LNY2G392MSEG

The LNY2G392MSEG is a screw-terminal aluminum electrolytic capacitor from Nichicon's LNY series, offering 3.9 mF (3900 μF) nominal capacitance at a 400 V rated voltage. It is a radial can with screw terminals (φ63.5 × 105 mm length) designed for general-purpose high-voltage applications.

Key value propositions include high-capacitance at elevated voltage, robust screw-terminal mounting for secure connections, and a 2000-hour endurance rating at 85°C—making it suitable for equipment designs that require durable bulk energy storage while enabling component consolidation.

Key Features

• Electrical rating — Nominal capacitance 3.9 mF (3900 μF) with a rated voltage of 400 V and capacitance tolerance of ±20% (120 Hz, 20°C).
• Loss and leakage — Specified tangent of loss angle (tan δ) 0.25; leakage current after 5 minutes is limited to 3√(C·V) μA or 5 mA, whichever is smaller (measurement at 20°C, per datasheet guidance).
• High ripple capability — Rated ripple current 14.2 A at 120 Hz and 19.88 A at 10 kHz, supporting applications with significant AC ripple or switching currents.
• Endurance and temperature — Load-life endurance of 2000 hours at 85°C with the combined application of DC bias plus rated ripple current; operating temperature range −40°C to +85°C.
• Mechanical and mounting — Screw terminal radial can package with nominal dimensions L: 10.5 × D: 6.35 cm (φ63.5 × 105 mm length) and compatible M5 terminal hardware as defined in the LNY series drawings.
• Compliance and supply — RoHS compliant and supplied in cardboard packing; part is in mass production status.

Typical Applications

• High-voltage power modules — Bulk energy storage and smoothing where 400 V nominal ratings and 3.9 mF capacitance are required.
• Switch-mode power supplies — DC bus filtering and ripple handling supported by the specified ripple current ratings at 120 Hz and 10 kHz.
• Industrial power electronics — General-purpose high-voltage capacitor for assemblies that benefit from secure screw-terminal connections and high-capacitance density.

Unique Advantages

• High-voltage, high-capacitance combination — 3.9 mF at 400 V provides substantial bulk capacitance in a single component.
• Designed for ripple-heavy operation — Specified ripple currents (14.2 A @120 Hz, 19.88 A @10 kHz) address demanding AC and switching environments.
• Long endurance at elevated temperature — 2000-hour rated life at 85°C under rated ripple/load conditions supports reliable long-term use.
• Secure screw-terminal mounting — Radial can with screw terminals and M5-compatible hardware ensures robust electrical and mechanical connections.
• Measured electrical stability — Defined tan δ and leakage-current limits give predictable performance for design verification and system margining.
• Regulatory compliance — RoHS-compliant construction for regulatory compatibility in many regions.

Why Choose LNY2G392MSEG?

LNY2G392MSEG positions itself as a practical choice for engineers needing high-voltage bulk capacitance with secure screw-terminal mounting and verified endurance. Its combination of 3.9 mF at 400 V, defined loss/leakage characteristics, and robust ripple-current capability makes it suitable for designs where predictable high-voltage energy storage and reliable long-term operation are required.

This part is appropriate for customers designing industrial and power-electronics equipment that demand durable, serviceable capacitors and straightforward mechanical integration. Backed by Nichicon's LNY series specifications and RoHS compliance, it supports sustained operation in environments up to +85°C under rated conditions.

For pricing, lead times, or to request a formal quote for LNY2G392MSEG, please submit a request or inquiry through your preferred procurement channel.