LKG1J392MESBAK

CAP ALUM 3900UF ±20% 63V SNAP-IN
Part Description

3900 µF 63 V ±20% Aluminum Electrolytic Capacitor, Snap-In

Quantity 958 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)3.7 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 Frequency2.85 A @ 120 Hz
RoHS ComplianceCompliantSize / Dimension35 x 30 mmSurface Mount Land SizeN/A
Tolerance-20%~20%Voltage63 V

Overview of LKG1J392MESBAK – Snap‑in Aluminum Electrolytic Capacitor, 3.9 mF, 63 V

The LKG1J392MESBAK is a snap‑in, radial aluminum electrolytic capacitor specified at 3.9 mF (3900 µF) and 63 V. It is part of Nichicon’s LKG series and is designed for audio equipment where high capacitance, low loss and robust ripple handling are required.

Key hardware attributes include a snap‑in can package (φ30 × 35 mm), polarized construction, a rated operating temperature range of -40 °C to +85 °C, and a rated lifetime of 1000 hours at 85 °C. Note: this part is designated End of Life.

Key Features

  • Capacitance & Voltage — 3.9 mF (3900 µF) nominal capacitance with a 63 V rated voltage and ±20% tolerance.
  • Low Loss for Audio — Specified tangent of loss angle (tan δ) of 0.3 (measurement frequency 120 Hz at 20 °C), supporting low dissipation in audio circuits.
  • Ripple Current Capacity — Rated ripple current of 2.85 A at 120 Hz to support power‑supply filtering in audio amplifiers and related equipment.
  • Leakage Current — Leakage current specified at 1480 µA, measured under rated conditions.
  • Thermal & Lifetime — Operating range -40 °C to +85 °C with an endurance rating of 1000 hours at 85 °C.
  • Mechanical & Mounting — Radial, snap‑in can package (φ30 × 35 mm; L: 3.5 cm × D: 3.0 cm) for secure panel or PCB mounting; supplied in tray packing.
  • Regulatory — RoHS compliant as indicated in product data.

Typical Applications

  • High‑grade Audio Amplifiers — Bulk and smoothing capacitor for amplifier power rails where large capacitance and 63 V rating are required.
  • Audio Power Supplies — Filtering and energy‑reserve applications in audio equipment power supplies benefiting from the part’s ripple current capability and low loss.
  • Preamplifier and DAC Power Decoupling — Decoupling and local energy storage in high‑fidelity analog stages where stable capacitance and low tan δ support sound quality.

Unique Advantages

  • Audio‑oriented design — Part of the LKG series developed for audio use, enabling component selection aligned with high‑fidelity equipment requirements.
  • High capacitance at elevated voltage — 3900 µF at 63 V provides significant energy storage in a compact snap‑in can for higher‑voltage audio systems.
  • Measurable low loss — tan δ = 0.3 (120 Hz, 20 °C) indicates predictable dissipation characteristics for audio signal chains and power stages.
  • Robust ripple handling — 2.85 A ripple current rating at 120 Hz supports stable filtering under dynamic audio load conditions.
  • Tray packing for production — Supplied in trays to support handling and assembly throughput in manufacturing environments.

Why Choose LKG1J392MESBAK?

LKG1J392MESBAK combines a high capacitance and a 63 V rating in a snap‑in radial can optimized for audio applications. Its defined tan δ, ripple current rating and endurance at 85 °C make it suitable for designers specifying bulk filtering and power reservoir functions in high‑fidelity audio equipment.

This part is appropriate for engineers and buyers who need a proven electrolytic solution from the LKG series with clear, verifiable electrical and mechanical specifications and RoHS compliance. Keep in mind the part is designated End of Life for planning replacements or lifecycle considerations.

If you would like pricing or availability information, request a quote or contact our sales team to submit a quotation request referencing LKG1J392MESBAK.

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    Date Founded: 1950


    Headquarters: Nakagyo, Kyoto, Japan


    Employees: 5,000+


    Revenue: $1.2 Billion


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