LKS1J392MESB

The LKS1J392MESB is an aluminum electrolytic capacitor in Nichicon’s LKS series featuring a snap-in terminal style and a compact package optimized for audio equipment and general-purpose use. It is a polarized, radial can (snap-in) capacitor with a rated capacitance of 3.9 mF and a rated voltage of 63 V.

Designed as a smaller-sized member of the LKS family, this part is noted for providing an audible tone-quality improvement when used as a replacement for small standard products. The device is RoHS compliant.

Key Features

• Capacitance & Voltage: 3.9 mF nominal capacitance with a 63 V rated voltage, suitable where medium bulk capacitance at this voltage is required.
• Snap-in Package: Radial can with snap-in mounting for secure board or chassis installation and straightforward assembly.
• Polarized Device: Polar capacitor intended for DC circuits.
• Operating Temperature & Endurance: Specified for operation from −40 °C to +85 °C with an endurance rating of 1000 hours at 85 °C.
• Low-Frequency Ripple Handling: Rated ripple current of 2.7 A at 120 Hz (low frequency), for use in applications with appreciable AC ripple at that frequency.
• Capacitance Tolerance: ±20% (reference: measured at 120 Hz, 20 °C).
• 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).
• Compact Dimensions: Physical size approximately L: 2.5 × D: 3.0 cm, offering a smaller footprint within the LKS series.
• RoHS Compliance: Compliant with the RoHS directive (2011/65/EU and (EU)2015/863).

Typical Applications

• Audio Equipment: Used in audio circuits where replacement from a smaller standard product can produce a measurable improvement in tone quality.
• General-Purpose Electronic Equipment: Employed where a polarized snap-in aluminum electrolytic with 3.9 mF/63 V is required for bulk capacitance.
• PCB or Chassis Assemblies: Snap-in terminal simplifies secure installation in assemblies that accept radial can snap-in components.

Unique Advantages

• Smaller-sized LKS Series Design: Offers a reduced footprint within the LKS family while retaining the series’ audio-focused characteristics.
• Tone-Quality Focus: Specifically described for audio equipment with an intended effect of tone quality improvement when replacing small standard capacitors.
• Measurable Ripple Capacity: 2.7 A rated ripple current at 120 Hz provides quantifiable low-frequency ripple handling.
• Wide Ambient Range and Defined Endurance: −40 °C to +85 °C operating range and 1000 hours endurance at 85 °C give predictable performance over the published conditions.
• Defined Leakage Limit: Leakage current limit (≤ 3√CV μA after 5 minutes at 20 °C) supports predictable idle and powered-state behavior.
• Regulatory Compliance: RoHS compliance supports regulatory requirements for restricted substances.

Why Choose LKS1J392MESB?

The LKS1J392MESB is positioned for designers who need a compact, snap-in aluminum electrolytic capacitor with 3.9 mF capacitance at 63 V, particularly in audio and general-purpose electronics. Its combination of smaller-sized LKS-series construction, specified ripple current at 120 Hz, and defined endurance and leakage characteristics make it suitable for assemblies that require clear, verifiable capacitor performance under the published conditions.

As a member of Nichicon’s LKS family, this part is intended for applications where replacing a small standard product can improve tone quality while maintaining RoHS compliance and predictable electrical behavior over the specified temperature and endurance limits.

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