LKG1H392MESCCK

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

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

Quantity 1,405 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 Frequency3.5 A @ 120 Hz
RoHS ComplianceCompliantSize / Dimension45 x 35 mmSurface Mount Land SizeN/A
Tolerance-20%~20%Voltage50 V

Overview of LKG1H392MESCCK – Aluminum Electrolytic Snap-In Capacitor, 3.9 mF, 50 V

The LKG1H392MESCCK is an aluminum electrolytic capacitor in a snap-in radial can designed for high‑grade audio equipment. Engineered within Nichicon's LKG series for audio use, it prioritizes high‑fidelity sound quality while delivering bulk energy storage and robust low‑frequency ripple handling.

This part combines a 3.9 mF capacitance at 50 V with a compact φ35 × 45 mm can, snap‑in mounting and RoHS compliance, making it suitable for integration into high‑performance audio systems and associated power circuits.

Key Features

  • Capacitance & Voltage — 3.9 mF (3900 µF) rated at 50 V for substantial energy storage in audio power rails.
  • Audio-grade Design — Part of the LKG series designed specifically for audio equipment; the "CK" grade corresponds to the TYPE‑III (Super Through) grade noted in the series documentation.
  • Loss Characteristics — Tangent of loss angle (tan δ) specified at 0.22, measured at 20°C and 120 Hz, supporting predictable audio frequency performance.
  • Ripple Current Capability — Low‑frequency ripple current rating of 3.5 A at 120 Hz to support dynamic loads in audio power stages.
  • Leakage Current — Specified leakage current of 1320 µA for predictable standby and bias behavior.
  • Reliability & Lifetime — Endurance rated for 1000 hours at 85°C; stability and performance targets are defined for return to 20°C after the endurance test.
  • Operating Range — Specified operating temperature range from −40°C to +85°C for a wide set of deployment environments.
  • Mechanical & Mounting — Snap‑in radial can package (φ35 × 45 mm) for secure chassis or board mounting; supplied in tray packing.
  • Compliance — RoHS compliant.

Typical Applications

  • High‑fidelity audio amplifiers — Bulk filtering and energy buffering on amplifier power rails to support transient dynamics.
  • Professional audio equipment — Use in studio gear and HD audio systems where prioritized sound quality is required.
  • Audio power supply filters — Smoothing and reservoir capacitance in audio power supplies within the specified voltage and temperature limits.

Unique Advantages

  • Audio-focused engineering — Part of the LKG family explicitly designed for audio use, emphasizing tonal quality and fidelity.
  • High energy storage at 50 V — 3.9 mF capacitance provides substantial bulk for power rails in audio systems operating up to 50 V.
  • Measured loss and ripple specs — Specified tan δ (0.22 at 20°C/120 Hz) and 3.5 A ripple rating give designers quantifiable parameters for system simulations.
  • Durability under elevated temperature — 1000‑hour endurance rating at 85°C supports sustained operation in warm equipment enclosures.
  • Serviceable snap‑in form factor — Radial, snap‑in can simplifies mechanical retention and replacement in chassis‑style audio assemblies.
  • Regulatory compliance — RoHS compliant for use in regulated markets.

Why Choose LKG1H392MESCCK?

LKG1H392MESCCK is positioned for designers of high‑grade and HD audio equipment who need reliable bulk capacitance, clear performance data and a chassis‑friendly snap‑in package. Its combination of 3.9 mF at 50 V, defined loss characteristics, 3.5 A low‑frequency ripple rating and 1000‑hour endurance at 85°C offers predictable behavior for demanding audio power stages.

This capacitor is suitable for engineers specifying components where audio performance and thermal endurance are key selection criteria, and where a standardized snap‑in can and tray packing simplify assembly and serviceability.

Request a quote or submit an inquiry for LKG1H392MESCCK to receive availability and pricing information for your project.

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    Date Founded: 1950


    Headquarters: Nakagyo, Kyoto, Japan


    Employees: 5,000+


    Revenue: $1.2 Billion


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