LLG2G391MELC25

The LLG2G391MELC25 is a Nichicon LLG series aluminum electrolytic capacitor in a snap‑in terminal, radial can package. It provides 390 µF capacitance at a 400 V rating with a compact φ35 × 25 mm case size and is designed for general-purpose applications.

Key value comes from a smaller case footprint (LLG series is one rank smaller than LLS), robust ripple performance at both low and high frequencies, a 2000‑hour endurance rating at 85 °C, and RoHS compliance—enabling compact, reliable high‑voltage designs.

Key Features

• Capacitance & Voltage — 390 µF nominal capacitance with a 400 V rated voltage; capacitance tolerance ±20% (120 Hz, 20 °C).
• Package & Mounting — Snap‑in terminal, radial can package sized φ35 × 25 mm for compact board layouts; tray packing for handling in production.
• Ripple Performance — Low‑frequency ripple current 1.9 A (120 Hz) and high‑frequency ripple current 2.717 A (100 kHz), supporting demanding AC ripple conditions.
• Loss & Leakage — Tangent of loss angle (tan δ) max. 0.15 (measured at 120 Hz, 20 °C) and specified leakage current (I ≤ 3√CV after 5 minutes at 20 °C); example leakage listed as 1180 µA for this part.
• Temperature & Endurance — Rated operating range −25 °C to +85 °C with endurance of 2000 hours at 85 °C under rated DC bias plus rated ripple current.
• Regulatory — Compliant with RoHS (2011/65/EU, (EU)2015/863).

Typical Applications

• General Purpose — For a wide range of general‑purpose circuits where a 390 µF, 400 V electrolytic capacitor is required.
• Compact Power Designs — Suited for equipment downsizing thanks to the LLG series’ smaller case size compared to prior LLS series designs.
• Board‑level Snap‑in Assemblies — Snap‑in radial can package with PC board hole and terminal dimensions provided for secure board mounting.

Unique Advantages

• High‑voltage capability: 400 V rating allows use in higher DC bus and filter applications that require elevated voltage handling.
• Compact form factor: φ35 × 25 mm case reduces board area versus larger sizes while maintaining 390 µF capacitance.
• Strong ripple handling: Specified LF and HF ripple currents (1.9 A at 120 Hz; 2.717 A at 100 kHz) help maintain performance under AC stress.
• Designed endurance: 2000 hours at 85 °C with defined end‑of‑life criteria for capacitance, tan δ, and leakage current supports predictable reliability planning.
• RoHS compliance: Meets current RoHS directives for environmentally conscious designs.
• Low loss at rated conditions: tan δ max. 0.15 (120 Hz, 20 °C) contributes to efficient operation in AC ripple environments.

Why Choose LLG2G391MELC25?

The LLG2G391MELC25 combines a high 400 V rating and substantial 390 µF capacitance in a smaller snap‑in radial can, delivering ripple performance and endurance suited to compact high‑voltage designs. Its defined electrical characteristics—ripple current, tan δ, leakage, and 2000‑hour endurance at 85 °C—provide clear, verifiable parameters for design and reliability planning.

This part is ideal for engineers specifying compact, reliable aluminum electrolytic capacitors where space, high voltage capability, and predictable lifetime behavior are important. RoHS compliance and tray packing further support production and regulatory needs.

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