LGU1J392MELB

The LGU1J392MELB is a Nichicon LGU series aluminum electrolytic capacitor in a snap‑in terminal radial can. It provides 3.9 mF (3900 µF) capacitance at a 63 V rating with a −20%/+20% tolerance for general-purpose power applications.

Designed for extended operation under elevated temperatures, this part is rated for operation from −40°C to 105°C with 3000 hours of endurance at 105°C under rated ripple conditions. It offers high ripple‑current capability and RoHS compliance for reliable, long-term power smoothing and energy storage.

Key Features

• Capacitance and Tolerance — 3.9 mF (3900 µF) nominal capacitance with a tolerance of −20% to +20% at 120 Hz, 20°C.
• Voltage Rating — Rated voltage: 63 V DC for medium‑voltage general‑purpose applications.
• High Ripple‑Current Capability — Low‑frequency ripple current of 2.55 A (120 Hz) and high‑frequency ripple current of 2.933 A (50 kHz), enabling effective filtering under significant AC ripple stress.
• Thermal Endurance — Rated lifetime of 3000 hours at 105°C when subjected to DC bias plus rated ripple current, supporting extended operation in hot environments.
• Wide Operating Temperature Range — Specified for −40°C to 105°C operation to accommodate a broad range of ambient conditions.
• Loss and Leakage Characteristics — Tangent of loss angle (tan δ) of 0.25 at 120 Hz, 20°C and leakage current specified at 1480 µA after voltage application, allowing designers to evaluate ESR/DF and leakage tradeoffs.
• Package & Mounting — Snap‑in radial can (φ30 × 35L / L: 3.5 × D: 3 cm) supplied in tray packing for through‑hole snap‑in mounting and assembly convenience.
• RoHS Compliant — Meets RoHS directive requirements for environmental compliance.

Typical Applications

• Power supply filtering — Bulk smoothing and ripple reduction in general‑purpose DC power supplies using 3900 µF capacitance and 63 V rating to stabilize rails.
• DC‑DC converter bulk capacitor — Energy storage for converters where high ripple currents are present, leveraging the specified low‑ and high‑frequency ripple current capability.
• General‑purpose power electronics — Use in equipment requiring long‑life capacitors at elevated temperatures, supported by a 3000‑hour endurance rating at 105°C and −40°C to 105°C operating range.

Unique Advantages

• High ripple tolerance — Specified ripple currents at both low and high frequencies (2.55 A at 120 Hz; 2.933 A at 50 kHz) enable reliable performance in ripple‑intensive applications.
• Extended high‑temperature life — 3000 hours endurance at 105°C provides predictable long‑term performance in hot operating environments.
• Clear electrical characterization — Tan δ (0.25 at 63 V, 120 Hz, 20°C) and defined leakage current (1480 µA) allow designers to budget ESR/DF and leakage into system-level calculations.
• Robust mounting option — Snap‑in radial can (φ30 × 35L) offers secure through‑hole mounting for applications requiring mechanical stability and easy replacement.
• RoHS compliance — Environmentally conscious manufacturing and materials compliance for regulated markets.

Why Choose LGU1J392MELB?

LGU1J392MELB combines substantial capacitance (3.9 mF) and a 63 V rating with strong ripple‑handling and a 3000‑hour endurance at 105°C, making it suitable for designers who need dependable bulk capacitance and thermal durability. Its snap‑in radial package and tray packing support straightforward assembly in general‑purpose power electronics and converter designs.

This part is ideal for engineers specifying capacitors for systems that require quantified ripple capacity, defined loss characteristics, and a proven lifetime at elevated temperatures—providing predictable behavior and long‑term value in production designs backed by Nichicon’s LGU series specifications.

If you need pricing, availability, or a quotation for LGU1J392MELB, please submit a request for a quote or contact sales to discuss lead times and order quantities.