LGY1H392MELB25

The LGY1H392MELB25 is a snap-in terminal type aluminum electrolytic capacitor from Nichicon’s LGY series designed for long-life industrial applications. It delivers 3,900 µF nominal capacitance at a 50 V rating with polar construction and is intended for general-purpose power applications where extended high-temperature endurance is required.

Key value propositions include long life at elevated temperature, robust ripple-current capability across low and high frequencies, and a compact radial snap-in can package suitable for high-reliability power stages and ballast or industrial power supply use.

Key Features

• Capacitance & Voltage — 3.9 mF (3,900 µF) nominal capacitance with a 50 V rated voltage and ±20% tolerance (–20%~20%).
• Power / Ripple Handling — Low-frequency ripple current 1.9 A at 120 Hz and high-frequency ripple current 2.185 A at 50 kHz, enabling sustained ripple dissipation in power supply and ballast circuits.
• Dielectric Loss (tan δ) — tan δ = 0.3 measured at 20°C, 120 Hz, supporting predictable impedance and dissipation characteristics under specified conditions.
• Leakage Current — Specified leakage current of 1,320 µA under the stated measurement conditions.
• Long-Life Endurance — Rated for 5,000 hours at 105°C, meeting the LGY series’ long-life assurance for extended high-temperature operation.
• Temperature Range — Operates from –40°C to +105°C to accommodate a wide range of industrial environments.
• Package & Mounting — Snap-in terminal, radial can (snap-in) package; size listed as φ30 × 25L and SizeDimension given as L: 2.5 × D: 3 cm; supplied in tray packing, mass-production status.
• Regulatory — RoHS compliant.

Typical Applications

• Industrial Power Supplies — Provides bulk energy storage and ripple smoothing in industrial DC power modules where long life and elevated-temperature endurance are required.
• Ballasts — Suited for ballast applications noted in the LGY series documentation, offering sustained ripple handling and high-temperature reliability.
• General Purpose Power Filtering — Used for bulk filtering and decoupling in power conversion stages and power distribution where polarized electrolytic capacitors are appropriate.

Unique Advantages

• Long high-temperature endurance: Rated for 5,000 hours at 105°C, supporting extended service life in demanding thermal environments.
• Robust ripple capability: High low- and high-frequency ripple current ratings (1.9 A at 120 Hz; 2.185 A at 50 kHz) help manage AC stress in power circuits.
• Predictable dissipation characteristics: Specified tan δ (0.3 at 20°C, 120 Hz) and defined leakage current (1,320 µA) enable deterministic thermal and loss budgeting.
• Board-ready snap-in package: Radial snap-in can construction and tray packing facilitate installation for through-hole power designs.
• Wide operating temperature range: –40°C to +105°C supports use across a variety of industrial ambient conditions.
• RoHS compliance: Meets RoHS directive requirements for lead-free materials.

Why Choose LGY1H392MELB25?

The LGY1H392MELB25 is positioned for designs that require a high-capacitance, polarized aluminum electrolytic with demonstrable long-life performance at elevated temperature. Its combination of 3,900 µF at 50 V, defined ripple-current ratings across frequencies, and a 5,000-hour endurance at 105°C make it suitable for industrial power supplies, ballast circuits, and other power-filtering roles where reliability and predictable electrical behavior matter.

This part suits engineers and procurement teams specifying components for robust power systems that need documented thermal endurance, measurable dissipation and leakage characteristics, and a snap-in radial package supplied in tray packing for production builds.

To request a quote, check availability, or submit an inquiry for LGY1H392MELB25, please contact our sales team or submit a quote request specifying the part number and quantity required.