LKG1K392MESCBK

CAP ALUM 3900UF ±20% 80V SNAP-IN
Part Description

3900 µF 80 V ±20% Aluminum Electrolytic Capacitor, Snap-In

Quantity 664 Available (as of November 3, 2026)
Product CategoryAluminum Electrolytic Capacitors
Part SeriesLKG
ManufacturerNichicon
Manufacturing StatusEnd Of Life
Manufacturer Standard Lead TimeContact Us
Datasheet

Specifications & Environmental

ApplicationsAudioCapacitance3.9 mFECCNEAR99
ESRN/AHeight Seated (Max)4.7 cmHTS Code8532.22.0040
ImpedanceN/ALead SpacingN/ALifetime @ Temp1000 h @ 85°C
Moisture Sensitivity LevelN/AMounting MethodSnap InOperating Temperature-40°C - 85°C
Package / CaseRadial, Can - Snap-InPolarizationPolarRatingsN/A
REACH ComplianceREACH UnaffectedRipple Current High FrequencyN/ARipple Current Low Frequency4.35 A @ 120 Hz
RoHS ComplianceCompliantSize / Dimension45 x 35 mmSurface Mount Land SizeN/A
Tolerance-20%~20%Voltage80 V

Overview of LKG1K392MESCBK – Aluminum Electrolytic Capacitor, Snap‑In, 3.9 mF, 80 V

The LKG1K392MESCBK is an aluminum electrolytic, snap‑in terminal capacitor from Nichicon’s LKG series engineered for audio equipment. It provides 3900 µF capacitance at an 80 V rating in a radial snap‑in can, intended for use where audio‑grade power smoothing and high‑fidelity performance are required.

Key product attributes include a low loss tangent (tan δ = 0.25), a rated ripple current of 4.35 A at 120 Hz, polarized construction, and an operating range of −40 °C to +85 °C with 1000 hours endurance at 85 °C.

Key Features

  • Capacitance & Voltage — 3.9 mF (3900 µF) nominal capacitance with an 80 V rated voltage and ±20% tolerance, suitable for high‑voltage audio power applications.
  • Audio‑focused design — Part of the LKG series designed for audio equipment and high‑fidelity sound, delivering characteristics targeted at audio power supply and coupling use cases.
  • Low dissipation (tan δ) — Specified tan δ of 0.25 (measurement at 120 Hz, 20 °C) to help minimize dielectric loss in audio signal and power paths.
  • High ripple handling — Rated ripple current of 4.35 A at 120 Hz for robust AC load performance in power supply filtering.
  • Leakage current — Initial leakage current indicated as 1670 µA (measured in product specification), consistent with typical electrolytic capacitor behavior.
  • Construction & mounting — Polarized aluminum electrolytic in a radial, snap‑in can package (φ35 × 45 mm body), providing secure board retention for vertical mounting.
  • Temperature & lifetime — Operating range −40 °C to +85 °C with specified endurance of 1000 hours at 85 °C; shelf life and endurance characteristics defined per series specifications.
  • RoHS compliant — Meets RoHS directive requirements as noted in the product series documentation.

Typical Applications

  • High‑fidelity audio amplifiers — Bulk energy storage and smoothing in power rails for amplifiers where stable supply reduces audible distortion.
  • Audio power supplies — Filtering and ripple reduction in linear and switch‑mode power supplies for audio equipment.
  • Professional A/V equipment — Power decoupling and reservoir capacitance in receivers, preamps, and other high‑grade audio electronics.

Unique Advantages

  • Audio‑oriented engineering: Designed under the LKG series for audio use, offering characteristics targeted to high‑fidelity sound systems.
  • High voltage capability: 80 V rating provides greater headroom for higher‑voltage audio power rails and system designs.
  • Strong ripple endurance: 4.35 A ripple rating at 120 Hz supports sustained AC stress in power supply applications.
  • Reliable operating envelope: −40 °C to +85 °C range and 1000 hours endurance at 85 °C give predictable life performance under rated conditions.
  • Secure snap‑in mounting: Radial snap‑in can package ensures firm mechanical retention for vertical board installations.
  • Standards compliance: RoHS compliance aligns with contemporary regulatory and environmental requirements.

Why Choose LKG1K392MESCBK?

LKG1K392MESCBK is positioned for designers of audio and A/V systems who need a high‑capacitance, high‑voltage electrolytic with audio‑focused characteristics. Its combination of 3900 µF at 80 V, specified low loss tangent, and substantial ripple current rating make it appropriate for power supply smoothing and decoupling in high‑fidelity equipment.

The part’s endurance specification (1000 hours at 85 °C), operating temperature range, and RoHS compliance provide measurable, verifiable attributes for long‑term reliability planning in professional audio designs.

To request a quote or submit an inquiry for LKG1K392MESCBK, please contact sales with the part number and your quantity and application requirements.

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