LGU1K392MELB

The LGU1K392MELB is a Nichicon LGU‑series aluminum electrolytic capacitor in a snap‑in terminal radial can. It delivers 3.9 mF nominal capacitance at an 80 V rated voltage with ±20% tolerance and is specified for operation from −40°C to 105°C.

Designed for general‑purpose applications, this part combines high working voltage, defined ripple‑current capability, long endurance (3000 hours at 105°C) and a snap‑in mounting style for secure mechanical installation.

Key Features

• Capacitance & Voltage: 3.9 mF nominal capacitance rated at 80 V with ±20% tolerance (120 Hz, 20°C).
• High‑temperature Endurance: Specified 3000 hours life at 105°C under rated ripple current and DC bias with defined post‑test limits for capacitance, tan δ and leakage.
• Ripple Current Ratings: 3.12 A at 120 Hz (low frequency) and 3.588 A at 50 kHz (high frequency), enabling defined AC stress handling per the datasheet values.
• Loss and Leakage: tan δ (DF) specified at 0.20 maximum (measurement at 120 Hz, 20°C for 80 V class) and leakage current specified at 1670 µA for this part.
• Operating Temperature Range: −40°C to 105°C, supporting higher temperature applications within the specified endurance window.
• Package & Mounting: Radial, snap‑in can package (snap‑in terminal type) with size listed as φ30×40L and dimensional listing L: 4 × D: 3 cm; supplied in tray packing for mass production.
• Compliance: RoHS compliant per the product data.

Typical Applications

• General‑purpose electronic systems — Provides bulk capacitance for general‑purpose applications that require 3.9 mF at 80 V and operation up to 105°C.
• AC ripple management — Sized and specified for applications where defined ripple currents (3.12 A at 120 Hz, 3.588 A at 50 kHz) must be tolerated over long service life.
• High‑temperature installations — Intended for designs that need a 105°C rated capacitor with a 3000‑hour endurance specification under rated conditions.

Unique Advantages

• Defined high‑voltage capability: 80 V rated voltage supports designs requiring elevated DC working voltage within the LGU series range.
• Long endurance at elevated temperature: 3000 hours life at 105°C provides predictable performance over extended thermal stress periods.
• Clear ripple‑current specification: Separate low‑ and high‑frequency ripple current figures (3.12 A at 120 Hz and 3.588 A at 50 kHz) enable accurate thermal and lifetime calculations.
• Snap‑in, board‑secure mounting: Radial snap‑in can construction provides a mechanically robust mounting option for production assemblies.
• Measured electrical characteristics: Quantified tan δ (0.20 max at 120 Hz, 20°C for 80 V class) and specified leakage current enable engineering tradeoffs based on documented parameters.
• Production readiness: Tray packing and mass production status support volume assembly workflows.

Why Choose LGU1K392MELB?

The LGU1K392MELB combines a high 80 V rating and substantial 3.9 mF capacitance with a 105°C, 3000‑hour endurance specification, making it suitable for engineers seeking predictable, long‑term performance in general‑purpose electronic designs. Its clear ripple‑current, tan δ and leakage ratings allow for straightforward thermal and reliability planning.

This part is appropriate for designers and procurement teams requiring a snap‑in, radial can solution with documented high‑temperature endurance and production‑friendly packaging, backed by Nichicon’s LGU series specification set.

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