LKS2A392MESB

The LKS2A392MESB is a snap-in aluminum electrolytic capacitor from Nichicon’s LKS series designed for audio equipment and general-purpose electronic applications. It combines a compact snap-in can package with performance characteristics targeted at power smoothing and tone-quality improvement when used as an upgrade from smaller standard capacitors.

Key attributes include a 3.9 mF capacitance, 100 V rated voltage, snap-in mounting for secure chassis or board installation, and RoHS compliance, making it suitable for medium-voltage audio and power-supply filtering tasks within the series’ -40°C to +85°C operating range.

Key Features

• Electrical Capacity — 3.9 mF rated capacitance with ±20% tolerance, providing substantial bulk energy storage for smoothing and decoupling in power supply and audio circuits.
• High Voltage Rating — 100 V rated voltage to support higher-voltage rails common in audio amplifiers and general-purpose power modules.
• Snap-in Mounting — Radial, can-style snap-in terminal package for secure mechanical retention and straightforward assembly into chassis or PC boards.
• Ripple Handling — Rated ripple current of 4 A at 120 Hz for handling AC ripple on power rails typical in amplifier power supplies.
• Temperature and Lifetime — Operates from -40°C to +85°C with an endurance rating of 1000 hours at 85°C, providing predictable long-term behavior under rated conditions.
• Polarized Construction — Polar capacitor design appropriate for DC filter and smoothing applications where polarity is observed.
• RoHS Compliance — Conforms to RoHS directives (2011/65/EU, (EU)2015/863), supporting regulatory requirements for lead-free assemblies.
• Compact Footprint — Physical size L: 5 × D: 3 cm supports use where a smaller, high-capacitance snap-in solution is needed.

Typical Applications

• Audio Equipment — Bulk filtering and smoothing in amplifier power supplies; specified for audio use and noted for improving tone quality when replacing smaller standard parts.
• Power Supply Filtering — DC rail decoupling and ripple reduction on medium-voltage supplies up to 100 V.
• General-Purpose Electronics — Energy storage and smoothing in industrial and consumer electronic devices requiring polarized electrolytic capacitance.
• Replacement/Upgrade — Direct upgrade option from smaller standard capacitors to achieve improved tonal performance in audio circuits or increased bulk capacitance in constrained spaces.

Unique Advantages

• High Bulk Capacitance at Elevated Voltage: 3.9 mF at 100 V supplies substantial stored energy for smoothing and transient support without sacrificing voltage margin.
• Robust Ripple Capability: 4 A ripple current rating at 120 Hz helps maintain stable operation under typical rectified mains ripple conditions.
• Secure Snap-in Mounting: Radial snap-in can design provides reliable mechanical retention and simplifies assembly into chassis or board layouts.
• Designed for Audio Use: Series positioning and product description highlight suitability for audio equipment and tonal improvement when used as an upgrade.
• Wide Operating Range and Proven Endurance: -40°C to +85°C operation and 1000 hours at 85°C endurance support dependable performance in temperature-variable environments.
• Regulatory Compliance: RoHS-compliant construction supports modern environmental and manufacturing requirements.

Why Choose LKS2A392MESB?

The LKS2A392MESB delivers a combination of high capacitance, elevated voltage rating, and snap-in mechanical convenience tailored for audio designers and engineers needing a compact upgrade from smaller standard capacitors. Its ripple handling and endurance ratings make it suitable for smoothing and decoupling roles where reliability and predictable behaviour at up to 85°C are required.

This part is a practical choice for teams designing or retrofitting audio power supplies and general-purpose electronics that require polarized electrolytic energy storage, offering a balance of electrical performance, mechanical robustness, and RoHS compliance backed by Nichicon’s LKS series specifications.

If you would like pricing, availability, or application guidance for LKS2A392MESB, request a quote or submit an inquiry to our sales team and include your required quantities and delivery timeline.