LKG1H392MESYAK

CAP ALUM 3900UF ±20% 50V SNAP-IN
Part Description

3900 µF 50 V ±20% Aluminum Electrolytic Capacitor, Snap-In

Quantity 1,439 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 Frequency2.45 A @ 120 Hz
RoHS ComplianceCompliantSize / Dimension45 x 20 mmSurface Mount Land SizeN/A
Tolerance-20%~20%Voltage50 V

Overview of LKG1H392MESYAK – Aluminum Electrolytic Snap‑in Capacitor, 3.9 mF, 50 V

The LKG1H392MESYAK is a snap‑in terminal aluminum electrolytic capacitor from Nichicon's LKG series, specified at 3.9 mF (3900 µF) and 50 V. Engineered for audio equipment, this TYPE‑I (Gold Tune) grade prioritizes high‑fidelity sound performance while delivering bulk energy storage and ripple handling in a compact radial can.

With a wide operating temperature range and a rated endurance of 1000 hours at 85 °C, the LKG1H392MESYAK is suited to power filtering and smoothing roles in high‑grade audio power supplies and related electronic systems.

Key Features

  • Capacitance & Voltage — 3.9 mF (3900 µF) rated at 50 V provides substantial bulk capacitance for smoothing and energy reserve in power stages.
  • Audio‑focused Grade — Part of the LKG series TYPE‑I (Gold Tune), designed for high‑fidelity audio applications emphasizing tone quality and sound reproduction.
  • Package & Mounting — Snap‑in, radial can (lug/snap‑in terminal) for robust mechanical retention in chassis or PCB assemblies.
  • Thermal & Endurance — Operating range −40 °C to +85 °C with an endurance rating of 1000 hours at 85 °C to support sustained operation under elevated temperature conditions.
  • Electrical Loss & Leakage — Specified tangent of loss angle (tan δ) of 0.3 (measurement frequency: 120 Hz at 20 °C) and an initial leakage current value of 1320 µA for predictable performance in audio power circuits.
  • Ripple Current Capability — Rated low‑frequency ripple current of 2.45 A at 120 Hz, enabling effective ripple reduction in power supply applications.
  • Compact Footprint — Physical size φ20 × 45 mm (approx. 4.5 × 2.0 cm) to conserve space while delivering high capacitance.
  • RoHS Compliant — Meets RoHS requirements for reduced hazardous substances.

Typical Applications

  • High‑fidelity audio amplifiers — Bulk filtering and supply smoothing to support steady DC rails for clean audio reproduction.
  • Preamp and signal‑processing electronics — Energy reserve and decoupling where low noise and stable supply rails contribute to tonal clarity.
  • Audio power supply modules — Ripple attenuation and transient energy delivery in regulated and discrete power stages.
  • Chassis‑mounted power assemblies — Snap‑in mounting provides secure installation in equipment requiring robust mechanical retention.

Unique Advantages

  • Audio‑centric design: Classified as TYPE‑I (Gold Tune) within the LKG series, offering characteristics targeted at high‑fidelity audio use.
  • High bulk capacitance at 50 V: 3.9 mF capacity reduces required component count for energy storage and smoothing in power designs.
  • Measurable performance metrics: Specified tan δ, ripple current, and leakage figures allow predictable circuit design and selection tradeoffs.
  • Durability under elevated temperature: 1000‑hour endurance at 85 °C supports longer service life in warm enclosures or near power stages.
  • Space‑efficient form factor: φ20 × 45 mm can style delivers substantial capacitance in a compact radial package for constrained layouts.
  • Regulatory compliance: RoHS compliance supports use in designs requiring restricted‑substance conformity.

Why Choose LKG1H392MESYAK?

The LKG1H392MESYAK combines the bulk energy storage and ripple handling needed for audio power supplies with series‑specific design choices aimed at preserving tonal quality. Its snap‑in radial can form factor and specified electrical characteristics make it a practical choice for engineers designing high‑fidelity audio amplifiers, preamps, and chassis‑mounted power modules.

For designers and procurement teams seeking a RoHS‑compliant, audio‑focused electrolytic solution with defined thermal endurance and ripple performance, this Nichicon LKG part delivers predictable behavior and installation reliability in compact equipment layouts.

Request a quote or submit a quotation request to receive availability, lead time, and pricing information for the LKG1H392MESYAK.

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    Date Founded: 1950


    Headquarters: Nakagyo, Kyoto, Japan


    Employees: 5,000+


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