LKS1J392MESY

The LKS1J392MESY is a snap-in terminal aluminum electrolytic capacitor from Nichicon's LKS series, designed for smaller-sized audio equipment applications. It provides a compact, polarized filter capacitor option intended to improve tone quality when replacing smaller standard capacitors.

Key characteristics include a capacitance of 3.9 mF, a 63 V rated voltage, and a snap-in radial can package that simplifies board mounting while meeting RoHS requirements.

Key Features

• Package & Mounting Snap-in, radial can package for secure mechanical mounting and straightforward insertion into power and filter sections of audio equipment PCB assemblies.
• Capacitance & Voltage 3.9 mF capacitance with a 63 V rated voltage and ±20% tolerance, providing bulk energy storage and smoothing for audio power rails.
• Ripple Handling Rated ripple current of 2.7 A at 120 Hz, suitable for AC ripple filtering in audio power supplies and amplifier stages.
• Temperature Range Operates from −40 °C to +85 °C, supporting a wide range of environmental conditions encountered in consumer and professional audio equipment.
• Endurance Specified endurance of 1000 hours at 85 °C with recovery to meet capacitance, tan δ, and leakage criteria after test, supporting predictable long-term performance.
• Leakage Current Specification After 5 minutes' application of rated voltage at 20 °C, leakage current is specified as not more than 3√CV (µA), where C is rated capacitance (µF) and V is voltage (V).
• Environmental Compliance Compliant with the RoHS directive (2011/65/EU, (EU)2015/863), supporting regulatory-driven designs.
• Physical Size Compact footprint with dimensions listed as L: 5 × D: 2 cm and a seated maximum height of 1.969 inch, enabling space-conscious designs.

Typical Applications

• Audio Power Supplies Bulk filtering and smoothing in amplifier and preamplifier power rails to reduce ripple and support consistent audio performance.
• Professional and Consumer Audio Gear Replacement or upgrade in mixers, amplifiers, and signal processing equipment where a smaller, higher-tone-quality capacitor is desired.
• Studio Equipment Power reservoir and decoupling in racks and live-sound electronics where compact snap-in mounting and endurance at 85 °C are beneficial.

Unique Advantages

• Designed for audio tone improvement Specified as smaller-sized and targeted for audio equipment, offering a straightforward upgrade path to influence perceived tone quality versus smaller standard parts.
• Simplified board assembly Snap-in terminal construction provides reliable mechanical retention and fast insertion for production environments.
• High ripple capability 2.7 A ripple current rating at 120 Hz helps maintain stable DC rails under dynamic audio loads.
• Wide operating temperature −40 °C to +85 °C operation and a 1000-hour endurance at 85 °C deliver robust performance across common audio equipment environments.
• Predictable leakage behavior Leakage current governed by the 3√CV specification gives designers a verifiable parameter for bias and bleed calculations.
• RoHS compliant Meets RoHS directive requirements for environmentally conscious designs.

Why Choose LKS1J392MESY?

The LKS1J392MESY from Nichicon offers a compact, snap-in aluminum electrolytic solution tailored to audio applications that require reliable bulk capacitance, measurable ripple handling, and long-term endurance at elevated temperature. Its combination of 3.9 mF capacitance, 63 V rating, and snap-in packaging makes it suitable for designers seeking a direct upgrade path to improve audio power stability and tone quality without changing assembly processes.

This part is ideal for audio OEMs and design engineers focused on compact power supply filtering and reliable long-term operation. RoHS compliance and clear electrical and endurance specifications support predictable deployment in regulated product lines.

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