LNY2G392MSEFBB

CAP ALUM 3900UF ±20% 400V SCREW
Part Description

3900 µF 400 V ±20% Aluminum Electrolytic Capacitor, Screw Terminal

Quantity 709 Available (as of November 3, 2026)
Product CategoryAluminum Electrolytic Capacitors
Part SeriesLNY
ManufacturerNichicon
Manufacturing StatusMass Production
Manufacturer Standard Lead TimeContact Us
Datasheet

Specifications & Environmental

ApplicationsGeneral PurposeCapacitance3.9 mFECCNEAR99
ESRN/AHeight Seated (Max)17.3 cmHTS Code8532.22.0055
ImpedanceN/ALead SpacingN/ALifetime @ Temp2000 h @ 85°C
Moisture Sensitivity LevelN/AMounting MethodScrew TerminalOperating Temperature-40°C - 85°C
Package / CaseRadial, Can - Screw TerminalsPolarizationPolarRatingsN/A
REACH ComplianceREACH AffectedRipple Current High Frequency19.32 A @ 100 kHzRipple Current Low Frequency13.8 A @ 120 Hz
RoHS ComplianceCompliantSize / Dimension170 x 51 mmSurface Mount Land SizeN/A
Tolerance-20%~20%Voltage400 V

Overview of LNY2G392MSEFBB – Screw Terminal Aluminum Electrolytic Capacitor, 3.9 mF / 400 V

The LNY2G392MSEFBB is an aluminum electrolytic capacitor in a screw-terminal can designed for general-purpose high-voltage applications. It provides 3.9 mF (3900 µF) capacitance at a 400 V rating with a compact radial can package (φ51 × 170 mm) suited to equipment downsizing.

Engineered for sustained ripple handling and reliability, this part is specified for a 2000-hour load life under rated ripple current at 85°C and is RoHS compliant.

Key Features

  • Electrical Capacity — 3.9 mF (3900 µF) nominal capacitance with ±20% tolerance (120 Hz, 20°C), providing bulk energy storage for high-voltage circuits.
  • High Voltage Rating — Rated voltage 400 V suitable for high-voltage DC bus and filtering tasks.
  • Screw Terminal Mounting — Radial, can-style package with screw terminals (M5 nominal bolt) for secure, low-inductance connections in power assemblies.
  • Ripple Current Performance — Rated ripple current of 13.8 A at 120 Hz and 19.32 A at 100 kHz to support repeated AC ripple conditions on DC rails.
  • Operating Temperature and Life — Specified operating range of −40°C to +85°C and a load-life rating of 2000 hours at 85°C with rated ripple current.
  • Leakage and Endurance — Leakage current specification: after 5 minutes at rated voltage, leakage is ≤ 3√(C·V) µA or 5 mA (whichever is smaller); endurance requirements defined for restoration to 20°C after the specified life test.
  • RoHS Compliance — Compliant with RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

  • High-voltage DC filtering: Bulk smoothing and energy storage on 400 V DC rails where substantial capacitance and ripple handling are required.
  • Power conversion equipment: Filter and buffer capacitor for power supplies and converters that benefit from screw-terminal mounting and robust ripple current capability.
  • Equipment downsizing projects: High capacitance in a compact φ51 × 170 mm can to help reduce overall system footprint while maintaining required energy storage.
  • General-purpose industrial electronics: Reliable polarized capacitance for a wide range of non-specified general-purpose applications within the specified temperature and life limits.

Unique Advantages

  • High-capacitance, high-voltage combination: 3.9 mF at 400 V consolidates energy storage in a single component, simplifying power-stage BOMs.
  • Screw-terminal robustness: M5 screw terminals provide secure mechanical and electrical connection for high-current, high-reliability assemblies.
  • Designed for ripple-intensive use: Specified ripple current ratings at 120 Hz and 100 kHz support both low- and high-frequency ripple environments.
  • Operational durability: 2000-hour load life at 85°C under rated ripple current offers predictable aging behavior for maintenance planning.
  • Regulatory assurance: RoHS compliance supports deployment in regions with restricted substances requirements.

Why Choose LNY2G392MSEFBB?

The LNY2G392MSEFBB positions itself for designs that require significant capacitance and high-voltage capability in a screw-terminal aluminum can. Its combination of 3.9 mF at 400 V, defined ripple current performance, and a 2000-hour life rating at 85°C makes it appropriate for engineers balancing space, energy storage, and durability.

This part is well suited to teams designing general-purpose industrial power assemblies or projects focused on equipment downsizing where reliable, high-voltage bulk capacitance with secure screw connections is required. RoHS compliance and clear leakage/endurance specifications help simplify qualification and long-term maintenance planning.

Request a quote or submit an inquiry for the LNY2G392MSEFBB to receive pricing, lead-time, and availability information tailored to your project needs.

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    Date Founded: 1950


    Headquarters: Nakagyo, Kyoto, Japan


    Employees: 5,000+


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