LNY2W392MSEG

CAP ALUM 3900UF ±20% 450V SCREW
Part Description

3900 µF 450 V ±20% Aluminum Electrolytic Capacitor, Screw Terminal

Quantity 868 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)12.8 cmHTS Code8532.22.0085
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 Frequency18.9 A @ 10 kHzRipple Current Low Frequency13.5 A @ 120 Hz
RoHS ComplianceCompliantSize / Dimension125 x 63.5 mmSurface Mount Land SizeN/A
Tolerance-20%~20%Voltage450 V

Overview of LNY2W392MSEG – Aluminum Electrolytic Screw Terminal Capacitor, 3900 µF, 450 V

The LNY2W392MSEG is an aluminum electrolytic capacitor in a screw-terminal can designed for general-purpose applications. It provides high capacitance (3.9 mF) at a 450 V rating in a compact φ63.5 × 125 mm package and is suited for equipment down sizing and high-voltage power designs requiring robust ripple handling and long life at elevated temperature.

Key Features

  • High Capacitance and Voltage: 3.9 mF nominal capacitance at a rated voltage of 450 V, with ±20% tolerance (120 Hz, 20°C).
  • Screw Terminal Mounting: Radial can with screw terminals (M5 nominal bolt for φ63.5) for secure, high-current connections and straightforward installation.
  • High Ripple Current Capacity: Low-frequency ripple current 13.5 A (120 Hz) and high-frequency ripple current 18.9 A (10 kHz), enabling support for substantial AC ripple loads within the rated conditions.
  • Thermal Endurance: Rated operating temperature range −40°C to +85°C with a load life of 2000 hours at 85°C under rated ripple current conditions.
  • Electrical Loss and Leakage: Specified tanδ of 0.25 and measured leakage current of 3970 µA, with leakage limits defined by the 3√CV or 5 mA rule as noted in the series specification.
  • RoHS Compliant Packaging: Supplied in cardboard packing and compliant with RoHS requirements.

Typical Applications

  • General-purpose power systems: Bulk energy storage and DC link applications where high capacitance at 450 V is required.
  • High-voltage electronics: Designs needing a durable, screw-terminal capacitor with high ripple current handling at both low and high frequencies.
  • Equipment down-sizing projects: Where the LNY series’ higher capacitance density supports reduced overall system size while maintaining required electrical performance.

Unique Advantages

  • High-voltage capability: 450 V rating enables use in higher-voltage DC systems without series stacking.
  • Robust ripple handling: 13.5 A (120 Hz) and 18.9 A (10 kHz) ripple ratings provide margin for demanding AC ripple environments.
  • Screw-terminal reliability: M5-compatible screw terminals afford secure mechanical and electrical connections for high-current service.
  • Designed for elevated-temperature operation: Rated −40°C to +85°C with a 2000-hour endurance at 85°C under specified ripple conditions for predictable long-term performance.
  • Clear electrical characterization: Specified tanδ, leakage current, and capacitance tolerance simplify selection and validation in production designs.
  • Regulatory compliance: RoHS compliant for simplified integration into systems with environmental directive requirements.

Why Choose LNY2W392MSEG?

LNY2W392MSEG brings high capacitance and a 450 V rating in a screw-terminal aluminum electrolytic package that is designed for demanding ripple and thermal endurance conditions. Its combination of 3.9 mF capacitance, defined loss characteristics (tanδ 0.25), and specified ripple currents at both low and high frequencies make it a practical choice for engineers targeting reliable energy storage and smoothing in compact, higher-voltage assemblies.

This part is well suited to designers and procurement teams that need a RoHS-compliant, high-voltage electrolytic with secure screw-terminal connections and a defined 2000-hour life at 85°C, supporting predictable system behavior over long-term operation.

Request a quote or submit an inquiry to receive pricing, availability, and ordering details for LNY2W392MSEG. Our team can provide lead-time information and help match this capacitor to your design requirements.

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    Date Founded: 1950


    Headquarters: Nakagyo, Kyoto, Japan


    Employees: 5,000+


    Revenue: $1.2 Billion


    Certifications and Memberships: ISO9001:2015, IATF16949:2016


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