LKG1E392MESABK

The Nichicon LKG1E392MESABK is an aluminum electrolytic capacitor in a snap-in, radial can package designed for audio equipment. It delivers 3900 µF of capacitance at a 25 V rating with a ±20% tolerance for bulk energy storage and smoothing on audio power rails.

Part of the LKG series and specified as a TYPE‑II grade (BK), this component targets high‑fidelity audio applications where low loss, measurable ripple performance, and stable operation across a wide temperature range are required. Key electrical specifications include a tan δ of 0.3 (measured at 120 Hz, 20 °C), 2.1 A ripple current (120 Hz), and a rated lifetime of 1000 hours at 85 °C.

Key Features

• Capacitance & Voltage — 3.9 mF (3900 µF) rated at 25 V with ±20% tolerance for reservoir and smoothing duties in audio power supplies.
• Audio‑grade LKG Series (TYPE‑II) — LKG series design tuned for audio equipment; the BK grade corresponds to the series’ TYPE‑II specification aimed at high tone quality using electrode foil optimized for sound.
• Low Loss Characteristics — Specified tangent of loss angle (tan δ) of 0.3 (measurement reference 120 Hz, 20 °C) to help preserve signal integrity in audio circuits.
• Ripple Current & Leakage — Rated ripple current of 2.1 A at 120 Hz and leakage current specified at 930 µA for predictable filtering and power‑rail behavior.
• Reliability & Endurance — Engineered for 1000 hours of endurance at 85 °C, with specified limits for capacitance change, tan δ, and leakage after endurance testing.
• Package & Mounting — Snap‑in terminal, radial can package (φ25 × 25L) for secure board mounting and mechanical stability; tray packing.
• Wide Operational Range — Rated for operation from −40 °C to +85 °C to suit a broad range of ambient conditions in audio equipment.
• RoHS Compliant — Manufactured to meet RoHS requirements as noted in the product data.

Typical Applications

• Audio Power Amplifiers — Bulk smoothing and reservoir capacitance for amplifier power rails to support steady audio output and reduce supply ripple.
• High‑Fidelity Audio Systems — Power supply filtering in home and professional HD audio equipment where low loss and stable capacitance are important to tone quality.
• Preamp and Signal Chain Power — Decoupling and local energy storage for preamplifier stages and sensitive audio circuitry.

Unique Advantages

• Audio‑focused design: Part of the LKG series and specified as TYPE‑II (BK), providing electrode and electrolyte choices targeted at improved audio performance.
• High bulk capacitance at moderate voltage: 3900 µF at 25 V enables significant energy storage in a compact snap‑in package for demanding audio rail requirements.
• Measured performance metrics: Explicit tan δ, ripple current, and leakage specifications allow engineers to predict behavior in filter and reservoir roles.
• Durability under thermal stress: Rated for 1000 hours at 85 °C, supporting designs exposed to elevated operating temperatures.
• Robust mounting: Snap‑in radial can simplifies assembly and provides firm mechanical retention for chassis and PCB installations.
• Regulatory compliance: RoHS compliance supports use in equipment targeting restricted‑substance requirements.

Why Choose LKG1E392MESABK?

The LKG1E392MESABK balances high capacitance, audio‑oriented electrical characteristics, and a rugged snap‑in package to address power filtering and reservoir needs in high‑fidelity audio equipment. Its TYPE‑II series designation and measured specifications—tan δ, ripple current, leakage, and endurance—make performance predictable for designers optimizing power rails and decoupling networks.

This capacitor suits engineers and procurement teams designing or maintaining audio amplifiers, professional audio systems, and other audio‑centric electronics that require stable, high‑value bulk capacitance in a compact, mountable format. The Nichicon LKG series supportability and clear endurance ratings provide a basis for specifying long‑term performance in audio designs.

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