Industrial power supplies — Bulk energy storage and smoothing where long life and high ripple endurance at elevated temperatures are required.
• Ballasts — Suited for ballast circuits that demand robust high‑temperature endurance and reliable capacitance over long operating periods.
• General purpose power filtering — Effective for bulk filtering and decoupling in equipment requiring a 63 V rated capacitor with snap‑in mounting.

Unique Advantages

• Designed for prolonged high‑temperature operation: Rated for 5000 hours at 105°C, enabling predictable performance in harsh thermal environments.
• Measurable ripple capacity: Defined ripple current ratings and frequency coefficients allow designers to size capacitors against real ripple spectra and ensure thermal stability.
• Standardized mounting and packaging: Snap‑in radial can and tray packing simplify PCB assembly and handling in volume production.
• Clear electrical limits: Specified leakage current formula and tan δ limits provide verifiable acceptance criteria for incoming inspection and design verification.
• Regulatory compliance: RoHS status included to support regulatory needs in global product builds.

Why Choose LGY1J392MELA40?

LGY1J392MELA40 combines high capacitance at 63 V with long‑life endurance at 105°C, making it a practical choice for industrial power systems and ballast applications where sustained ripple current and thermal reliability matter. Its snap‑in radial package and tray packing support efficient assembly and robust mechanical mounting for production environments.

This part is suited for design teams and procurement sourcing capacitors for medium‑voltage DC rails that require dependable bulk energy storage, clear electrical acceptance criteria, and compliance with RoHS directives. The LGY series documentation provides frequency coefficients, endurance and shelf‑life data to support design validation and long‑term use planning.

If you would like pricing, lead‑time details, or a formal quote, request a quote or submit an inquiry to discuss volume pricing, sample availability, and delivery options.