LNY2G392MSEH

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

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

Quantity 1,288 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)8.8 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 Frequency20.44 A @ 10 kHzRipple Current Low Frequency14.6 A @ 120 Hz
RoHS ComplianceCompliantSize / Dimension85 x 76.2 mmSurface Mount Land SizeN/A
Tolerance-20%~20%Voltage400 V

Overview of LNY2G392MSEH – Screw Terminal Aluminum Electrolytic Capacitor, 3.9 mF, 400 V

The LNY2G392MSEH is an aluminum electrolytic capacitor in a screw-terminal radial can designed for general-purpose use. It delivers high DC voltage capability (400 V) and substantial capacitance (3.9 mF / 3900 µF) in a compact φ76.2 × 85L package suited for equipment downsizing.

Engineered for continuous ripple-current applications, this part offers defined endurance and stability across an operating range of –40°C to +85°C, making it suitable for designs that require high-voltage bulk capacitance with robust electrical performance.

Key Features

  • High capacitance, high voltage — 3.9 mF (3900 µF) rated at 400 V for substantial energy storage in high-voltage circuits.
  • Screw terminal package — Radial can with screw terminals (M5 nominal bolt) for secure, low-impedance connections in power assemblies.
  • Designed for compact systems — φ76.2 × 85L footprint that supports equipment downsizing while retaining high capacitance.
  • Rated ripple current — 14.6 A at 120 Hz and 20.44 A at 10 kHz to support AC ripple conditions across a range of frequencies.
  • Endurance at elevated temperature — Load life of 2000 hours with rated ripple current applied at 85°C; peak voltage during test does not exceed the rated voltage.
  • Wide operating temperature — Specified for −40°C to +85°C operation for stable performance across temperature extremes.
  • Leakage current specification — After 5 minutes at rated voltage, leakage current is ≤ 3√CV (µA) or 5 mA, whichever is smaller (C: µF, V: V).
  • Insulation and voltage proof — Insulation resistance more than 100 MΩ at DC 500 V between terminal and bracket; no abnormality at AC 2500 V for 1 minute between terminal and bracket.
  • RoHS compliant — Conforms to the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

  • General-purpose power systems — Bulk energy storage and smoothing where high-voltage capacitance is required in non-specialized equipment.
  • Compact industrial equipment — Suitable for designs targeting equipment downsizing while maintaining required bulk capacitance and ripple handling.
  • Power electronics assemblies — Integration into assemblies that need secure screw-terminal connections and high ripple-current capability.

Unique Advantages

  • High-voltage energy density: 400 V rating combined with 3.9 mF capacitance provides substantial stored energy per package for DC-link and smoothing roles.
  • Robust ripple performance: Specified ripple current at both low and high frequencies supports stable operation under AC load conditions.
  • Secure mechanical and electrical connections: Screw-terminal radial can and M5 nominal bolt interface simplify mounting and ensure reliable terminations.
  • Proven endurance at temperature: 2000-hour load-life at 85°C with rated ripple current provides predictable aging characteristics for design planning.
  • Safety and insulation: High insulation resistance and AC voltage proof between terminal and bracket reduce risk of leakage or breakdown in high-voltage assemblies.
  • Regulatory compliance: RoHS conformity supports restricted-substance requirements for commercial and industrial products.

Why Choose LNY2G392MSEH?

The LNY2G392MSEH is positioned for engineers who need reliable, high-capacitance aluminum electrolytic performance at 400 V in a compact, screw-terminal package. Its combination of high ripple-current capability, defined load-life at elevated temperature, and measured insulation characteristics make it appropriate for general-purpose power applications where space efficiency and predictable electrical behavior matter.

Choose this part when your design requires robust bulk capacitance with secure terminations, measurable endurance data, and RoHS compliance to support long-term integration in commercial and industrial equipment.

Request a quote or contact our sales team to discuss pricing, availability and application support for the LNY2G392MSEH.

Request a Quote

















    No file selected



    Our team will respond within 24 hours.


    I agree to receive newsletters and promotional emails. I can unsubscribe at any time.

    Certifications and Membership
    NQA AS9100 CMYK ANAB
    NQA AS9100 ANAB Badge
    ESD2020 Badge
    ESD2020 Association Badge
    GIDEP Badge
    GIDEP Badge
    Suntsu ERAI MemberVerification
    Suntsu ERAI Member Verification
    Available Shipping Methods
    FedEx
    UPS
    DHL
    Accepted Payment Methods
    American Express
    American Express
    Discover
    Discover
    MasterCard
    MasterCard
    Visa
    Visa
    UnionPay
    UnionPay

    Date Founded: 1950


    Headquarters: Nakagyo, Kyoto, Japan


    Employees: 5,000+


    Revenue: $1.2 Billion


    Certifications and Memberships: ISO9001:2015, IATF16949:2016


    Featured Products
    Latest News
    keyboard_arrow_up