LLS1J392MELB

The LLS1J392MELB is a snap‑in terminal aluminum electrolytic capacitor from Nichicon's LLS series. It provides 3.9 mF (3900 µF) capacitance at a 63 V rating with ±20% tolerance, packaged in a radial can with snap‑in terminals for mechanical stability and straightforward board mounting.

Designed for general purpose electronic equipment, this part targets applications that require bulk energy storage, smoothing and high ripple‑current handling within a −40°C to +85°C operating range and an endurance rating of 3000 hours at 85°C.

Key Features

• Capacitance & Voltage — 3.9 mF (3900 µF) nominal capacitance rated for 63 V DC with ±20% tolerance (measured at 120 Hz, 20°C).
• Frequency‑specified loss (tan δ) — tanδ of 0.25 specified at 20°C and 120 Hz for stable dissipation factor characterization.
• Ripple current capability — Low frequency ripple current of 3.09 A at 120 Hz and high frequency ripple current of 3.554 A at 50 kHz, enabling robust filtering under AC ripple conditions.
• Leakage current — Specified leakage current of 1480 µA (measured after rated voltage application), useful for budgeting standby currents.
• Endurance and reliability — Rated for 3000 hours at 85°C with DC bias plus rated ripple current; capacitance, tanδ and leakage current limits are defined by the LLS series endurance specifications.
• Mounting & package — Radial, can‑style snap‑in terminal package (φ30 × 30 mm length) for secure vertical mounting; supplied in tray packing for mass production handling.
• Operating environment — Specified operating temperature range from −40°C to +85°C and RoHS compliance per product documentation.

Typical Applications

• General Purpose Electronic Equipment — Bulk capacitance for smoothing and energy storage where 3.9 mF at up to 63 V is required.
• Power Supply Filtering — AC ripple handling capability specified at both low and high frequencies supports filtering in DC power systems.
• Industrial and Commercial Systems — Robust endurance (3000 h at 85°C) and a wide operating temperature range support use in long‑life assemblies and production volumes.

Unique Advantages

• High bulk capacitance at medium voltage — 3.9 mF at 63 V provides substantial energy storage for smoothing and decoupling functions.
• Dual‑frequency ripple data — Specified ripple currents at both 120 Hz and 50 kHz make it straightforward to evaluate performance across common ripple environments.
• Qualified endurance rating — 3000 hours at 85°C under rated ripple and DC bias delivers defined lifetime expectations for design planning.
• Snap‑in radial package — Robust mechanical mounting and tray packing streamline assembly and high‑volume production handling.
• Measured dissipation and leakage — Provided tanδ and leakage current figures allow precise thermal and leakage budgeting in system designs.
• RoHS compliant — Meets applicable RoHS requirements as stated in product documentation.

Why Choose LLS1J392MELB?

The LLS1J392MELB combines substantial capacitance and medium‑voltage rating with defined endurance and ripple‑current specifications from Nichicon's LLS series. Its snap‑in radial can and tray packing make it suitable for production environments that require reliable mounting and handling.

This capacitor is well suited to designers and procurement teams specifying bulk energy storage and ripple filtering components for general purpose electronic and industrial systems where clear, measurable performance (capacitance, tanδ, leakage, ripple current and endurance) is required for robust system design.

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