LGU1C393MELB

The LGU1C393MELB is a Nichicon LGU series aluminum electrolytic capacitor in a snap‑in terminal configuration, offering 39,000 µF of capacitance at a rated voltage of 16 V. It combines high bulk capacitance with designed ripple endurance to support general‑purpose power designs that require sustained ripple handling and high operating temperature capability.

Designed for mass production and supplied in tray packing, this snap‑in, radial can package provides a compact solution for applications that need large capacitance, defined leakage and loss characteristics, and long life under rated ripple conditions.

Key Features

• High Capacitance — 39,000 µF nominal capacitance with tolerance −20% to +20% (measured at 120 Hz, 20°C).
• Rated Voltage — 16 V operating rating suitable for low‑voltage bulk storage needs.
• Ripple Current Endurance — Low‑frequency ripple current 4.81 A (120 Hz) and high‑frequency ripple current 5.532 A (50 kHz); designed to withstand 3,000 hours of rated ripple current at 105°C.
• Temperature and Lifetime — Operating temperature range of −40°C to +105°C with a rated endurance of 3,000 hours at 105°C.
• Loss Characteristics — Dissipation factor (tan δ) of 0.50 at 20°C, 120 Hz, providing predictable loss behavior for AC ripple conditions.
• Leakage Current — Specified leakage current of 2,360 µA (after standard test conditions), enabling straightforward system budgeting for standby and quiescent currents.
• Package & Mounting — Snap‑in radial can (φ30 × 50 mm length) for secure board mounting; supplied in tray packing for production handling.
• Compliance — RoHS‑compliant construction.

Typical Applications

• General‑purpose power designs — Suitable where large bulk capacitance at 16 V is required for smoothing and energy buffering in low‑voltage systems.
• High‑ripple environments — Applications that impose sustained rated ripple current benefit from the LGU1C393MELB’s specified ripple current ratings and 3,000‑hour endurance at 105°C.
• Compact high‑capacitance solutions — When board space is constrained but significant capacitance is needed, the φ30 × 50 mm snap‑in package provides a dense form factor.

Unique Advantages

• Large single‑component capacitance — 39,000 µF reduces the number of parallel devices required for bulk storage compared to lower‑value capacitors.
• Extended ripple life at elevated temperature — Rated to withstand 3,000 hours of rated ripple current at 105°C, supporting durability in thermally demanding designs.
• Measured AC performance — Specified tan δ (0.50 at 20°C, 120 Hz) and defined leakage current (2,360 µA) allow precise thermal and power loss calculations.
• Dual‑frequency ripple handling — Explicit low‑ and high‑frequency ripple current specifications (4.81 A at 120 Hz, 5.532 A at 50 kHz) accommodate mixed‑frequency ripple scenarios.
• Production‑ready packaging — Tray packing and snap‑in mounting simplify assembly and handling for high‑volume manufacturing.
• Regulatory alignment — RoHS‑compliant material set supports regulatory requirements for many markets.

Why Choose LGU1C393MELB?

The LGU1C393MELB positions itself as a robust, high‑capacitance choice within Nichicon’s LGU snap‑in series, balancing large energy storage with specified ripple endurance and thermal capability to 105°C. Its clear electrical parameters—capacitance, voltage, ripple currents, tan δ and leakage current—make it straightforward to evaluate and integrate into designs that need predictable performance under sustained ripple stress.

This part is well suited for engineers and procurement teams seeking a mass‑production, tray‑packed snap‑in capacitor that provides long life under rated conditions and compact high‑capacitance in a radial can package.

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