LKG1E392MESYAK

CAP ALUM 3900UF ±20% 25V SNAP-IN
Part Description

3900 µF 25 V ±20% Aluminum Electrolytic Capacitor, Snap-In

Quantity 960 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)2.7 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 Frequency1.6 A @ 120 Hz
RoHS ComplianceCompliantSize / Dimension25 x 20 mmSurface Mount Land SizeN/A
Tolerance-20%~20%Voltage25 V

Overview of LKG1E392MESYAK – Snap-In Aluminum Electrolytic Capacitor, 3.9 mF, 25 V

The LKG1E392MESYAK is a snap-in aluminum electrolytic capacitor from Nichicon's LKG series, engineered for audio applications. It provides 3,900 µF capacitance at a 25 V rating in a compact φ20 × 25 mm snap-in can.

Key attributes include a 1.6 A low-frequency ripple current rating (120 Hz), low leakage current (930 µA), a dissipation factor (tan δ) of 0.3 at 20°C/120 Hz, and an operating range of −40°C to 85°C with 1,000 hours endurance at 85°C. Status: End Of Life.

Key Features

  • Capacitance & Tolerance — 3,900 µF (3.9 mF) with ±20% tolerance at 120 Hz, 20°C, suitable for bulk energy storage and smoothing tasks.
  • Rated Voltage — 25 V rating for moderate-voltage audio power rails and filter stages.
  • Low-Frequency Ripple Handling — Rated low-frequency ripple current of 1.6 A at 120 Hz, supporting power-supply ripple management in audio circuits.
  • Low Leakage & Loss — Specified leakage current of 930 µA and tan δ of 0.3 (20°C, 120 Hz) for predictable bias behavior and dissipation.
  • Endurance & Temperature Range — Specified lifetime of 1,000 hours at 85°C; operating temperature range −40°C to 85°C.
  • Package & Mounting — Snap-in radial can (φ20 × 25 mm) in tray packing for straightforward chassis or PCB assembly.
  • RoHS Compliance — Meets RoHS requirements as specified in the product data.

Typical Applications

  • Professional audio power supplies — Bulk smoothing and reservoir capacitance for amplifiers and preamplifiers.
  • High-fidelity audio systems — Decoupling and energy storage to support dynamic audio transients in high-grade equipment.
  • Audio equipment assemblies — Power-filter networks and sub-assembly designs that require a compact snap-in capacitor with defined ripple and leakage.

Unique Advantages

  • Engineered for audio use: Part of the LKG series designed specifically for high-grade audio equipment, prioritizing sound-quality-related characteristics.
  • High ripple capability: 1.6 A low-frequency ripple rating at 120 Hz supports robust power-rail smoothing for audio power stages.
  • Predictable electrical behavior: Specified leakage current (930 µA) and tan δ (0.3) provide stable, verifiable performance parameters for design calculations.
  • Compact snap-in form factor: φ20 × 25 mm radial can with snap-in mounting enables space-efficient installation in chassis and assemblies.
  • Rated endurance at elevated temperature: 1,000 hours at 85°C documents expected stability under sustained elevated-temperature operation.
  • RoHS compliant: Meets regulatory requirements for restricted substances as noted in the product data.

Why Choose LKG1E392MESYAK?

LKG1E392MESYAK is positioned for designers of high-grade audio equipment who need a compact, snap-in aluminum electrolytic capacitor with substantial capacitance (3,900 µF), a 25 V rating, and defined ripple/leakage parameters. The LKG series’ audio-focused design intent and the part’s endurance and temperature ratings make it suitable for power-supply and energy-storage roles in audio systems.

Although this part is listed as End Of Life, its documented specifications—low-frequency ripple current, leakage, dissipation factor, and 1,000-hour endurance at 85°C—provide clear, verifiable performance data for evaluating legacy designs or replacement strategy planning.

If you would like pricing, availability, or to submit a request for quote (RFQ) for LKG1E392MESYAK, please request a quote or submit an RFQ to inquire about this part and related options.

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    Date Founded: 1950


    Headquarters: Nakagyo, Kyoto, Japan


    Employees: 5,000+


    Revenue: $1.2 Billion


    Certifications and Memberships: ISO9001:2015, IATF16949:2016


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